packagereleasenotes

* .

* x

* fx

* fix

* f

* tests

* fix tests

* add tst

.gitignore

@@ -255,3 +255,5 @@ paket-files/
 /test/WireMock.Net.Tests/coverage.opencover.xml
 /test/WireMock.Net.Tests/coverage.netcoreapp3.1.opencover.xml
 /test/WireMock.Net.Tests/coverage.net5.0.opencover.xml
+
+*.received.*

CHANGELOG.md

@@ -1,3 +1,46 @@
+# 1.5.19 (17 March 2023)
+- [#903](https://github.com/WireMock-Net/WireMock.Net/pull/903) - Add WithBody with IDictionary (form-urlencoded values) [feature] contributed by [StefH](https://github.com/StefH)
+- [#904](https://github.com/WireMock-Net/WireMock.Net/pull/904) - Update Handlebars.Net.Helpers to 2.3.15 [feature] contributed by [StefH](https://github.com/StefH)
+- [#901](https://github.com/WireMock-Net/WireMock.Net/issues/901) - Matching one form-urlencoded value [feature]
+
+# 1.5.18 (09 March 2023)
+- [#893](https://github.com/WireMock-Net/WireMock.Net/pull/893) - Add 'Data' to response which can be used during transforming the response [feature] contributed by [StefH](https://github.com/StefH)
+- [#896](https://github.com/WireMock-Net/WireMock.Net/pull/896) - Bump Microsoft.Owin from 2.0.2 to 4.2.2 in /examples/WireMock.Net.Service [dependencies] contributed by [dependabot[bot]](https://github.com/apps/dependabot)
+- [#900](https://github.com/WireMock-Net/WireMock.Net/pull/900) - ProxySettings : Add logic to not save some requests depending on HttpMethods  [feature] contributed by [StefH](https://github.com/StefH)
+- [#897](https://github.com/WireMock-Net/WireMock.Net/issues/897) - WebHostBuilder.ConfigureServices method not found when using nunit3testadapter 4.4.0 [bug]
+- [#899](https://github.com/WireMock-Net/WireMock.Net/issues/899) - Ignore OPTIONS request when using proxyandrecord [feature]
+
+# 1.5.17 (25 February 2023)
+- [#881](https://github.com/WireMock-Net/WireMock.Net/pull/881) - Add WithBodyAsJson builder method with accepts a Func [feature] contributed by [StefH](https://github.com/StefH)
+- [#882](https://github.com/WireMock-Net/WireMock.Net/pull/882) - Add example code to test HTTP Status 400 and 500 [test] contributed by [StefH](https://github.com/StefH)
+- [#890](https://github.com/WireMock-Net/WireMock.Net/pull/890) - AdminApiMappingBuilder [feature] contributed by [StefH](https://github.com/StefH)
+
+# 1.5.16 (01 February 2023)
+- [#880](https://github.com/WireMock-Net/WireMock.Net/pull/880) - Add `WithProxy(string proxyUrl, X509Certificate2 certificate)` [feature] contributed by [StefH](https://github.com/StefH)
+- [#879](https://github.com/WireMock-Net/WireMock.Net/issues/879) - Possibility to pass a X509Certificate2 to WithProxy() or specifiy certificate loading options [feature]
+
+# 1.5.15 (29 January 2023)
+- [#878](https://github.com/WireMock-Net/WireMock.Net/pull/878) - Update REST Admin interface to support "Get Mapping(s) as C# Code" [feature] contributed by [StefH](https://github.com/StefH)
+
+# 1.5.14 (24 January 2023)
+- [#842](https://github.com/WireMock-Net/WireMock.Net/pull/842) - Generate C# code from Mapping [feature] contributed by [StefH](https://github.com/StefH)
+- [#869](https://github.com/WireMock-Net/WireMock.Net/pull/869) - Add MappingBuilder to build mappings in code and export to Models or JSON [feature] contributed by [StefH](https://github.com/StefH)
+- [#871](https://github.com/WireMock-Net/WireMock.Net/pull/871) - Add UseWebhooksFireAndForget to Server ConvertMapping [bug] contributed by [ggradnig](https://github.com/ggradnig)
+- [#872](https://github.com/WireMock-Net/WireMock.Net/pull/872) - Fix unsubscribe from LogEntriesChanged event handler [bug] contributed by [StefH](https://github.com/StefH)
+- [#875](https://github.com/WireMock-Net/WireMock.Net/pull/875) - Fix Self referencing loop detected for property [bug] contributed by [eseneckiy](https://github.com/eseneckiy)
+- [#877](https://github.com/WireMock-Net/WireMock.Net/pull/877) - Add unit test example for Transformer Handlebars String.Append String.Join [test] contributed by [StefH](https://github.com/StefH)
+- [#701](https://github.com/WireMock-Net/WireMock.Net/issues/701) - Allow to create MappingModel from c# to be able to configure local and remote mocks similarly [feature]
+- [#867](https://github.com/WireMock-Net/WireMock.Net/issues/867) - Can I build mappings with code and save them to JSON-file without starting server [feature]
+- [#870](https://github.com/WireMock-Net/WireMock.Net/issues/870) - Can not unsubscribe from LogEntriesChanged event. [bug]
+
+# 1.5.13 (11 December 2022)
+- [#858](https://github.com/WireMock-Net/WireMock.Net/pull/858) - Update Transformer functionality to return value instead of string [feature] contributed by [StefH](https://github.com/StefH)
+- [#859](https://github.com/WireMock-Net/WireMock.Net/pull/859) - Add UpdatedAt property to Mapping [feature] contributed by [StefH](https://github.com/StefH)
+- [#861](https://github.com/WireMock-Net/WireMock.Net/pull/861) - Add extra functionality for issue 55 contributed by [StefH](https://github.com/StefH)
+- [#862](https://github.com/WireMock-Net/WireMock.Net/pull/862) - Add client certificate support [feature] contributed by [billybraga](https://github.com/billybraga)
+- [#863](https://github.com/WireMock-Net/WireMock.Net/pull/863) - Update WireMockServer.CreateClient/CreateClients to include handlers [feature] contributed by [StefH](https://github.com/StefH)
+- [#856](https://github.com/WireMock-Net/WireMock.Net/issues/856) - Inconsistent result with overlapping (duplicate) request [bug]
+
 # 1.5.12 (03 December 2022)
 - [#851](https://github.com/WireMock-Net/WireMock.Net/pull/851) - Fix Linux CI build + Fix opencover [feature] contributed by [StefH](https://github.com/StefH)
 - [#853](https://github.com/WireMock-Net/WireMock.Net/pull/853) - Add .Net 7 [feature] contributed by [StefH](https://github.com/StefH)
@@ -625,8 +668,8 @@
 - [#263](https://github.com/WireMock-Net/WireMock.Net/issues/263) - Content-Type multipart/form-data is not serialized in proxy and recording mode [bug]
 
 # 1.0.11.0 (30 March 2019)
-- [#261](https://github.com/WireMock-Net/WireMock.Net/pull/261) - Fix BodyAsJson transform bug in ResponseMessageTransformer contributed by [psypilat](https://github.com/psypilat)
-- [#262](https://github.com/WireMock-Net/WireMock.Net/pull/262) - Add ProvideResponse_WithJsonBodyAndTransform test contributed by [psypilat](https://github.com/psypilat)
+- [#261](https://github.com/WireMock-Net/WireMock.Net/pull/261) - Fix BodyAsJson transform bug in ResponseMessageTransformer contributed by [ghost](https://github.com/ghost)
+- [#262](https://github.com/WireMock-Net/WireMock.Net/pull/262) - Add ProvideResponse_WithJsonBodyAndTransform test contributed by [ghost](https://github.com/ghost)
 
 # 1.0.10.0 (27 March 2019)
 - [#260](https://github.com/WireMock-Net/WireMock.Net/pull/260) - Fix Response.Delay property serialization [bug] contributed by [StefH](https://github.com/StefH)
@@ -915,6 +958,7 @@
 - [#45](https://github.com/WireMock-Net/WireMock.Net/pull/45) - Add RequestLogExpirationDuration and MaxRequestLogCount (#43) contributed by [StefH](https://github.com/StefH)
 - [#51](https://github.com/WireMock-Net/WireMock.Net/pull/51) - Observable logs contributed by [dmtrrk](https://github.com/dmtrrk)
 - [#15](https://github.com/WireMock-Net/WireMock.Net/issues/15) - New feature: Proxying [feature]
+- [#20](https://github.com/WireMock-Net/WireMock.Net/issues/20) - Add client certificate authentication [feature]
 - [#31](https://github.com/WireMock-Net/WireMock.Net/issues/31) - Feature request: Nuget package for standalone version [feature]
 - [#33](https://github.com/WireMock-Net/WireMock.Net/issues/33) - Issue with launching sample code (StandAlone server) [bug]
 - [#38](https://github.com/WireMock-Net/WireMock.Net/issues/38) - Bug: support also listening on *:{port}

Directory.Build.props

@@ -4,7 +4,7 @@
     </PropertyGroup>
 
     <PropertyGroup>
-        <VersionPrefix>1.5.12</VersionPrefix>
+        <VersionPrefix>1.5.19</VersionPrefix>
         <PackageIcon>WireMock.Net-Logo.png</PackageIcon>
         <PackageProjectUrl>https://github.com/WireMock-Net/WireMock.Net</PackageProjectUrl>
         <PackageLicenseExpression>Apache-2.0</PackageLicenseExpression>

Generate-ReleaseNotes.cmd

@@ -1,6 +1,6 @@
 rem https://github.com/StefH/GitHubReleaseNotes
 
-SET version=1.5.12
+SET version=1.5.19
 
 GitHubReleaseNotes --output CHANGELOG.md --skip-empty-releases --exclude-labels question invalid doc duplicate --version %version% --token %GH_TOKEN%
 

PackageReleaseNotes.txt

@@ -1,7 +1,6 @@
-# 1.5.12 (03 December 2022)
-- #851 Fix Linux CI build + Fix opencover [feature]
-- #853 Add .Net 7 [feature]
-- #854 Fix logic for QueryParameterMultipleValueSupport [bug]
-- #857 Update some dependencies [feature]
+# 1.5.19 (17 March 2023)
+- #903 Add WithBody with IDictionary (form-urlencoded values) [feature]
+- #904 Update Handlebars.Net.Helpers to 2.3.15 [feature]
+- #901 Matching one form-urlencoded value [feature]
 
 The full release notes can be found here: https://github.com/WireMock-Net/WireMock.Net/blob/master/CHANGELOG.md

WireMock.Net Solution.sln.DotSettings

@@ -33,6 +33,7 @@
 	<s:Boolean x:Key="/Default/UserDictionary/Words/=Scriban/@EntryIndexedValue">True</s:Boolean>
 	<s:Boolean x:Key="/Default/UserDictionary/Words/=Sigil/@EntryIndexedValue">True</s:Boolean>
 	<s:Boolean x:Key="/Default/UserDictionary/Words/=Stef/@EntryIndexedValue">True</s:Boolean>
+	<s:Boolean x:Key="/Default/UserDictionary/Words/=templated/@EntryIndexedValue">True</s:Boolean>
 	<s:Boolean x:Key="/Default/UserDictionary/Words/=Victoor/@EntryIndexedValue">True</s:Boolean>
 	<s:Boolean x:Key="/Default/UserDictionary/Words/=Webhook/@EntryIndexedValue">True</s:Boolean>
 	<s:Boolean x:Key="/Default/UserDictionary/Words/=Webhooks/@EntryIndexedValue">True</s:Boolean>

examples/WireMock.Net.Client/Program.cs

@@ -1,78 +1,125 @@
-using Newtonsoft.Json;
-using RestEase;
 using System;
 using System.Net.Http.Headers;
 using System.Text;
 using System.Threading.Tasks;
+using Newtonsoft.Json;
+using RestEase;
 using WireMock.Admin.Settings;
 using WireMock.Client;
+using WireMock.Client.Extensions;
 
-namespace WireMock.Net.Client
+namespace WireMock.Net.Client;
+
+class Program
 {
-    class Program
+    static async Task Main(string[] args)
     {
-        static async Task Main(string[] args)
+        // Create an implementation of the IWireMockAdminApi and pass in the base URL for the API.
+        var api = RestClient.For<IWireMockAdminApi>("http://localhost:9091");
+
+        // await api.ResetMappingsAsync().ConfigureAwait(false);
+
+        var mappingBuilder = api.GetMappingBuilder();
+        mappingBuilder.Given(m => m
+            .WithTitle("This is my title 1")
+            .WithRequest(req => req
+                .UsingGet()
+                .WithPath("/bla1")
+            )
+            .WithResponse(rsp => rsp
+                .WithBody("x1")
+                .WithHeaders(h => h.Add("h1", "v1"))
+            )
+        );
+
+        mappingBuilder.Given(m => m
+            .WithTitle("This is my title 2")
+            .WithRequest(req => req
+                .UsingGet()
+                .WithPath("/bla2")
+            )
+            .WithResponse(rsp => rsp
+                .WithBody("x2")
+                .WithHeaders(h => h.Add("h2", "v2"))
+            )
+        );
+
+        mappingBuilder.Given(m => m
+            .WithTitle("This is my title 3")
+            .WithRequest(req => req
+                .UsingGet()
+                .WithPath("/bla3")
+            )
+            .WithResponse(rsp => rsp
+                .WithBodyAsJson(new 
+                {
+                    x = "test"
+                }, true)
+            )
+        );
+
+        var result = await mappingBuilder.BuildAndPostAsync().ConfigureAwait(false);
+        Console.WriteLine($"result = {JsonConvert.SerializeObject(result)}");
+
+        var mappings = await api.GetMappingsAsync();
+        Console.WriteLine($"mappings = {JsonConvert.SerializeObject(mappings)}");
+
+        // Set BASIC Auth
+        var value = Convert.ToBase64String(Encoding.ASCII.GetBytes("a:b"));
+        api.Authorization = new AuthenticationHeaderValue("Basic", value);
+
+        var settings1 = await api.GetSettingsAsync();
+        Console.WriteLine($"settings1 = {JsonConvert.SerializeObject(settings1)}");
+
+        var settingsViaBuilder = new SettingsModelBuilder()
+            .WithGlobalProcessingDelay(1077)
+            .WithoutGlobalProcessingDelay()
+            .Build();
+
+        settings1.GlobalProcessingDelay = 1077;
+        api.PostSettingsAsync(settings1).Wait();
+
+        var settings2 = await api.GetSettingsAsync();
+        Console.WriteLine($"settings2 = {JsonConvert.SerializeObject(settings2)}");
+
+        mappings = await api.GetMappingsAsync();
+        Console.WriteLine($"mappings = {JsonConvert.SerializeObject(mappings)}");
+
+        try
         {
-            // Create an implementation of the IWireMockAdminApi and pass in the base URL for the API.
-            var api = RestClient.For<IWireMockAdminApi>("http://localhost:9091");
-
-            // Set BASIC Auth
-            var value = Convert.ToBase64String(Encoding.ASCII.GetBytes("a:b"));
-            api.Authorization = new AuthenticationHeaderValue("Basic", value);
-
-            var settings1 = await api.GetSettingsAsync();
-            Console.WriteLine($"settings1 = {JsonConvert.SerializeObject(settings1)}");
-
-            var settingsViaBuilder = new SettingsModelBuilder()
-                .WithGlobalProcessingDelay(1077)
-                .WithoutGlobalProcessingDelay()
-                .Build();
-
-            settings1.GlobalProcessingDelay = 1077;
-            api.PostSettingsAsync(settings1).Wait();
-
-            var settings2 = await api.GetSettingsAsync();
-            Console.WriteLine($"settings2 = {JsonConvert.SerializeObject(settings2)}");
-
-            var mappings = await api.GetMappingsAsync();
-            Console.WriteLine($"mappings = {JsonConvert.SerializeObject(mappings)}");
-
-            try
-            {
-                var guid = Guid.Parse("11111110-a633-40e8-a244-5cb80bc0ab66");
-                var mapping = await api.GetMappingAsync(guid);
-                Console.WriteLine($"mapping = {JsonConvert.SerializeObject(mapping)}");
-            }
-            catch (Exception e)
-            {
-            }
-
-            var request = await api.GetRequestsAsync();
-            Console.WriteLine($"request = {JsonConvert.SerializeObject(request)}");
-
-            //var deleteRequestsAsync = api.DeleteRequestsAsync().Result;
-            //Console.WriteLine($"DeleteRequestsAsync = {deleteRequestsAsync.Status}");
-
-            //var resetRequestsAsync = api.ResetRequestsAsync().Result;
-            //Console.WriteLine($"ResetRequestsAsync = {resetRequestsAsync.Status}");
-
-            var scenarioStates = await api.GetScenariosAsync();
-            Console.WriteLine($"GetScenariosAsync = {JsonConvert.SerializeObject(scenarioStates)}");
-
-            var postFileResult = await api.PostFileAsync("1.cs", "C# Hello");
-            Console.WriteLine($"postFileResult = {JsonConvert.SerializeObject(postFileResult)}");
-
-            var getFileResult = await api.GetFileAsync("1.cs");
-            Console.WriteLine($"getFileResult = {getFileResult}");
-
-            var resetMappingsAsync = await api.ResetMappingsAsync();
-            Console.WriteLine($"resetMappingsAsync = {resetMappingsAsync.Status}");
-
-            var resetMappingsAndReloadStaticMappingsAsync = await api.ResetMappingsAsync(true);
-            Console.WriteLine($"resetMappingsAndReloadStaticMappingsAsync = {resetMappingsAndReloadStaticMappingsAsync.Status}");
-
-            Console.WriteLine("Press any key to quit");
-            Console.ReadKey();
+            var guid = Guid.Parse("11111110-a633-40e8-a244-5cb80bc0ab66");
+            var mapping = await api.GetMappingAsync(guid);
+            Console.WriteLine($"mapping = {JsonConvert.SerializeObject(mapping)}");
         }
+        catch (Exception e)
+        {
+        }
+
+        var request = await api.GetRequestsAsync();
+        Console.WriteLine($"request = {JsonConvert.SerializeObject(request)}");
+
+        //var deleteRequestsAsync = api.DeleteRequestsAsync().Result;
+        //Console.WriteLine($"DeleteRequestsAsync = {deleteRequestsAsync.Status}");
+
+        //var resetRequestsAsync = api.ResetRequestsAsync().Result;
+        //Console.WriteLine($"ResetRequestsAsync = {resetRequestsAsync.Status}");
+
+        var scenarioStates = await api.GetScenariosAsync();
+        Console.WriteLine($"GetScenariosAsync = {JsonConvert.SerializeObject(scenarioStates)}");
+
+        var postFileResult = await api.PostFileAsync("1.cs", "C# Hello");
+        Console.WriteLine($"postFileResult = {JsonConvert.SerializeObject(postFileResult)}");
+
+        var getFileResult = await api.GetFileAsync("1.cs");
+        Console.WriteLine($"getFileResult = {getFileResult}");
+
+        var resetMappingsAsync = await api.ResetMappingsAsync();
+        Console.WriteLine($"resetMappingsAsync = {resetMappingsAsync.Status}");
+
+        var resetMappingsAndReloadStaticMappingsAsync = await api.ResetMappingsAsync(true);
+        Console.WriteLine($"resetMappingsAndReloadStaticMappingsAsync = {resetMappingsAndReloadStaticMappingsAsync.Status}");
+
+        Console.WriteLine("Press any key to quit");
+        Console.ReadKey();
     }
 }

examples/WireMock.Net.Client/WireMock.Net.Client.csproj

@@ -1,19 +1,13 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
-  <PropertyGroup>
-    <OutputType>Exe</OutputType>
-    <TargetFramework>net6.0</TargetFramework>
-    <ApplicationIcon>../../resources/WireMock.Net-Logo.ico</ApplicationIcon>
-  </PropertyGroup>
+    <PropertyGroup>
+        <OutputType>Exe</OutputType>
+        <TargetFramework>net7.0</TargetFramework>
+        <ApplicationIcon>../../resources/WireMock.Net-Logo.ico</ApplicationIcon>
+    </PropertyGroup>
 
-  <ItemGroup>
-    <PackageReference Include="Newtonsoft.Json" Version="13.0.1" />
-    <PackageReference Include="RestEase" Version="1.5.7" />
-  </ItemGroup>
-
-  <ItemGroup>
-    <ProjectReference Include="..\..\src\WireMock.Net.Abstractions\WireMock.Net.Abstractions.csproj" />
-    <ProjectReference Include="..\..\src\WireMock.Net.RestClient\WireMock.Net.RestClient.csproj" />
-  </ItemGroup>
+    <ItemGroup>
+        <ProjectReference Include="..\..\src\WireMock.Net.RestClient\WireMock.Net.RestClient.csproj" />
+    </ItemGroup>
 
 </Project>

examples/WireMock.Net.Console.NET6/WireMock.Net.Console.NET6.csproj

@@ -27,7 +27,7 @@
 
   <ItemGroup>
     <ProjectReference Include="..\..\src\WireMock.Net\WireMock.Net.csproj" />
-    <PackageReference Include="Handlebars.Net.Helpers" Version="2.*" />
+    <!--<PackageReference Include="Handlebars.Net.Helpers" Version="2.*" />-->
     <PackageReference Include="log4net" Version="2.0.15" />
     <PackageReference Include="Microsoft.Extensions.Configuration" Version="6.0.0" />
     <PackageReference Include="Newtonsoft.Json" Version="13.0.1" />

examples/WireMock.Net.Console.NETCoreApp/WireMock.Net.Console.NETCoreApp.csproj

@@ -1,4 +1,4 @@
-<Project Sdk="Microsoft.NET.Sdk">
+<Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
     <OutputType>Exe</OutputType>
@@ -21,10 +21,10 @@
     <ProjectReference Include="..\..\src\WireMock.Net\WireMock.Net.csproj" />
     <PackageReference Include="Handlebars.Net.Helpers" Version="2.*" />
     <PackageReference Include="Handlebars.Net.Helpers.DynamicLinq" Version="2.*" />
-    <PackageReference Include="Handlebars.Net.Helpers.Json" Version="2.3.10" />
+    <PackageReference Include="Handlebars.Net.Helpers.Json" Version="2.3.*" />
     <PackageReference Include="Handlebars.Net.Helpers.XPath" Version="2.*" />
-    <PackageReference Include="Handlebars.Net.Helpers.Xeger" Version="2.3.10" />
-    <PackageReference Include="Handlebars.Net.Helpers.Random" Version="2.3.10" />
+    <PackageReference Include="Handlebars.Net.Helpers.Xeger" Version="2.3.*" />
+    <PackageReference Include="Handlebars.Net.Helpers.Random" Version="2.3.*" />
     <PackageReference Include="log4net" Version="2.0.15" />
     <PackageReference Include="Newtonsoft.Json" Version="13.0.1" />
   </ItemGroup>

examples/WireMock.Net.Console.NETCoreApp2/WireMock.Net.Console.NETCoreApp2.csproj

@@ -1,4 +1,4 @@
-<Project Sdk="Microsoft.NET.Sdk">
+<Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
     <OutputType>Exe</OutputType>
@@ -33,10 +33,10 @@
     <ProjectReference Include="..\..\src\WireMock.Net\WireMock.Net.csproj" />
     <PackageReference Include="Handlebars.Net.Helpers" Version="2.*" />
     <PackageReference Include="Handlebars.Net.Helpers.DynamicLinq" Version="2.*" />
-    <PackageReference Include="Handlebars.Net.Helpers.Json" Version="2.3.10" />
+    <PackageReference Include="Handlebars.Net.Helpers.Json" Version="2.3.*" />
     <PackageReference Include="Handlebars.Net.Helpers.XPath" Version="2.*" />
-    <PackageReference Include="Handlebars.Net.Helpers.Xeger" Version="2.3.10" />
-    <PackageReference Include="Handlebars.Net.Helpers.Random" Version="2.3.10" />
+    <PackageReference Include="Handlebars.Net.Helpers.Xeger" Version="2.3.*" />
+    <PackageReference Include="Handlebars.Net.Helpers.Random" Version="2.3.*" />
     <PackageReference Include="log4net" Version="2.0.15" />
     <PackageReference Include="Newtonsoft.Json" Version="13.0.1" />
   </ItemGroup>

examples/WireMock.Net.Console.NETCoreApp3/WireMock.Net.Console.NETCoreApp3.csproj

@@ -1,4 +1,4 @@
-<Project Sdk="Microsoft.NET.Sdk">
+<Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
     <OutputType>Exe</OutputType>
@@ -30,10 +30,10 @@
     <ProjectReference Include="..\..\src\WireMock.Net\WireMock.Net.csproj" />
     <PackageReference Include="Handlebars.Net.Helpers" Version="2.*" />
     <PackageReference Include="Handlebars.Net.Helpers.DynamicLinq" Version="2.*" />
-    <PackageReference Include="Handlebars.Net.Helpers.Json" Version="2.3.10" />
+    <PackageReference Include="Handlebars.Net.Helpers.Json" Version="2.3.*" />
     <PackageReference Include="Handlebars.Net.Helpers.XPath" Version="2.*" />
-    <PackageReference Include="Handlebars.Net.Helpers.Xeger" Version="2.3.10" />
-    <PackageReference Include="Handlebars.Net.Helpers.Random" Version="2.3.10" />
+    <PackageReference Include="Handlebars.Net.Helpers.Xeger" Version="2.3.*" />
+    <PackageReference Include="Handlebars.Net.Helpers.Random" Version="2.3.*" />
     <PackageReference Include="log4net" Version="2.0.15" />
     <PackageReference Include="Newtonsoft.Json" Version="13.0.1" />
   </ItemGroup>

examples/WireMock.Net.Console.Net452.Classic/MainApp.cs

@@ -1,6 +1,8 @@
 using System;
+using System.Collections.Generic;
 using System.Globalization;
 using System.IO;
+using System.Linq;
 using System.Net;
 using System.Threading.Tasks;
 using Newtonsoft.Json;
@@ -33,12 +35,54 @@ namespace WireMock.Net.ConsoleApplication
         }
     }
 
+    public class Todo
+    {
+        public int Id { get; set; }
+    }
+
     public static class MainApp
     {
         public static void Run()
         {
-            var s = WireMockServer.Start();
-            s.Stop();
+            var mappingBuilder = new MappingBuilder();
+            mappingBuilder
+                .Given(Request
+                    .Create()
+                    .WithPath(new WildcardMatcher("/param2", true))
+                    .WithParam("key", "test")
+                    .UsingGet())
+                .RespondWith(Response.Create()
+                    .WithHeader("Content-Type", "application/json")
+                    .WithBodyAsJson(new { result = "param2" }));
+
+            var json = mappingBuilder.ToJson();
+            System.Console.WriteLine("mappingBuilder : Json = {0}", json);
+
+            var todos = new Dictionary<int, Todo>();
+
+            var server = WireMockServer.Start();
+
+            server
+                .Given(Request.Create()
+                    .WithPath("todos")
+                    .UsingGet()
+                )
+                .RespondWith(Response.Create()
+                    .WithBodyAsJson(todos.Values)
+                );
+
+            server
+                .Given(Request.Create()
+                    .UsingGet()
+                    .WithPath("todos")
+                    .WithParam("id")
+                )
+                .RespondWith(Response.Create()
+                    .WithBodyAsJson(rm => todos[int.Parse(rm.Query!["id"].ToString())])
+                );
+
+            var httpClient = server.CreateClient();
+            //server.Stop();
 
             var httpAndHttpsWithPort = WireMockServer.Start(new WireMockServerSettings
             {
@@ -57,7 +101,7 @@ namespace WireMock.Net.ConsoleApplication
             string url2 = "http://localhost:9092/";
             string url3 = "https://localhost:9443/";
 
-            var server = WireMockServer.Start(new WireMockServerSettings
+            server = WireMockServer.Start(new WireMockServerSettings
             {
                 AllowCSharpCodeMatcher = true,
                 Urls = new[] { url1, url2, url3 },
@@ -93,7 +137,43 @@ namespace WireMock.Net.ConsoleApplication
 
             // server.AllowPartialMapping();
 
+            // 400 ms
+            server
+                .Given(Request.Create()
+                    .WithPath("/slow/400")
+                    .UsingPost())
+                .RespondWith(
+                    Response.Create()
+                        .WithStatusCode(400)
+                        .WithBody("return 400")
+                        .WithHeader("Content-Type", "text/plain")
+                );
+            // 4 sec
+            server
+                .Given(Request.Create()
+                    .WithPath("/slow/500")
+                    .UsingPost())
+                .RespondWith(
+                    Response.Create()
+                        .WithStatusCode(500)
+                        .WithBody("return 500")
+                        .WithHeader("Content-Type", "text/plain")
+                );
+
+
+            server
+                .Given(Request.Create()
+                    .UsingMethod("GET")
+                    .WithPath("/foo1")
+                    .WithParam("p1", "xyz")
+                )
+                .WithGuid("90356dba-b36c-469a-a17e-669cd84f1f05")
+                .RespondWith(Response.Create()
+                    .WithBody("Hello World")
+                );
+
             server.Given(Request.Create().WithPath(MatchOperator.Or, "/mypath", "/mypath1", "/mypath2").UsingPost())
+                .WithGuid("86984b0e-2516-4935-a2ef-b45bf4820d7d")
                 .RespondWith(Response.Create()
                         .WithHeader("Content-Type", "application/json")
                         .WithBodyAsJson("{{JsonPath.SelectToken request.body \"..name\"}}")
@@ -366,14 +446,14 @@ namespace WireMock.Net.ConsoleApplication
             // http://localhost:9091/trans?start=1000&stop=1&stop=2
             server
                 .Given(Request.Create().WithPath("/trans").UsingGet())
-                .WithGuid("90356dba-b36c-469a-a17e-669cd84f1f05")
+                .WithGuid("90356dba-b36c-469a-a17e-669cd84f1f06")
                 .RespondWith(Response.Create()
                     .WithStatusCode(200)
                     .WithHeader("Content-Type", "application/json")
                     .WithHeader("Transformed-Postman-Token", "token is {{request.headers.Postman-Token}}")
                     .WithHeader("xyz_{{request.headers.Postman-Token}}", "token is {{request.headers.Postman-Token}}")
                     .WithBody(@"{""msg"": ""Hello world CATCH-ALL on /*, {{request.path}}, add={{Math.Add request.query.start.[0] 42}} bykey={{request.query.start}}, bykey={{request.query.stop}}, byidx0={{request.query.stop.[0]}}, byidx1={{request.query.stop.[1]}}"" }")
-                    .WithTransformer(TransformerType.Handlebars, true, ReplaceNodeOptions.None)
+                    .WithTransformer(TransformerType.Handlebars, true, ReplaceNodeOptions.EvaluateAndTryToConvert)
                     .WithDelay(TimeSpan.FromMilliseconds(100))
                 );
 
@@ -563,6 +643,7 @@ namespace WireMock.Net.ConsoleApplication
                     .WithStatusCode(200)
                     .WithHeader("Content-Type", "application/json")
                     .WithBodyAsJson(new { Id = "5bdf076c-5654-4b3e-842c-7caf1fabf8c9" }));
+
             server
                 .Given(Request.Create().WithPath("/random200or505").UsingGet())
                 .RespondWith(Response.Create().WithCallback(request =>
@@ -570,7 +651,11 @@ namespace WireMock.Net.ConsoleApplication
                     int code = new Random().Next(1, 2) == 1 ? 505 : 200;
                     return new ResponseMessage
                     {
-                        BodyData = new BodyData { BodyAsString = "random200or505:" + code, DetectedBodyType = Types.BodyType.String },
+                        BodyData = new BodyData
+                        {
+                            BodyAsString = "random200or505:" + code + ", HeadersFromRequest = " + string.Join(",", request.Headers),
+                            DetectedBodyType = Types.BodyType.String,
+                        },
                         StatusCode = code
                     };
                 }));

examples/WireMock.Net.Console.Net452.Classic/WireMock.Net.Console.Net452.Classic.csproj

@@ -42,11 +42,11 @@
     <Reference Include="Handlebars, Version=2.1.2.0, Culture=neutral, PublicKeyToken=22225d0bf33cd661, processorArchitecture=MSIL">
       <HintPath>..\..\packages\Handlebars.Net.2.1.2\lib\net452\Handlebars.dll</HintPath>
     </Reference>
-    <Reference Include="Handlebars.Net.Helpers, Version=2.3.10.0, Culture=neutral, PublicKeyToken=00d131fae0c250bc, processorArchitecture=MSIL">
-      <HintPath>..\..\packages\Handlebars.Net.Helpers.2.3.10\lib\net452\Handlebars.Net.Helpers.dll</HintPath>
+    <Reference Include="Handlebars.Net.Helpers, Version=2.3.12.0, Culture=neutral, PublicKeyToken=00d131fae0c250bc, processorArchitecture=MSIL">
+      <HintPath>..\..\packages\Handlebars.Net.Helpers.2.3.12\lib\net452\Handlebars.Net.Helpers.dll</HintPath>
     </Reference>
-    <Reference Include="HandlebarsDotNet.Helpers.Core, Version=2.3.10.0, Culture=neutral, PublicKeyToken=00d131fae0c250bc, processorArchitecture=MSIL">
-      <HintPath>..\..\packages\Handlebars.Net.Helpers.Core.2.3.10\lib\net452\HandlebarsDotNet.Helpers.Core.dll</HintPath>
+    <Reference Include="HandlebarsDotNet.Helpers.Core, Version=2.3.12.0, Culture=neutral, PublicKeyToken=00d131fae0c250bc, processorArchitecture=MSIL">
+      <HintPath>..\..\packages\Handlebars.Net.Helpers.Core.2.3.12\lib\net452\HandlebarsDotNet.Helpers.Core.dll</HintPath>
     </Reference>
     <Reference Include="log4net, Version=2.0.15.0, Culture=neutral, PublicKeyToken=669e0ddf0bb1aa2a, processorArchitecture=MSIL">
       <HintPath>..\..\packages\log4net.2.0.15\lib\net45\log4net.dll</HintPath>

examples/WireMock.Net.Console.Net452.Classic/packages.config

@@ -2,8 +2,8 @@
 <packages>
   <package id="AnyOf" version="0.3.0" targetFramework="net452" />
   <package id="Handlebars.Net" version="2.1.2" targetFramework="net452" />
-  <package id="Handlebars.Net.Helpers" version="2.3.10" targetFramework="net452" />
-  <package id="Handlebars.Net.Helpers.Core" version="2.3.10" targetFramework="net452" />
+  <package id="Handlebars.Net.Helpers" version="2.3.12" targetFramework="net452" />
+  <package id="Handlebars.Net.Helpers.Core" version="2.3.12" targetFramework="net452" />
   <package id="log4net" version="2.0.15" targetFramework="net452" />
   <package id="Microsoft.Owin.Host.HttpListener" version="3.1.0" targetFramework="net452" />
   <package id="Newtonsoft.Json" version="13.0.1" targetFramework="net452" />

examples/WireMock.Net.Console.Net461.Classic/WireMock.Net.Console.Net461.Classic.csproj

@@ -41,11 +41,11 @@
     <Reference Include="Handlebars, Version=2.1.2.0, Culture=neutral, PublicKeyToken=22225d0bf33cd661, processorArchitecture=MSIL">
       <HintPath>..\..\packages\Handlebars.Net.2.1.2\lib\net46\Handlebars.dll</HintPath>
     </Reference>
-    <Reference Include="Handlebars.Net.Helpers, Version=2.3.10.0, Culture=neutral, PublicKeyToken=00d131fae0c250bc, processorArchitecture=MSIL">
-      <HintPath>..\..\packages\Handlebars.Net.Helpers.2.3.10\lib\net452\Handlebars.Net.Helpers.dll</HintPath>
+    <Reference Include="Handlebars.Net.Helpers, Version=2.3.12.0, Culture=neutral, PublicKeyToken=00d131fae0c250bc, processorArchitecture=MSIL">
+      <HintPath>..\..\packages\Handlebars.Net.Helpers.2.3.12\lib\net46\Handlebars.Net.Helpers.dll</HintPath>
     </Reference>
-    <Reference Include="HandlebarsDotNet.Helpers.Core, Version=2.3.10.0, Culture=neutral, PublicKeyToken=00d131fae0c250bc, processorArchitecture=MSIL">
-      <HintPath>..\..\packages\Handlebars.Net.Helpers.Core.2.3.10\lib\net452\HandlebarsDotNet.Helpers.Core.dll</HintPath>
+    <Reference Include="HandlebarsDotNet.Helpers.Core, Version=2.3.12.0, Culture=neutral, PublicKeyToken=00d131fae0c250bc, processorArchitecture=MSIL">
+      <HintPath>..\..\packages\Handlebars.Net.Helpers.Core.2.3.12\lib\net46\HandlebarsDotNet.Helpers.Core.dll</HintPath>
     </Reference>
     <Reference Include="log4net, Version=2.0.15.0, Culture=neutral, PublicKeyToken=669e0ddf0bb1aa2a, processorArchitecture=MSIL">
       <HintPath>..\..\packages\log4net.2.0.15\lib\net45\log4net.dll</HintPath>

examples/WireMock.Net.Console.Net461.Classic/packages.config

@@ -2,8 +2,8 @@
 <packages>
   <package id="AnyOf" version="0.3.0" targetFramework="net461" />
   <package id="Handlebars.Net" version="2.1.2" targetFramework="net461" />
-  <package id="Handlebars.Net.Helpers" version="2.3.10" targetFramework="net461" />
-  <package id="Handlebars.Net.Helpers.Core" version="2.3.10" targetFramework="net461" />
+  <package id="Handlebars.Net.Helpers" version="2.3.12" targetFramework="net461" />
+  <package id="Handlebars.Net.Helpers.Core" version="2.3.12" targetFramework="net461" />
   <package id="log4net" version="2.0.15" targetFramework="net461" />
   <package id="Microsoft.Extensions.DependencyInjection.Abstractions" version="2.2.0" targetFramework="net461" />
   <package id="Newtonsoft.Json" version="13.0.1" targetFramework="net461" />

examples/WireMock.Net.Console.Net472.Classic/WireMock.Net.Console.Net472.Classic.csproj

@@ -49,29 +49,29 @@
     <Reference Include="Handlebars, Version=2.1.2.0, Culture=neutral, PublicKeyToken=22225d0bf33cd661, processorArchitecture=MSIL">
       <HintPath>..\..\packages\Handlebars.Net.2.1.2\lib\net46\Handlebars.dll</HintPath>
     </Reference>
-    <Reference Include="Handlebars.Net.Helpers, Version=2.3.10.0, Culture=neutral, PublicKeyToken=00d131fae0c250bc, processorArchitecture=MSIL">
-      <HintPath>..\..\packages\Handlebars.Net.Helpers.2.3.10\lib\net452\Handlebars.Net.Helpers.dll</HintPath>
+    <Reference Include="Handlebars.Net.Helpers, Version=2.3.12.0, Culture=neutral, PublicKeyToken=00d131fae0c250bc, processorArchitecture=MSIL">
+      <HintPath>..\..\packages\Handlebars.Net.Helpers.2.3.12\lib\net46\Handlebars.Net.Helpers.dll</HintPath>
     </Reference>
-    <Reference Include="HandlebarsDotNet.Helpers.Core, Version=2.3.10.0, Culture=neutral, PublicKeyToken=00d131fae0c250bc, processorArchitecture=MSIL">
-      <HintPath>..\..\packages\Handlebars.Net.Helpers.Core.2.3.10\lib\net452\HandlebarsDotNet.Helpers.Core.dll</HintPath>
+    <Reference Include="HandlebarsDotNet.Helpers.Core, Version=2.3.12.0, Culture=neutral, PublicKeyToken=00d131fae0c250bc, processorArchitecture=MSIL">
+      <HintPath>..\..\packages\Handlebars.Net.Helpers.Core.2.3.12\lib\net46\HandlebarsDotNet.Helpers.Core.dll</HintPath>
     </Reference>
-    <Reference Include="HandlebarsDotNet.Helpers.DynamicLinq, Version=2.3.10.0, Culture=neutral, PublicKeyToken=00d131fae0c250bc, processorArchitecture=MSIL">
-      <HintPath>..\..\packages\Handlebars.Net.Helpers.DynamicLinq.2.3.10\lib\net452\HandlebarsDotNet.Helpers.DynamicLinq.dll</HintPath>
+    <Reference Include="HandlebarsDotNet.Helpers.DynamicLinq, Version=2.3.12.0, Culture=neutral, PublicKeyToken=00d131fae0c250bc, processorArchitecture=MSIL">
+      <HintPath>..\..\packages\Handlebars.Net.Helpers.DynamicLinq.2.3.12\lib\net46\HandlebarsDotNet.Helpers.DynamicLinq.dll</HintPath>
     </Reference>
-    <Reference Include="HandlebarsDotNet.Helpers.Humanizer, Version=2.3.10.0, Culture=neutral, PublicKeyToken=00d131fae0c250bc, processorArchitecture=MSIL">
-      <HintPath>..\..\packages\Handlebars.Net.Helpers.Humanizer.2.3.10\lib\net452\HandlebarsDotNet.Helpers.Humanizer.dll</HintPath>
+    <Reference Include="HandlebarsDotNet.Helpers.Humanizer, Version=2.3.12.0, Culture=neutral, PublicKeyToken=00d131fae0c250bc, processorArchitecture=MSIL">
+      <HintPath>..\..\packages\Handlebars.Net.Helpers.Humanizer.2.3.12\lib\net46\HandlebarsDotNet.Helpers.Humanizer.dll</HintPath>
     </Reference>
-    <Reference Include="HandlebarsDotNet.Helpers.Json, Version=2.3.10.0, Culture=neutral, PublicKeyToken=00d131fae0c250bc, processorArchitecture=MSIL">
-      <HintPath>..\..\packages\Handlebars.Net.Helpers.Json.2.3.10\lib\net452\HandlebarsDotNet.Helpers.Json.dll</HintPath>
+    <Reference Include="HandlebarsDotNet.Helpers.Json, Version=2.3.12.0, Culture=neutral, PublicKeyToken=00d131fae0c250bc, processorArchitecture=MSIL">
+      <HintPath>..\..\packages\Handlebars.Net.Helpers.Json.2.3.12\lib\net46\HandlebarsDotNet.Helpers.Json.dll</HintPath>
     </Reference>
-    <Reference Include="HandlebarsDotNet.Helpers.Random, Version=2.3.10.0, Culture=neutral, PublicKeyToken=00d131fae0c250bc, processorArchitecture=MSIL">
-      <HintPath>..\..\packages\Handlebars.Net.Helpers.Random.2.3.10\lib\net452\HandlebarsDotNet.Helpers.Random.dll</HintPath>
+    <Reference Include="HandlebarsDotNet.Helpers.Random, Version=2.3.12.0, Culture=neutral, PublicKeyToken=00d131fae0c250bc, processorArchitecture=MSIL">
+      <HintPath>..\..\packages\Handlebars.Net.Helpers.Random.2.3.12\lib\net46\HandlebarsDotNet.Helpers.Random.dll</HintPath>
     </Reference>
-    <Reference Include="HandlebarsDotNet.Helpers.Xeger, Version=2.3.10.0, Culture=neutral, PublicKeyToken=00d131fae0c250bc, processorArchitecture=MSIL">
-      <HintPath>..\..\packages\Handlebars.Net.Helpers.Xeger.2.3.10\lib\net452\HandlebarsDotNet.Helpers.Xeger.dll</HintPath>
+    <Reference Include="HandlebarsDotNet.Helpers.Xeger, Version=2.3.12.0, Culture=neutral, PublicKeyToken=00d131fae0c250bc, processorArchitecture=MSIL">
+      <HintPath>..\..\packages\Handlebars.Net.Helpers.Xeger.2.3.12\lib\net46\HandlebarsDotNet.Helpers.Xeger.dll</HintPath>
     </Reference>
-    <Reference Include="HandlebarsDotNet.Helpers.XPath, Version=2.3.10.0, Culture=neutral, PublicKeyToken=00d131fae0c250bc, processorArchitecture=MSIL">
-      <HintPath>..\..\packages\Handlebars.Net.Helpers.XPath.2.3.10\lib\net452\HandlebarsDotNet.Helpers.XPath.dll</HintPath>
+    <Reference Include="HandlebarsDotNet.Helpers.XPath, Version=2.3.12.0, Culture=neutral, PublicKeyToken=00d131fae0c250bc, processorArchitecture=MSIL">
+      <HintPath>..\..\packages\Handlebars.Net.Helpers.XPath.2.3.12\lib\net46\HandlebarsDotNet.Helpers.XPath.dll</HintPath>
     </Reference>
     <Reference Include="Humanizer, Version=2.14.0.0, Culture=neutral, PublicKeyToken=979442b78dfc278e, processorArchitecture=MSIL">
       <HintPath>..\..\packages\Humanizer.Core.2.14.1\lib\netstandard2.0\Humanizer.dll</HintPath>

examples/WireMock.Net.Console.Net472.Classic/packages.config

@@ -3,14 +3,14 @@
   <package id="AnyOf" version="0.3.0" targetFramework="net472" />
   <package id="Fare" version="2.2.1" targetFramework="net472" />
   <package id="Handlebars.Net" version="2.1.2" targetFramework="net472" />
-  <package id="Handlebars.Net.Helpers" version="2.3.10" targetFramework="net472" />
-  <package id="Handlebars.Net.Helpers.Core" version="2.3.10" targetFramework="net472" />
-  <package id="Handlebars.Net.Helpers.DynamicLinq" version="2.3.10" targetFramework="net472" />
-  <package id="Handlebars.Net.Helpers.Humanizer" version="2.3.10" targetFramework="net472" />
-  <package id="Handlebars.Net.Helpers.Json" version="2.3.10" targetFramework="net472" />
-  <package id="Handlebars.Net.Helpers.Random" version="2.3.10" targetFramework="net472" />
-  <package id="Handlebars.Net.Helpers.Xeger" version="2.3.10" targetFramework="net472" />
-  <package id="Handlebars.Net.Helpers.XPath" version="2.3.10" targetFramework="net472" />
+  <package id="Handlebars.Net.Helpers" version="2.3.12" targetFramework="net472" />
+  <package id="Handlebars.Net.Helpers.Core" version="2.3.12" targetFramework="net472" />
+  <package id="Handlebars.Net.Helpers.DynamicLinq" version="2.3.12" targetFramework="net472" />
+  <package id="Handlebars.Net.Helpers.Humanizer" version="2.3.12" targetFramework="net472" />
+  <package id="Handlebars.Net.Helpers.Json" version="2.3.12" targetFramework="net472" />
+  <package id="Handlebars.Net.Helpers.Random" version="2.3.12" targetFramework="net472" />
+  <package id="Handlebars.Net.Helpers.Xeger" version="2.3.12" targetFramework="net472" />
+  <package id="Handlebars.Net.Helpers.XPath" version="2.3.12" targetFramework="net472" />
   <package id="Humanizer" version="2.14.1" targetFramework="net472" />
   <package id="Humanizer.Core" version="2.14.1" targetFramework="net472" />
   <package id="Humanizer.Core.af" version="2.14.1" targetFramework="net472" />

examples/WireMock.Net.Console.Proxy.Net452/Program.cs

@@ -1,6 +1,6 @@
-using System;
+using System;
+using System.Collections.Specialized;
 using System.Net.Http;
-using Newtonsoft.Json;
 using WireMock.Server;
 using WireMock.Settings;
 
@@ -26,10 +26,8 @@ namespace WireMock.Net.Console.Proxy.Net452
                 }
             });
 
-            server.LogEntriesChanged += (sender, eventRecordArgs) =>
-            {
-                System.Console.WriteLine(JsonConvert.SerializeObject(eventRecordArgs.NewItems, Formatting.Indented));
-            };
+            System.Console.WriteLine("Subscribing to LogEntriesChanged");
+            server.LogEntriesChanged += Server_LogEntriesChanged;
 
             var uri = new Uri(urls[0]);
             var form = new MultipartFormDataContent
@@ -38,9 +36,23 @@ namespace WireMock.Net.Console.Proxy.Net452
             };
             new HttpClient().PostAsync(uri, form).GetAwaiter().GetResult();
 
+            System.Console.WriteLine("Unsubscribing to LogEntriesChanged");
+            server.LogEntriesChanged -= Server_LogEntriesChanged;
+
+            form = new MultipartFormDataContent
+            {
+                { new StringContent("data2"), "test2", "test2.txt" }
+            };
+            new HttpClient().PostAsync(uri, form).GetAwaiter().GetResult();
+
             System.Console.WriteLine("Press any key to stop the server");
             System.Console.ReadKey();
             server.Stop();
         }
+
+        private static void Server_LogEntriesChanged(object sender, NotifyCollectionChangedEventArgs eventRecordArgs)
+        {
+            System.Console.WriteLine("Server_LogEntriesChanged : {0}", eventRecordArgs.NewItems.Count);
+        }
     }
 }

examples/WireMock.Net.Service/packages.config

@@ -5,7 +5,7 @@
   <package id="Microsoft.AspNet.WebApi.Core" version="5.2.3" targetFramework="net452" />
   <package id="Microsoft.AspNet.WebApi.Owin" version="5.2.3" targetFramework="net452" />
   <package id="Microsoft.AspNet.WebApi.OwinSelfHost" version="5.2.3" targetFramework="net452" />
-  <package id="Microsoft.Owin" version="2.0.2" targetFramework="net452" />
+  <package id="Microsoft.Owin" version="4.2.2" targetFramework="net452" />
   <package id="Microsoft.Owin.Host.HttpListener" version="2.0.2" targetFramework="net452" />
   <package id="Microsoft.Owin.Hosting" version="2.0.2" targetFramework="net452" />
   <package id="Newtonsoft.Json" version="13.0.1" targetFramework="net452" />

examples/WireMock.Net.StandAlone.NETCoreApp/Program.cs

@@ -3,6 +3,7 @@ using System.IO;
 using System.Linq;
 using System.Reflection;
 using System.Threading;
+using System.Threading.Tasks;
 using log4net;
 using log4net.Config;
 using log4net.Repository;
@@ -10,71 +11,112 @@ using WireMock.RequestBuilders;
 using WireMock.ResponseBuilders;
 using WireMock.Server;
 using WireMock.Settings;
-using WireMock.Util;
 
-namespace WireMock.Net.StandAlone.NETCoreApp
+namespace WireMock.Net.StandAlone.NETCoreApp;
+
+static class Program
 {
-    static class Program
+    private static readonly ILoggerRepository LogRepository = LogManager.GetRepository(Assembly.GetEntryAssembly());
+    // private static readonly ILog Log = LogManager.GetLogger(typeof(Program));
+
+    private static int sleepTime = 30000;
+    private static WireMockServer _server;
+
+    static async Task Main(string[] args)
     {
-        private static readonly ILoggerRepository LogRepository = LogManager.GetRepository(Assembly.GetEntryAssembly());
-        // private static readonly ILog Log = LogManager.GetLogger(typeof(Program));
+        await TestAsync().ConfigureAwait(false);
+        return;
 
-        private static int sleepTime = 30000;
-        private static WireMockServer _server;
+        XmlConfigurator.Configure(LogRepository, new FileInfo("log4net.config"));
 
-        static void Main(string[] args)
+        if (!WireMockServerSettingsParser.TryParseArguments(args, out var settings, new WireMockLog4NetLogger()))
         {
-            XmlConfigurator.Configure(LogRepository, new FileInfo("log4net.config"));
-
-            if (!WireMockServerSettingsParser.TryParseArguments(args, out var settings, new WireMockLog4NetLogger()))
-            {
-                return;
-            }
-
-            settings.Logger.Debug("WireMock.Net server arguments [{0}]", string.Join(", ", args.Select(a => $"'{a}'")));
-
-            _server = WireMockServer.Start(settings);
-
-            //_server.Given(Request.Create().WithPath("/api/sap")
-            //    .UsingPost()
-            //    .WithBody((IBodyData xmlData) =>
-            //    {
-            //        //xmlData is always null
-            //        return true;
-            //    }))
-            //    .RespondWith(Response.Create().WithStatusCode(System.Net.HttpStatusCode.OK));
-
-            //_server
-            //    .Given(Request.Create()
-            //        .UsingAnyMethod())
-            //    .RespondWith(Response.Create()
-            //        .WithTransformer()
-            //        .WithBody("{{Random Type=\"Integer\" Min=100 Max=999999}} {{DateTime.Now}} {{DateTime.Now \"yyyy-MMM\"}} {{String.Format (DateTime.Now) \"MMM-dd\"}}"));
-
-            Console.WriteLine($"{DateTime.UtcNow} Press Ctrl+C to shut down");
-
-            Console.CancelKeyPress += (s, e) =>
-            {
-                Stop("CancelKeyPress");
-            };
-
-            System.Runtime.Loader.AssemblyLoadContext.Default.Unloading += ctx =>
-            {
-                Stop("AssemblyLoadContext.Default.Unloading");
-            };
-
-            while (true)
-            {
-                Console.WriteLine($"{DateTime.UtcNow} WireMock.Net server running : {_server.IsStarted}");
-                Thread.Sleep(sleepTime);
-            }
+            return;
         }
 
-        private static void Stop(string why)
+        settings.Logger.Debug("WireMock.Net server arguments [{0}]", string.Join(", ", args.Select(a => $"'{a}'")));
+
+        _server = WireMockServer.Start(settings);
+
+        //_server.Given(Request.Create().WithPath("/api/sap")
+        //    .UsingPost()
+        //    .WithBody((IBodyData xmlData) =>
+        //    {
+        //        //xmlData is always null
+        //        return true;
+        //    }))
+        //    .RespondWith(Response.Create().WithStatusCode(System.Net.HttpStatusCode.OK));
+
+        //_server
+        //    .Given(Request.Create()
+        //        .UsingAnyMethod())
+        //    .RespondWith(Response.Create()
+        //        .WithTransformer()
+        //        .WithBody("{{Random Type=\"Integer\" Min=100 Max=999999}} {{DateTime.Now}} {{DateTime.Now \"yyyy-MMM\"}} {{String.Format (DateTime.Now) \"MMM-dd\"}}"));
+
+        Console.WriteLine($"{DateTime.UtcNow} Press Ctrl+C to shut down");
+
+        Console.CancelKeyPress += (s, e) =>
         {
-            Console.WriteLine($"{DateTime.UtcNow} WireMock.Net server stopping because '{why}'");
-            _server.Stop();
-            Console.WriteLine($"{DateTime.UtcNow} WireMock.Net server stopped");
+            Stop("CancelKeyPress");
+        };
+
+        System.Runtime.Loader.AssemblyLoadContext.Default.Unloading += ctx =>
+        {
+            Stop("AssemblyLoadContext.Default.Unloading");
+        };
+
+        while (true)
+        {
+            Console.WriteLine($"{DateTime.UtcNow} WireMock.Net server running : {_server.IsStarted}");
+            Thread.Sleep(sleepTime);
         }
     }
-}
+
+    private static void Stop(string why)
+    {
+        Console.WriteLine($"{DateTime.UtcNow} WireMock.Net server stopping because '{why}'");
+        _server.Stop();
+        Console.WriteLine($"{DateTime.UtcNow} WireMock.Net server stopped");
+    }
+
+    private static async Task TestAsync()
+    {
+        for (var i = 0; i < 20; i++)
+        {
+            var server = WireMockServer.Start();
+
+            server
+                .Given(
+                    Request.Create().WithPath("/some/thing").UsingGet()
+                )
+                .RespondWith(
+                    Response.Create()
+                        .WithStatusCode(200)
+                        .WithHeader("Content-Type", "text/plain")
+                        .WithBody("Hello world! : " + i)
+                );
+
+            server
+                .Given(
+                    Request.Create().WithPath("/some/thing").UsingGet()
+                )
+                .RespondWith(
+                    Response.Create()
+                        .WithStatusCode(200)
+                        .WithHeader("Content-Type", "text/plain")
+                        .WithBody("Hello world duplicate! : " + i)
+                );
+
+            var client = server.CreateClient();
+
+            var response = await client.GetAsync($"{server.Url}/some/thing").ConfigureAwait(false);
+            var content = await response.Content.ReadAsStringAsync().ConfigureAwait(false);
+            Console.WriteLine($"counter {i} value:{content}");
+
+            server.Reset();
+            server.Dispose();
+            server.Stop();
+        }
+    }
+}

src/WireMock.Net.Abstractions/Admin/Mappings/MappingModel.cs

@@ -1,4 +1,5 @@
 using System;
+using System.Collections.Generic;
 using WireMock.Models;
 
 namespace WireMock.Admin.Mappings;
@@ -14,6 +15,11 @@ public class MappingModel
     /// </summary>
     public Guid? Guid { get; set; }
 
+    /// <summary>
+    /// The datetime when this mapping was created or updated.
+    /// </summary>
+    public DateTime? UpdatedAt { get; set; }
+
     /// <summary>
     /// Gets or sets the TimeSettings when which this mapping should be used.
     /// </summary>
@@ -79,4 +85,13 @@ public class MappingModel
     /// Fire and forget for webhooks.
     /// </summary>
     public bool? UseWebhooksFireAndForget { get; set; }
+    
+    /// <summary>
+    /// Data Object which can be used when WithTransformer is used.
+    /// e.g. lookup an path in this object using
+    /// <example>
+    /// lookup data "1"
+    /// </example>
+    /// </summary>
+    public object? Data { get; set; }
 }

src/WireMock.Net.Abstractions/Admin/Mappings/ResponseModel.cs

@@ -1,121 +1,120 @@
 using System.Collections.Generic;
 
-namespace WireMock.Admin.Mappings
+namespace WireMock.Admin.Mappings;
+
+/// <summary>
+/// ResponseModel
+/// </summary>
+[FluentBuilder.AutoGenerateBuilder]
+public class ResponseModel
 {
     /// <summary>
-    /// ResponseModel
+    /// Gets or sets the HTTP status.
     /// </summary>
-    [FluentBuilder.AutoGenerateBuilder]
-    public class ResponseModel
-    {
-        /// <summary>
-        /// Gets or sets the HTTP status.
-        /// </summary>
-        public object? StatusCode { get; set; }
+    public object? StatusCode { get; set; }
 
-        /// <summary>
-        /// Gets or sets the body destination (SameAsSource, String or Bytes).
-        /// </summary>
-        public string? BodyDestination { get; set; }
+    /// <summary>
+    /// Gets or sets the body destination (SameAsSource, String or Bytes).
+    /// </summary>
+    public string? BodyDestination { get; set; }
 
-        /// <summary>
-        /// Gets or sets the body.
-        /// </summary>
-        public string? Body { get; set; }
+    /// <summary>
+    /// Gets or sets the body.
+    /// </summary>
+    public string? Body { get; set; }
 
-        /// <summary>
-        /// Gets or sets the body (as JSON object).
-        /// </summary>
-        public object? BodyAsJson { get; set; }
+    /// <summary>
+    /// Gets or sets the body (as JSON object).
+    /// </summary>
+    public object? BodyAsJson { get; set; }
 
-        /// <summary>
-        /// Gets or sets a value indicating whether child objects to be indented according to the Newtonsoft.Json.JsonTextWriter.Indentation and Newtonsoft.Json.JsonTextWriter.IndentChar settings.
-        /// </summary>
-        public bool? BodyAsJsonIndented { get; set; }
+    /// <summary>
+    /// Gets or sets a value indicating whether child objects to be indented according to the Newtonsoft.Json.JsonTextWriter.Indentation and Newtonsoft.Json.JsonTextWriter.IndentChar settings.
+    /// </summary>
+    public bool? BodyAsJsonIndented { get; set; }
 
-        /// <summary>
-        /// Gets or sets the body (as bytearray).
-        /// </summary>
-        public byte[]? BodyAsBytes { get; set; }
+    /// <summary>
+    /// Gets or sets the body (as bytearray).
+    /// </summary>
+    public byte[]? BodyAsBytes { get; set; }
 
-        /// <summary>
-        /// Gets or sets the body as a file.
-        /// </summary>
-        public string? BodyAsFile { get; set; }
+    /// <summary>
+    /// Gets or sets the body as a file.
+    /// </summary>
+    public string? BodyAsFile { get; set; }
 
-        /// <summary>
-        /// Is the body as file cached?
-        /// </summary>
-        public bool? BodyAsFileIsCached { get; set; }
+    /// <summary>
+    /// Is the body as file cached?
+    /// </summary>
+    public bool? BodyAsFileIsCached { get; set; }
 
-        /// <summary>
-        /// Gets or sets the body encoding.
-        /// </summary>
-        public EncodingModel? BodyEncoding { get; set; }
+    /// <summary>
+    /// Gets or sets the body encoding.
+    /// </summary>
+    public EncodingModel? BodyEncoding { get; set; }
 
-        /// <summary>
-        /// Use ResponseMessage Transformer.
-        /// </summary>
-        public bool? UseTransformer { get; set; }
+    /// <summary>
+    /// Use ResponseMessage Transformer.
+    /// </summary>
+    public bool? UseTransformer { get; set; }
 
-        /// <summary>
-        /// Gets the type of the transformer.
-        /// </summary>
-        public string? TransformerType { get; set; }
+    /// <summary>
+    /// Gets the type of the transformer.
+    /// </summary>
+    public string? TransformerType { get; set; }
 
-        /// <summary>
-        /// Use the Handlebars transformer for the content from the referenced BodyAsFile.
-        /// </summary>
-        public bool? UseTransformerForBodyAsFile { get; set; }
+    /// <summary>
+    /// Use the Handlebars transformer for the content from the referenced BodyAsFile.
+    /// </summary>
+    public bool? UseTransformerForBodyAsFile { get; set; }
 
-        /// <summary>
-        /// The ReplaceNodeOptions to use when transforming a JSON node.
-        /// </summary>
-        public string? TransformerReplaceNodeOptions { get; set; }
+    /// <summary>
+    /// The ReplaceNodeOptions to use when transforming a JSON node.
+    /// </summary>
+    public string? TransformerReplaceNodeOptions { get; set; }
 
-        /// <summary>
-        /// Gets or sets the headers.
-        /// </summary>
-        public IDictionary<string, object>? Headers { get; set; }
+    /// <summary>
+    /// Gets or sets the headers.
+    /// </summary>
+    public IDictionary<string, object>? Headers { get; set; }
 
-        /// <summary>
-        /// Gets or sets the Headers (Raw).
-        /// </summary>
-        public string? HeadersRaw { get; set; }
+    /// <summary>
+    /// Gets or sets the Headers (Raw).
+    /// </summary>
+    public string? HeadersRaw { get; set; }
 
-        /// <summary>
-        /// Gets or sets the delay in milliseconds.
-        /// </summary>
-        public int? Delay { get; set; }
+    /// <summary>
+    /// Gets or sets the delay in milliseconds.
+    /// </summary>
+    public int? Delay { get; set; }
 
-        /// <summary>
-        /// Gets or sets the minimum random delay in milliseconds.
-        /// </summary>
-        public int? MinimumRandomDelay { get; set; }
+    /// <summary>
+    /// Gets or sets the minimum random delay in milliseconds.
+    /// </summary>
+    public int? MinimumRandomDelay { get; set; }
 
-        /// <summary>
-        /// Gets or sets the maximum random delay in milliseconds.
-        /// </summary>
-        public int? MaximumRandomDelay { get; set; }
+    /// <summary>
+    /// Gets or sets the maximum random delay in milliseconds.
+    /// </summary>
+    public int? MaximumRandomDelay { get; set; }
 
-        /// <summary>
-        /// Gets or sets the Proxy URL.
-        /// </summary>
-        public string? ProxyUrl { get; set; }
+    /// <summary>
+    /// Gets or sets the Proxy URL.
+    /// </summary>
+    public string? ProxyUrl { get; set; }
 
-        /// <summary>
-        /// The client X509Certificate2 Thumbprint or SubjectName to use.
-        /// </summary>
-        public string? X509Certificate2ThumbprintOrSubjectName { get; set; }
+    /// <summary>
+    /// The client X509Certificate2 Thumbprint or SubjectName to use.
+    /// </summary>
+    public string? X509Certificate2ThumbprintOrSubjectName { get; set; }
 
-        /// <summary>
-        /// Gets or sets the fault.
-        /// </summary>
-        public FaultModel? Fault { get; set; }
+    /// <summary>
+    /// Gets or sets the fault.
+    /// </summary>
+    public FaultModel? Fault { get; set; }
 
-        /// <summary>
-        /// Gets or sets the WebProxy settings.
-        /// </summary>
-        public WebProxyModel? WebProxy { get; set; }
-    }
+    /// <summary>
+    /// Gets or sets the WebProxy settings.
+    /// </summary>
+    public WebProxyModel? WebProxy { get; set; }
 }

src/WireMock.Net.Abstractions/Admin/Settings/SettingsModel.cs

@@ -96,4 +96,16 @@ public class SettingsModel
     /// Default value = "All".
     /// </summary>
     public QueryParameterMultipleValueSupport? QueryParameterMultipleValueSupport { get; set; }
+
+#if NETSTANDARD1_3_OR_GREATER || NET461
+    /// <summary>
+    /// Server client certificate mode
+    /// </summary>
+    public ClientCertificateMode ClientCertificateMode { get; set; }
+
+    /// <summary>
+    /// Whether to accept any client certificate
+    /// </summary>
+    public bool AcceptAnyClientCertificate { get; set; }
+#endif
 }

src/WireMock.Net.Abstractions/BuilderExtensions/RequestModelBuilder.cs

@@ -0,0 +1,139 @@
+using System;
+
+// ReSharper disable once CheckNamespace
+namespace WireMock.Admin.Mappings;
+
+/// <summary>
+/// RequestModelBuilder
+/// </summary>
+public partial class RequestModelBuilder
+{
+    /// <summary>
+    /// UsingConnect: add HTTP Method matching on `CONNECT`.
+    /// </summary>
+    /// <returns>The <see cref="RequestModelBuilder"/>.</returns>
+    public RequestModelBuilder UsingConnect() => WithMethods("CONNECT");
+
+    /// <summary>
+    /// UsingDelete: add HTTP Method matching on `DELETE`.
+    /// </summary>
+    /// <returns>The <see cref="RequestModelBuilder"/>.</returns>
+    public RequestModelBuilder UsingDelete() => WithMethods("DELETE");
+
+    /// <summary>
+    /// UsingGet: add HTTP Method matching on `GET`.
+    /// </summary>
+    /// <returns>The <see cref="RequestModelBuilder"/>.</returns>
+    public RequestModelBuilder UsingGet() => WithMethods("GET");
+
+    /// <summary>
+    /// UsingHead: Add HTTP Method matching on `HEAD`.
+    /// </summary>
+    /// <returns>The <see cref="RequestModelBuilder"/>.</returns>
+    public RequestModelBuilder UsingHead() => WithMethods("HEAD");
+
+    /// <summary>
+    /// UsingPost: add HTTP Method matching on `POST`.
+    /// </summary>
+    /// <returns>The <see cref="RequestModelBuilder"/>.</returns>
+    public RequestModelBuilder UsingPost() => WithMethods("POST");
+
+    /// <summary>
+    /// UsingPatch: add HTTP Method matching on `PATCH`.
+    /// </summary>
+    /// <returns>The <see cref="RequestModelBuilder"/>.</returns>
+    public RequestModelBuilder UsingPatch() => WithMethods("PATCH");
+
+    /// <summary>
+    /// UsingPut: add HTTP Method matching on `OPTIONS`.
+    /// </summary>
+    /// <returns>The <see cref="RequestModelBuilder"/>.</returns>
+    public RequestModelBuilder UsingOptions() => WithMethods("OPTIONS");
+
+    /// <summary>
+    /// UsingPut: add HTTP Method matching on `PUT`.
+    /// </summary>
+    /// <returns>The <see cref="RequestModelBuilder"/>.</returns>
+    public RequestModelBuilder UsingPut() => WithMethods("PUT");
+
+    /// <summary>
+    /// UsingTrace: add HTTP Method matching on `TRACE`.
+    /// </summary>
+    /// <returns>The <see cref="RequestModelBuilder"/>.</returns>
+    public RequestModelBuilder UsingTrace() => WithMethods("TRACE");
+
+    /// <summary>
+    /// UsingAnyMethod: add HTTP Method matching on any method.
+    /// </summary>
+    /// <returns>The <see cref="RequestModelBuilder"/>.</returns>
+    public RequestModelBuilder UsingAnyMethod() => this;
+
+    /// <summary>
+    /// Set the ClientIP.
+    /// </summary>
+    public RequestModelBuilder WithClientIP(string value) => WithClientIP(() => value);
+
+    /// <summary>
+    /// Set the ClientIP.
+    /// </summary>
+    public RequestModelBuilder WithClientIP(ClientIPModel value) => WithClientIP(() => value);
+
+    /// <summary>
+    /// Set the ClientIP.
+    /// </summary>
+    public RequestModelBuilder WithClientIP(Action<ClientIPModelBuilder> action)
+    {
+        return WithClientIP(() =>
+        {
+            var builder = new ClientIPModelBuilder();
+            action(builder);
+            return builder.Build();
+        });
+    }
+
+    /// <summary>
+    /// Set the Path.
+    /// </summary>
+    public RequestModelBuilder WithPath(string value) => WithPath(() => value);
+
+    /// <summary>
+    /// Set the Path.
+    /// </summary>
+    public RequestModelBuilder WithPath(PathModel value) => WithPath(() => value);
+
+    /// <summary>
+    /// Set the Path.
+    /// </summary>
+    public RequestModelBuilder WithPath(Action<PathModelBuilder> action)
+    {
+        return WithPath(() =>
+        {
+            var builder = new PathModelBuilder();
+            action(builder);
+            return builder.Build();
+        });
+    }
+
+    /// <summary>
+    /// Set the Url.
+    /// </summary>
+    public RequestModelBuilder WithUrl(string value) => WithUrl(() => value);
+
+    /// <summary>
+    /// Set the Url.
+    /// </summary>
+    public RequestModelBuilder WithUrl(UrlModel value) => WithUrl(() => value);
+
+    /// <summary>
+    /// Set the Url.
+    /// </summary>
+    public RequestModelBuilder WithUrl(Action<UrlModelBuilder> action)
+    {
+        return WithUrl(() =>
+        {
+            var builder = new UrlModelBuilder();
+            action(builder);
+            return builder.Build();
+        });
+    }
+}

src/WireMock.Net.Abstractions/BuilderExtensions/ResponseModelBuilder.cs

@@ -0,0 +1,36 @@
+using System;
+using System.Net;
+
+// ReSharper disable once CheckNamespace
+namespace WireMock.Admin.Mappings;
+
+/// <summary>
+/// ResponseModelBuilder
+/// </summary>
+public partial class ResponseModelBuilder
+{
+    /// <summary>
+    /// Set the StatusCode.
+    /// </summary>
+    public ResponseModelBuilder WithStatusCode(int value) => WithStatusCode(() => value);
+
+    /// <summary>
+    /// Set the StatusCode.
+    /// </summary>
+    public ResponseModelBuilder WithStatusCode(HttpStatusCode value) => WithStatusCode(() => value);
+
+    /// <summary>
+    /// Set the Delay.
+    /// </summary>
+    public ResponseModelBuilder WithDelay(TimeSpan value) => WithDelay((int) value.TotalMilliseconds);
+
+    /// <summary>
+    /// Set the MinimumRandomDelay.
+    /// </summary>
+    public ResponseModelBuilder WithMinimumRandomDelay(TimeSpan value) => WithMinimumRandomDelay((int)value.TotalMilliseconds);
+
+    /// <summary>
+    /// Set the MaximumRandomDelay.
+    /// </summary>
+    public ResponseModelBuilder WithMaximumRandomDelay(TimeSpan value) => WithMaximumRandomDelay((int)value.TotalMilliseconds);
+}

src/WireMock.Net.Abstractions/IRequestMessage.cs

@@ -1,5 +1,8 @@
 using System;
 using System.Collections.Generic;
+#if NETSTANDARD1_3_OR_GREATER || NET461
+using System.Security.Cryptography.X509Certificates;
+#endif
 using WireMock.Types;
 using WireMock.Util;
 
@@ -75,6 +78,11 @@ public interface IRequestMessage
     /// </summary>
     IDictionary<string, WireMockList<string>>? Query { get; }
 
+    /// <summary>
+    /// Gets the query.
+    /// </summary>
+    IDictionary<string, WireMockList<string>>? QueryIgnoreCase { get; }
+
     /// <summary>
     /// Gets the raw query.
     /// </summary>
@@ -134,4 +142,11 @@ public interface IRequestMessage
     /// Gets the origin
     /// </summary>
     string Origin { get; }
+
+#if NETSTANDARD1_3_OR_GREATER || NET461
+    /// <summary>
+    /// Gets the connection's client certificate
+    /// </summary>
+    X509Certificate2? ClientCertificate { get; }
+#endif
 }

src/WireMock.Net.Abstractions/IResponseMessage.cs

@@ -44,7 +44,7 @@ public interface IResponseMessage
     /// Gets or sets the status code.
     /// </summary>
     object? StatusCode { get; }
-
+    
     /// <summary>
     /// Adds the header.
     /// </summary>

src/WireMock.Net.Abstractions/Models/IBodyData.cs

@@ -1,3 +1,4 @@
+using System.Collections.Generic;
 using System.Text;
 using WireMock.Types;
 
@@ -38,6 +39,11 @@ public interface IBodyData
     /// </summary>
     string? BodyAsString { get; set; }
 
+    /// <summary>
+    /// The body as Form UrlEncoded dictionary.
+    /// </summary>
+    IDictionary<string, string>? BodyAsFormUrlEncoded { get; set; }
+
     /// <summary>
     /// The detected body type (detection based on body content).
     /// </summary>

src/WireMock.Net.Abstractions/Server/IWireMockServer.cs

@@ -3,212 +3,227 @@ using System.Collections.Generic;
 using System.Collections.Specialized;
 using WireMock.Admin.Mappings;
 using WireMock.Logging;
+using WireMock.Types;
 
-namespace WireMock.Server
+namespace WireMock.Server;
+
+/// <summary>
+/// The fluent mock server interface.
+/// </summary>
+public interface IWireMockServer : IDisposable
 {
     /// <summary>
-    /// The fluent mock server interface.
+    /// Gets a value indicating whether this server is started.
     /// </summary>
-    public interface IWireMockServer : IDisposable
-    {
-        /// <summary>
-        /// Gets a value indicating whether this server is started.
-        /// </summary>
-        bool IsStarted { get; }
+    bool IsStarted { get; }
 
-        /// <summary>
-        /// Gets the request logs.
-        /// </summary>
-        IEnumerable<ILogEntry> LogEntries { get; }
+    /// <summary>
+    /// Gets the request logs.
+    /// </summary>
+    IEnumerable<ILogEntry> LogEntries { get; }
 
-        /// <summary>
-        /// Gets the mappings as MappingModels.
-        /// </summary>
-        IEnumerable<MappingModel> MappingModels { get; }
+    /// <summary>
+    /// Gets the mappings as MappingModels.
+    /// </summary>
+    IEnumerable<MappingModel> MappingModels { get; }
 
-        // <summary>
-        // Gets the mappings.
-        // </summary>
-        //[PublicAPI]
-        //IEnumerable<IMapping> Mappings { get; }
+    // <summary>
+    // Gets the mappings.
+    // </summary>
+    //[PublicAPI]
+    //IEnumerable<IMapping> Mappings { get; }
 
-        /// <summary>
-        /// Gets the ports.
-        /// </summary>
-        List<int> Ports { get; }
+    /// <summary>
+    /// Gets the ports.
+    /// </summary>
+    List<int> Ports { get; }
 
-        /// <summary>
-        /// Gets the first port.
-        /// </summary>
-        int Port { get; }
+    /// <summary>
+    /// Gets the first port.
+    /// </summary>
+    int Port { get; }
 
-        /// <summary>
-        /// Gets the urls.
-        /// </summary>
-        string[] Urls { get; }
+    /// <summary>
+    /// Gets the urls.
+    /// </summary>
+    string[] Urls { get; }
 
-        /// <summary>
-        /// Gets the first url.
-        /// </summary>
-        string? Url { get; }
+    /// <summary>
+    /// Gets the first url.
+    /// </summary>
+    string? Url { get; }
 
-        /// <summary>
-        /// Gets the consumer.
-        /// </summary>
-        string? Consumer { get; }
+    /// <summary>
+    /// Gets the consumer.
+    /// </summary>
+    string? Consumer { get; }
 
-        /// <summary>
-        /// Gets the provider.
-        /// </summary>
-        string? Provider { get; }
+    /// <summary>
+    /// Gets the provider.
+    /// </summary>
+    string? Provider { get; }
 
-        //ConcurrentDictionary<string, ScenarioState> Scenarios { get; }
+    //ConcurrentDictionary<string, ScenarioState> Scenarios { get; }
 
-        /// <summary>
-        /// Occurs when [log entries changed].
-        /// </summary>
-        event NotifyCollectionChangedEventHandler LogEntriesChanged;
+    /// <summary>
+    /// Occurs when [log entries changed].
+    /// </summary>
+    event NotifyCollectionChangedEventHandler LogEntriesChanged;
 
-        /// <summary>
-        /// Adds a 'catch all mapping'
-        /// 
-        /// - matches all Paths and any Methods
-        /// - priority is set to 1000
-        /// - responds with a 404 "No matching mapping found"
-        /// </summary>
-        void AddCatchAllMapping();
+    /// <summary>
+    /// Adds a 'catch all mapping'
+    /// 
+    /// - matches all Paths and any Methods
+    /// - priority is set to 1000
+    /// - responds with a 404 "No matching mapping found"
+    /// </summary>
+    void AddCatchAllMapping();
 
-        /// <summary>
-        /// The add request processing delay.
-        /// </summary>
-        /// <param name="delay">The delay.</param>
-        void AddGlobalProcessingDelay(TimeSpan delay);
+    /// <summary>
+    /// The add request processing delay.
+    /// </summary>
+    /// <param name="delay">The delay.</param>
+    void AddGlobalProcessingDelay(TimeSpan delay);
 
-        /// <summary>
-        /// Allows the partial mapping.
-        /// </summary>
-        void AllowPartialMapping(bool allow = true);
+    /// <summary>
+    /// Allows the partial mapping.
+    /// </summary>
+    void AllowPartialMapping(bool allow = true);
 
-        /// <summary>
-        /// Deletes a LogEntry.
-        /// </summary>
-        /// <param name="guid">The unique identifier.</param>
-        bool DeleteLogEntry(Guid guid);
+    /// <summary>
+    /// Deletes a LogEntry.
+    /// </summary>
+    /// <param name="guid">The unique identifier.</param>
+    bool DeleteLogEntry(Guid guid);
 
-        /// <summary>
-        /// Deletes the mapping.
-        /// </summary>
-        /// <param name="guid">The unique identifier.</param>
-        bool DeleteMapping(Guid guid);
+    /// <summary>
+    /// Deletes the mapping.
+    /// </summary>
+    /// <param name="guid">The unique identifier.</param>
+    bool DeleteMapping(Guid guid);
 
-        //IEnumerable<LogEntry> FindLogEntries([NotNull] params IRequestMatcher[] matchers);
+    //IEnumerable<LogEntry> FindLogEntries([NotNull] params IRequestMatcher[] matchers);
 
-        // IRespondWithAProvider Given(IRequestMatcher requestMatcher, bool saveToFile = false);
+    // IRespondWithAProvider Given(IRequestMatcher requestMatcher, bool saveToFile = false);
 
-        /// <summary>
-        /// Reads a static mapping file and adds or updates a single mapping.
-        /// 
-        /// Calling this method manually forces WireMock.Net to read and apply the specified static mapping file.
-        /// </summary>
-        /// <param name="path">The path to the static mapping file.</param>
-        bool ReadStaticMappingAndAddOrUpdate(string path);
+    /// <summary>
+    /// Reads a static mapping file and adds or updates a single mapping.
+    /// 
+    /// Calling this method manually forces WireMock.Net to read and apply the specified static mapping file.
+    /// </summary>
+    /// <param name="path">The path to the static mapping file.</param>
+    bool ReadStaticMappingAndAddOrUpdate(string path);
 
-        /// <summary>
-        /// Reads the static mappings from a folder.
-        /// (This method is also used when WireMockServerSettings.ReadStaticMappings is set to true.
-        /// 
-        /// Calling this method manually forces WireMock.Net to read and apply all static mapping files in the specified folder.
-        /// </summary>
-        /// <param name="folder">The optional folder. If not defined, use {CurrentFolder}/__admin/mappings</param>
-        void ReadStaticMappings(string? folder = null);
+    /// <summary>
+    /// Reads the static mappings from a folder.
+    /// (This method is also used when WireMockServerSettings.ReadStaticMappings is set to true.
+    /// 
+    /// Calling this method manually forces WireMock.Net to read and apply all static mapping files in the specified folder.
+    /// </summary>
+    /// <param name="folder">The optional folder. If not defined, use {CurrentFolder}/__admin/mappings</param>
+    void ReadStaticMappings(string? folder = null);
 
-        /// <summary>
-        /// Removes the authentication.
-        /// </summary>
-        void RemoveAuthentication();
+    /// <summary>
+    /// Removes the authentication.
+    /// </summary>
+    void RemoveAuthentication();
 
-        /// <summary>
-        /// Resets LogEntries and Mappings.
-        /// </summary>
-        void Reset();
+    /// <summary>
+    /// Resets LogEntries and Mappings.
+    /// </summary>
+    void Reset();
 
-        /// <summary>
-        /// Resets the Mappings.
-        /// </summary>
-        void ResetMappings();
+    /// <summary>
+    /// Resets the Mappings.
+    /// </summary>
+    void ResetMappings();
 
-        /// <summary>
-        /// Resets all Scenarios.
-        /// </summary>
-        void ResetScenarios();
+    /// <summary>
+    /// Resets all Scenarios.
+    /// </summary>
+    void ResetScenarios();
 
-        /// <summary>
-        /// Resets a specific Scenario by the name.
-        /// </summary>
-        bool ResetScenario(string name);
+    /// <summary>
+    /// Resets a specific Scenario by the name.
+    /// </summary>
+    bool ResetScenario(string name);
 
-        /// <summary>
-        /// Resets the LogEntries.
-        /// </summary>
-        void ResetLogEntries();
+    /// <summary>
+    /// Resets the LogEntries.
+    /// </summary>
+    void ResetLogEntries();
 
-        /// <summary>
-        /// Saves the static mappings.
-        /// </summary>
-        /// <param name="folder">The optional folder. If not defined, use {CurrentFolder}/__admin/mappings</param>
-        void SaveStaticMappings(string? folder = null);
+    /// <summary>
+    /// Saves the static mappings.
+    /// </summary>
+    /// <param name="folder">The optional folder. If not defined, use {CurrentFolder}/__admin/mappings</param>
+    void SaveStaticMappings(string? folder = null);
 
-        /// <summary>
-        /// Sets the basic authentication.
-        /// </summary>
-        /// <param name="tenant">The Tenant.</param>
-        /// <param name="audience">The Audience or Resource.</param>
-        void SetAzureADAuthentication(string tenant, string audience);
+    /// <summary>
+    /// Sets the basic authentication.
+    /// </summary>
+    /// <param name="tenant">The Tenant.</param>
+    /// <param name="audience">The Audience or Resource.</param>
+    void SetAzureADAuthentication(string tenant, string audience);
 
-        /// <summary>
-        /// Sets the basic authentication.
-        /// </summary>
-        /// <param name="username">The username.</param>
-        /// <param name="password">The password.</param>
-        void SetBasicAuthentication(string username, string password);
+    /// <summary>
+    /// Sets the basic authentication.
+    /// </summary>
+    /// <param name="username">The username.</param>
+    /// <param name="password">The password.</param>
+    void SetBasicAuthentication(string username, string password);
 
-        /// <summary>
-        /// Sets the maximum RequestLog count.
-        /// </summary>
-        /// <param name="maxRequestLogCount">The maximum RequestLog count.</param>
-        void SetMaxRequestLogCount(int? maxRequestLogCount);
+    /// <summary>
+    /// Sets the maximum RequestLog count.
+    /// </summary>
+    /// <param name="maxRequestLogCount">The maximum RequestLog count.</param>
+    void SetMaxRequestLogCount(int? maxRequestLogCount);
 
-        /// <summary>
-        /// Sets RequestLog expiration in hours.
-        /// </summary>
-        /// <param name="requestLogExpirationDuration">The RequestLog expiration in hours.</param>
-        void SetRequestLogExpirationDuration(int? requestLogExpirationDuration);
+    /// <summary>
+    /// Sets RequestLog expiration in hours.
+    /// </summary>
+    /// <param name="requestLogExpirationDuration">The RequestLog expiration in hours.</param>
+    void SetRequestLogExpirationDuration(int? requestLogExpirationDuration);
 
-        /// <summary>
-        /// Stop this server.
-        /// </summary>
-        void Stop();
+    /// <summary>
+    /// Stop this server.
+    /// </summary>
+    void Stop();
 
-        /// <summary>
-        /// Watches the static mappings for changes.
-        /// </summary>
-        /// <param name="folder">The optional folder. If not defined, use {CurrentFolder}/__admin/mappings</param>
-        void WatchStaticMappings(string? folder = null);
+    /// <summary>
+    /// Watches the static mappings for changes.
+    /// </summary>
+    /// <param name="folder">The optional folder. If not defined, use {CurrentFolder}/__admin/mappings</param>
+    void WatchStaticMappings(string? folder = null);
 
-        /// <summary>
-        /// Register the mappings (via <see cref="MappingModel"/>).
-        /// 
-        /// This can be used if you have 1 or more <see cref="MappingModel"/> defined and want to register these in WireMock.Net directly instead of using the fluent syntax.
-        /// </summary>
-        /// <param name="mappings">The MappingModels</param>
-        IWireMockServer WithMapping(params MappingModel[] mappings);
+    /// <summary>
+    /// Register the mappings (via <see cref="MappingModel"/>).
+    /// 
+    /// This can be used if you have 1 or more <see cref="MappingModel"/> defined and want to register these in WireMock.Net directly instead of using the fluent syntax.
+    /// </summary>
+    /// <param name="mappings">The MappingModels</param>
+    IWireMockServer WithMapping(params MappingModel[] mappings);
 
-        /// <summary>
-        /// Register the mappings (via json string).
-        /// 
-        /// This can be used if you the mappings as json string defined and want to register these in WireMock.Net directly instead of using the fluent syntax.
-        /// </summary>
-        /// <param name="mappings">The mapping(s) as json string.</param>
-        IWireMockServer WithMapping(string mappings);
-    }
+    /// <summary>
+    /// Register the mappings (via json string).
+    /// 
+    /// This can be used if you the mappings as json string defined and want to register these in WireMock.Net directly instead of using the fluent syntax.
+    /// </summary>
+    /// <param name="mappings">The mapping(s) as json string.</param>
+    IWireMockServer WithMapping(string mappings);
+
+    /// <summary>
+    /// Get the C# code for a mapping.
+    /// </summary>
+    /// <param name="guid">The Mapping Guid.</param>
+    /// <param name="converterType">The <see cref="MappingConverterType"/></param>
+    /// <returns>C# code (null in case the mapping is not found)</returns>
+    string? MappingToCSharpCode(Guid guid, MappingConverterType converterType);
+
+    /// <summary>
+    /// Get the C# code for all mappings.
+    /// </summary>
+    /// <param name="converterType">The <see cref="MappingConverterType"/></param>
+    /// <returns>C# code</returns>
+    public string MappingsToCSharpCode(MappingConverterType converterType);
 }

src/WireMock.Net.Abstractions/Types/BodyType.cs

@@ -1,38 +1,42 @@
-namespace WireMock.Types
+namespace WireMock.Types;
+
+/// <summary>
+/// The BodyType
+/// </summary>
+public enum BodyType
 {
     /// <summary>
-    /// The BodyType
+    /// No body present
     /// </summary>
-    public enum BodyType
-    {
-        /// <summary>
-        /// No body present
-        /// </summary>
-        None,
+    None,
 
-        /// <summary>
-        /// Body is a String
-        /// </summary>
-        String,
+    /// <summary>
+    /// Body is a String
+    /// </summary>
+    String,
 
-        /// <summary>
-        /// Body is a Json object
-        /// </summary>
-        Json,
+    /// <summary>
+    /// Body is a Json object
+    /// </summary>
+    Json,
 
-        /// <summary>
-        /// Body is a Byte array
-        /// </summary>
-        Bytes,
+    /// <summary>
+    /// Body is a Byte array
+    /// </summary>
+    Bytes,
 
-        /// <summary>
-        /// Body is a File
-        /// </summary>
-        File,
+    /// <summary>
+    /// Body is a File
+    /// </summary>
+    File,
 
-        /// <summary>
-        /// Body is a MultiPart
-        /// </summary>
-        MultiPart
-    }
+    /// <summary>
+    /// Body is a MultiPart
+    /// </summary>
+    MultiPart,
+
+    /// <summary>
+    /// Body is a String which is x-www-form-urlencoded.
+    /// </summary>
+    FormUrlEncoded
 }

src/WireMock.Net.Abstractions/Types/ClientCertificateMode.cs

@@ -0,0 +1,31 @@
+namespace WireMock.Types;
+
+#if NETSTANDARD1_3_OR_GREATER || NET461
+/// <summary>
+/// Describes the client certificate requirements for a HTTPS connection.
+/// This enum is the same as https://learn.microsoft.com/en-us/dotnet/api/microsoft.aspnetcore.server.kestrel.https.clientcertificatemode
+/// </summary>
+public enum ClientCertificateMode
+{
+    /// <summary>
+    /// A client certificate is not required and will not be requested from clients.
+    /// </summary>
+    NoCertificate,
+
+    /// <summary>
+    /// A client certificate will be requested; however, authentication will not fail if a certificate is not provided by the client.
+    /// </summary>
+    AllowCertificate,
+
+    /// <summary>
+    /// A client certificate will be requested, and the client must provide a valid certificate for authentication to succeed.
+    /// </summary>
+    RequireCertificate,
+
+    /// <summary>
+    /// A client certificate is not required and will not be requested from clients at the start of the connection.
+    /// It may be requested by the application later.
+    /// </summary>
+    DelayCertificate,
+}
+#endif

src/WireMock.Net.Abstractions/Types/MappingConverterType.cs

@@ -0,0 +1,11 @@
+namespace WireMock.Types;
+
+/// <summary>
+/// 
+/// </summary>
+public enum MappingConverterType
+{
+    Server,
+
+    Builder
+}

src/WireMock.Net.Abstractions/Types/ReplaceNodeOptions.cs

@@ -1,36 +1,25 @@
-using System;
+namespace WireMock.Types;
 
-namespace WireMock.Types
+/// <summary>
+/// Logic to use when replace a JSON node using the Transformer.
+/// </summary>
+public enum ReplaceNodeOptions
 {
     /// <summary>
-    /// Flags to use when replace a JSON node using the Transformer.
+    /// Try to evaluate a templated value.
+    /// In case this is valid, return the value and if the value can be converted to a primitive type, use that value.
     /// </summary>
-    [Flags]
-    public enum ReplaceNodeOptions
-    {
-        /// <summary>
-        /// Default
-        /// </summary>
-        None = 0
+    EvaluateAndTryToConvert = 0,
 
-        ///// <summary>
-        ///// Replace boolean string value to a real boolean value. (This is used by default to maintain backward compatibility.)
-        ///// </summary>
-        //Bool = 0b00000001,
+    /// <summary>
+    /// Try to evaluate a templated value.
+    /// In case this is valid, return the value, else fallback to the parse behavior.
+    /// </summary>
+    Evaluate = 1,
 
-        ///// <summary>
-        ///// Replace integer string value to a real integer value.
-        ///// </summary>
-        //Integer = 0b00000010,
-
-        ///// <summary>
-        ///// Replace long string value to a real long value.
-        ///// </summary>
-        //Long = 0b00000100,
-
-        ///// <summary>
-        ///// Replace all string values to a real values.
-        ///// </summary>
-        //All = Bool | Integer | Long
-    }
+    /// <summary>
+    /// Parse templated string to a templated string.
+    /// (keep a templated string value as string value).
+    /// </summary>
+    Parse = 2
 }

src/WireMock.Net.Abstractions/Types/TransformerType.cs

@@ -1,23 +1,22 @@
-namespace WireMock.Types
+namespace WireMock.Types;
+
+/// <summary>
+/// The ResponseMessage Transformers
+/// </summary>
+public enum TransformerType
 {
     /// <summary>
-    /// The ResponseMessage Transformers
+    /// https://github.com/Handlebars-Net/Handlebars.Net
     /// </summary>
-    public enum TransformerType
-    {
-        /// <summary>
-        /// https://github.com/Handlebars-Net/Handlebars.Net
-        /// </summary>
-        Handlebars,
+    Handlebars,
 
-        /// <summary>
-        /// https://github.com/scriban/scriban : default
-        /// </summary>
-        Scriban,
+    /// <summary>
+    /// https://github.com/scriban/scriban : default
+    /// </summary>
+    Scriban,
 
-        /// <summary>
-        /// https://github.com/scriban/scriban : DotLiquid
-        /// </summary>
-        ScribanDotLiquid
-    }
+    /// <summary>
+    /// https://github.com/scriban/scriban : DotLiquid
+    /// </summary>
+    ScribanDotLiquid
 }

src/WireMock.Net.Abstractions/Types/WireMockList.cs

@@ -1,4 +1,5 @@
 using System.Collections.Generic;
+using System.Linq;
 
 namespace WireMock.Types;
 
@@ -63,7 +64,8 @@ public class WireMockList<T> : List<T>
                 return this[0]?.ToString();
 
             default:
-                return base.ToString();
+                var strings = this.Select(x => x as string ?? x?.ToString());
+                return string.Join(", ", strings);
         }
     }
 }

src/WireMock.Net.Abstractions/WireMock.Net.Abstractions.csproj

@@ -4,7 +4,7 @@
         <Description>Commonly used models, enumerations and types.</Description>
         <AssemblyTitle>WireMock.Net.Abstractions</AssemblyTitle>
         <Authors>Stef Heyenrath</Authors>
-        <TargetFrameworks>net45;net451;netstandard1.0;netstandard2.0;netstandard2.1</TargetFrameworks>
+        <TargetFrameworks>net45;net451;net461;netstandard1.0;netstandard1.3;netstandard2.0;netstandard2.1</TargetFrameworks>
         <GenerateDocumentationFile>true</GenerateDocumentationFile>
         <NoWarn>$(NoWarn);1591;8603</NoWarn>
         <AssemblyName>WireMock.Net.Abstractions</AssemblyName>
@@ -41,11 +41,15 @@
         </PackageReference>
     </ItemGroup>
 
-    <!--<ItemGroup Condition="'$(TargetFramework)' == 'net45'">
-        <PackageReference Include="Nullable" Version="1.2.1">
+    <ItemGroup Condition="$(TargetFramework.StartsWith('netstandard')) and '$(TargetFramework)' != 'netstandard1.0'">
+      <PackageReference Include="System.Security.Cryptography.X509Certificates" Version="4.3.0" />
+    </ItemGroup>
+
+    <ItemGroup Condition="'$(TargetFramework)' == 'net461'">
+        <PackageReference Include="Microsoft.NETFramework.ReferenceAssemblies.net46" Version="1.0.2">
             <PrivateAssets>all</PrivateAssets>
             <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
         </PackageReference>
-    </ItemGroup>-->
+    </ItemGroup>
 
 </Project>

src/WireMock.Net.RestClient/Builders/ApiMappingModelBuilder.cs

@@ -0,0 +1,58 @@
+using System;
+using System.Collections.Generic;
+using System.Threading;
+using System.Threading.Tasks;
+using Stef.Validation;
+using WireMock.Admin.Mappings;
+
+namespace WireMock.Client.Builders;
+
+/// <summary>
+/// AdminApiMappingBuilder
+/// </summary>
+public class AdminApiMappingBuilder
+{
+    private readonly List<Action<MappingModelBuilder>> _mappingModelBuilderActions = new();
+
+    private readonly IWireMockAdminApi _api;
+
+    /// <summary>
+    /// AdminApiMappingBuilder
+    /// </summary>
+    /// <param name="api">The <see cref="IWireMockAdminApi"/>.</param>
+    public AdminApiMappingBuilder(IWireMockAdminApi api)
+    {
+        _api = Guard.NotNull(api);
+    }
+
+    /// <summary>
+    /// The Given
+    /// </summary>
+    /// <param name="mappingModelBuilderAction">The action.</param>
+    public void Given(Action<MappingModelBuilder> mappingModelBuilderAction)
+    {
+        _mappingModelBuilderActions.Add(Guard.NotNull(mappingModelBuilderAction));
+    }
+
+    /// <summary>
+    /// Build the mappings and post these using the <see cref="IWireMockAdminApi"/> to the WireMock.Net server.
+    /// </summary>
+    /// <param name="cancellationToken">The optional CancellationToken.</param>
+    /// <returns><see cref="StatusModel"/></returns>
+    public Task<StatusModel> BuildAndPostAsync(CancellationToken cancellationToken = default)
+    {
+        var modelMappings = new List<MappingModel>();
+
+        foreach (var mappingModelBuilderAction in _mappingModelBuilderActions)
+        {
+            cancellationToken.ThrowIfCancellationRequested();
+
+            var mappingModelBuilder = new MappingModelBuilder();
+            mappingModelBuilderAction(mappingModelBuilder);
+
+            modelMappings.Add(mappingModelBuilder.Build());
+        }
+
+        return _api.PostMappingsAsync(modelMappings, cancellationToken);
+    }
+}

src/WireMock.Net.RestClient/Extensions/ResponseModelBuilderExtensions.cs

@@ -0,0 +1,46 @@
+using System.Text;
+using JsonConverter.Abstractions;
+using JsonConverter.Newtonsoft.Json;
+using WireMock.Admin.Mappings;
+
+namespace WireMock.Client.Extensions;
+
+/// <summary>
+/// ResponseModelBuilder
+/// </summary>
+public static class ResponseModelBuilderExtensions
+{
+    private static readonly Encoding Utf8NoBom = new UTF8Encoding(false);
+    private static readonly IJsonConverter JsonConverter = new NewtonsoftJsonConverter();
+
+    /// <summary>
+    /// WithBodyAsJson
+    /// </summary>
+    /// <param name="builder">The ResponseModelBuilder.</param>
+    /// <param name="body">The body.</param>
+    /// <param name="encoding">The body encoding.</param>
+    /// <param name="indented">Define whether child objects to be indented.</param>
+    public static ResponseModelBuilder WithBodyAsJson(this ResponseModelBuilder builder, object body, Encoding? encoding = null, bool? indented = null)
+    {
+        return builder.WithBodyAsBytes(() =>
+        {
+            var options = new JsonConverterOptions
+            {
+                WriteIndented = indented == true
+            };
+            var jsonBody = JsonConverter.Serialize(body, options);
+            return (encoding ?? Utf8NoBom).GetBytes(jsonBody);
+        });
+    }
+
+    /// <summary>
+    /// WithBodyAsJson
+    /// </summary>
+    /// <param name="builder">The ResponseModelBuilder.</param>
+    /// <param name="body">The body.</param>
+    /// <param name="indented">Define whether child objects to be indented.</param>
+    public static ResponseModelBuilder WithBodyAsJson(this ResponseModelBuilder builder, object body, bool indented)
+    {
+        return builder.WithBodyAsJson(body, null, indented);
+    }
+}

src/WireMock.Net.RestClient/Extensions/WireMockAdminApiExtensions.cs

@@ -0,0 +1,19 @@
+using WireMock.Client.Builders;
+
+namespace WireMock.Client.Extensions;
+
+/// <summary>
+/// Some extensions for <see cref="IWireMockAdminApi"/>.
+/// </summary>
+public static class WireMockAdminApiExtensions
+{
+    /// <summary>
+    /// Get a new <see cref="AdminApiMappingBuilder"/> for the <see cref="IWireMockAdminApi"/>.
+    /// </summary>
+    /// <param name="api">See <see cref="IWireMockAdminApi"/>.</param>
+    /// <returns></returns>
+    public static AdminApiMappingBuilder GetMappingBuilder(this IWireMockAdminApi api)
+    {
+        return new AdminApiMappingBuilder(api);
+    }
+}

src/WireMock.Net.RestClient/IWireMockAdminApi.cs

@@ -1,233 +1,283 @@
-using RestEase;
 using System;
 using System.Collections.Generic;
 using System.Net.Http.Headers;
+using System.Threading;
 using System.Threading.Tasks;
+using RestEase;
 using WireMock.Admin.Mappings;
 using WireMock.Admin.Requests;
 using WireMock.Admin.Scenarios;
 using WireMock.Admin.Settings;
+using WireMock.Types;
 
-namespace WireMock.Client
+namespace WireMock.Client;
+
+/// <summary>
+/// The RestEase interface which defines all admin commands.
+/// </summary>
+[BasePath("__admin")]
+public interface IWireMockAdminApi
 {
     /// <summary>
-    /// The RestEase interface which defines all admin commands.
+    /// Authentication header
     /// </summary>
-    [BasePath("__admin")]
-    public interface IWireMockAdminApi
-    {
-        /// <summary>
-        /// Authentication header
-        /// </summary>
-        [Header("Authorization")]
-        AuthenticationHeaderValue Authorization { get; set; }
+    [Header("Authorization")]
+    AuthenticationHeaderValue Authorization { get; set; }
 
-        /// <summary>
-        /// Get the settings.
-        /// </summary>
-        /// <returns>SettingsModel</returns>
-        [Get("settings")]
-        Task<SettingsModel> GetSettingsAsync();
+    /// <summary>
+    /// Get the settings.
+    /// </summary>
+    /// <returns>SettingsModel</returns>
+    [Get("settings")]
+    Task<SettingsModel> GetSettingsAsync();
 
-        /// <summary>
-        /// Update the settings.
-        /// </summary>
-        /// <param name="settings">SettingsModel</param>
-        [Put("settings")]
-        [Header("Content-Type", "application/json")]
-        Task<StatusModel> PutSettingsAsync([Body] SettingsModel settings);
+    /// <summary>
+    /// Update the settings.
+    /// </summary>
+    /// <param name="settings">SettingsModel</param>
+    /// <param name="cancellationToken">The optional cancellationToken.</param>
+    [Put("settings")]
+    [Header("Content-Type", "application/json")]
+    Task<StatusModel> PutSettingsAsync([Body] SettingsModel settings, CancellationToken cancellationToken = default);
 
-        /// <summary>
-        /// Update the settings
-        /// </summary>
-        /// <param name="settings">SettingsModel</param>
-        [Post("settings")]
-        [Header("Content-Type", "application/json")]
-        Task<StatusModel> PostSettingsAsync([Body] SettingsModel settings);
+    /// <summary>
+    /// Update the settings
+    /// </summary>
+    /// <param name="settings">SettingsModel</param>
+    /// <param name="cancellationToken">The optional cancellationToken.</param>
+    [Post("settings")]
+    [Header("Content-Type", "application/json")]
+    Task<StatusModel> PostSettingsAsync([Body] SettingsModel settings, CancellationToken cancellationToken = default);
 
-        /// <summary>
-        /// Get the mappings.
-        /// </summary>
-        /// <returns>MappingModels</returns>
-        [Get("mappings")]
-        Task<IList<MappingModel>> GetMappingsAsync();
+    /// <summary>
+    /// Get the mappings.
+    /// </summary>
+    /// <returns>MappingModels</returns>
+    /// <param name="cancellationToken">The optional cancellationToken.</param>
+    [Get("mappings")]
+    Task<IList<MappingModel>> GetMappingsAsync(CancellationToken cancellationToken = default);
 
-        /// <summary>
-        /// Add a new mapping.
-        /// </summary>
-        /// <param name="mapping">MappingModel</param>
-        [Post("mappings")]
-        [Header("Content-Type", "application/json")]
-        Task<StatusModel> PostMappingAsync([Body] MappingModel mapping);
+    /// <summary>
+    /// Get the C# code from all mappings
+    /// </summary>
+    /// <returns>C# code</returns>
+    /// <param name="mappingConverterType">The <see cref="MappingConverterType"/>, default is Server.</param>
+    /// <param name="cancellationToken">The optional cancellationToken.</param>
+    [Get("mappings/code")]
+    Task<string> GetMappingsCodeAsync([Query] MappingConverterType mappingConverterType = MappingConverterType.Server, CancellationToken cancellationToken = default);
 
-        /// <summary>
-        /// Add new mappings.
-        /// </summary>
-        /// <param name="mappings">MappingModels</param>
-        [Post("mappings")]
-        [Header("Content-Type", "application/json")]
-        Task<StatusModel> PostMappingsAsync([Body] IList<MappingModel> mappings);
+    /// <summary>
+    /// Add a new mapping.
+    /// </summary>
+    /// <param name="mapping">MappingModel</param>
+    /// <param name="cancellationToken">The optional cancellationToken.</param>
+    [Post("mappings")]
+    [Header("Content-Type", "application/json")]
+    Task<StatusModel> PostMappingAsync([Body] MappingModel mapping, CancellationToken cancellationToken = default);
 
-        /// <summary>
-        /// Delete all mappings.
-        /// </summary>
-        [Delete("mappings")]
-        Task<StatusModel> DeleteMappingsAsync();
+    /// <summary>
+    /// Add new mappings.
+    /// </summary>
+    /// <param name="mappings">MappingModels</param>
+    /// <param name="cancellationToken">The optional cancellationToken.</param>
+    [Post("mappings")]
+    [Header("Content-Type", "application/json")]
+    Task<StatusModel> PostMappingsAsync([Body] IList<MappingModel> mappings, CancellationToken cancellationToken = default);
 
-        /// <summary>
-        /// Delete mappings according to GUIDs
-        /// </summary>
-        /// <param name="mappings">MappingModels</param>
-        [Delete("mappings")]
-        [Header("Content-Type", "application/json")]
-        Task<StatusModel> DeleteMappingsAsync([Body] IList<MappingModel> mappings);
+    /// <summary>
+    /// Delete all mappings.
+    /// </summary>
+    /// <param name="cancellationToken">The optional cancellationToken.</param>
+    [Delete("mappings")]
+    Task<StatusModel> DeleteMappingsAsync(CancellationToken cancellationToken = default);
 
-        /// <summary>
-        /// Delete (reset) all mappings.
-        /// </summary>
-        /// <param name="reloadStaticMappings">A value indicating whether to reload the static mappings after the reset.</param>
-        [Post("mappings/reset")]
-        Task<StatusModel> ResetMappingsAsync(bool? reloadStaticMappings = false);
+    /// <summary>
+    /// Delete mappings according to GUIDs
+    /// </summary>
+    /// <param name="mappings">MappingModels</param>
+    /// <param name="cancellationToken">The optional cancellationToken.</param>
+    [Delete("mappings")]
+    [Header("Content-Type", "application/json")]
+    Task<StatusModel> DeleteMappingsAsync([Body] IList<MappingModel> mappings, CancellationToken cancellationToken = default);
 
-        /// <summary>
-        /// Get a mapping based on the guid
-        /// </summary>
-        /// <param name="guid">The Guid</param>
-        /// <returns>MappingModel</returns>
-        [Get("mappings/{guid}")]
-        Task<MappingModel> GetMappingAsync([Path] Guid guid);
+    /// <summary>
+    /// Delete (reset) all mappings.
+    /// </summary>
+    /// <param name="reloadStaticMappings">A value indicating whether to reload the static mappings after the reset.</param>
+    /// <param name="cancellationToken">The optional cancellationToken.</param>
+    [Post("mappings/reset")]
+    Task<StatusModel> ResetMappingsAsync(bool? reloadStaticMappings = false, CancellationToken cancellationToken = default);
 
-        /// <summary>
-        /// Update a mapping based on the guid
-        /// </summary>
-        /// <param name="guid">The Guid</param>
-        /// <param name="mapping">MappingModel</param>
-        [Put("mappings/{guid}")]
-        [Header("Content-Type", "application/json")]
-        Task<StatusModel> PutMappingAsync([Path] Guid guid, [Body] MappingModel mapping);
+    /// <summary>
+    /// Get a mapping based on the guid
+    /// </summary>
+    /// <param name="guid">The Guid</param>
+    /// <returns>MappingModel</returns>
+    /// <param name="cancellationToken">The optional cancellationToken.</param>
+    [Get("mappings/{guid}")]
+    Task<MappingModel> GetMappingAsync([Path] Guid guid, CancellationToken cancellationToken = default);
 
-        /// <summary>
-        /// Delete a mapping based on the guid
-        /// </summary>
-        /// <param name="guid">The Guid</param>
-        [Delete("mappings/{guid}")]
-        Task<StatusModel> DeleteMappingAsync([Path] Guid guid);
+    /// <summary>
+    /// Get the C# code from a mapping based on the guid
+    /// </summary>
+    /// <param name="guid">The Guid</param>
+    /// <param name="mappingConverterType">The optional mappingConverterType (can be Server or Builder)</param>
+    /// <returns>C# code</returns>
+    /// <param name="cancellationToken">The optional cancellationToken.</param>
+    [Get("mappings/code/{guid}")]
+    Task<string> GetMappingCodeAsync([Path] Guid guid, [Query] MappingConverterType mappingConverterType = MappingConverterType.Server, CancellationToken cancellationToken = default);
 
-        /// <summary>
-        /// Save the mappings
-        /// </summary>
-        [Post("mappings/save")]
-        Task<StatusModel> SaveMappingAsync();
+    /// <summary>
+    /// Update a mapping based on the guid
+    /// </summary>
+    /// <param name="guid">The Guid</param>
+    /// <param name="mapping">MappingModel</param>
+    /// <param name="cancellationToken">The optional cancellationToken.</param>
+    [Put("mappings/{guid}")]
+    [Header("Content-Type", "application/json")]
+    Task<StatusModel> PutMappingAsync([Path] Guid guid, [Body] MappingModel mapping, CancellationToken cancellationToken = default);
 
-        /// <summary>
-        /// Get the requests.
-        /// </summary>
-        /// <returns>LogRequestModels</returns>
-        [Get("requests")]
-        Task<IList<LogEntryModel>> GetRequestsAsync();
+    /// <summary>
+    /// Delete a mapping based on the guid
+    /// </summary>
+    /// <param name="guid">The Guid</param>
+    /// <param name="cancellationToken">The optional cancellationToken.</param>
+    [Delete("mappings/{guid}")]
+    Task<StatusModel> DeleteMappingAsync([Path] Guid guid, CancellationToken cancellationToken = default);
 
-        /// <summary>
-        /// Delete all requests.
-        /// </summary>
-        [Delete("requests")]
-        Task<StatusModel> DeleteRequestsAsync();
+    /// <summary>
+    /// Save the mappings
+    /// </summary>
+    /// <param name="cancellationToken">The optional cancellationToken.</param>
+    [Post("mappings/save")]
+    Task<StatusModel> SaveMappingAsync(CancellationToken cancellationToken = default);
 
-        /// <summary>
-        /// Delete (reset) all requests.
-        /// </summary>
-        [Post("requests/reset")]
-        Task<StatusModel> ResetRequestsAsync();
+    /// <summary>
+    /// Get the requests.
+    /// </summary>
+    /// <returns>LogRequestModels</returns>
+    /// <param name="cancellationToken">The optional cancellationToken.</param>
+    [Get("requests")]
+    Task<IList<LogEntryModel>> GetRequestsAsync(CancellationToken cancellationToken = default);
 
-        /// <summary>
-        /// Get a request based on the guid
-        /// </summary>
-        /// <param name="guid">The Guid</param>
-        /// <returns>MappingModel</returns>
-        [Get("requests/{guid}")]
-        Task<LogEntryModel> GetRequestAsync([Path] Guid guid);
+    /// <summary>
+    /// Delete all requests.
+    /// </summary>
+    /// <param name="cancellationToken">The optional cancellationToken.</param>
+    [Delete("requests")]
+    Task<StatusModel> DeleteRequestsAsync(CancellationToken cancellationToken = default);
 
-        /// <summary>
-        /// Delete a request based on the guid
-        /// </summary>
-        /// <param name="guid">The Guid</param>
-        [Delete("requests/{guid}")]
-        Task<StatusModel> DeleteRequestAsync([Path] Guid guid);
+    /// <summary>
+    /// Delete (reset) all requests.
+    /// </summary>
+    /// <param name="cancellationToken">The optional cancellationToken.</param>
+    [Post("requests/reset")]
+    Task<StatusModel> ResetRequestsAsync(CancellationToken cancellationToken = default);
 
-        /// <summary>
-        /// Find a request based on the criteria
-        /// </summary>
-        /// <param name="model">The RequestModel</param>
-        [Post("requests/find")]
-        [Header("Content-Type", "application/json")]
-        Task<IList<LogEntryModel>> FindRequestsAsync([Body] RequestModel model);
+    /// <summary>
+    /// Get a request based on the guid
+    /// </summary>
+    /// <param name="guid">The Guid</param>
+    /// <returns>MappingModel</returns>
+    /// <param name="cancellationToken">The optional cancellationToken.</param>
+    [Get("requests/{guid}")]
+    Task<LogEntryModel> GetRequestAsync([Path] Guid guid, CancellationToken cancellationToken = default);
 
-        /// <summary>
-        /// Get all scenarios
-        /// </summary>
-        [Get("scenarios")]
-        Task<IList<ScenarioStateModel>> GetScenariosAsync();
+    /// <summary>
+    /// Delete a request based on the guid
+    /// </summary>
+    /// <param name="guid">The Guid</param>
+    /// <param name="cancellationToken">The optional cancellationToken.</param>
+    [Delete("requests/{guid}")]
+    Task<StatusModel> DeleteRequestAsync([Path] Guid guid, CancellationToken cancellationToken = default);
 
-        /// <summary>
-        /// Delete (reset) all scenarios
-        /// </summary>
-        [Delete("scenarios")]
-        Task<StatusModel> DeleteScenariosAsync();
+    /// <summary>
+    /// Find a request based on the criteria
+    /// </summary>
+    /// <param name="model">The RequestModel</param>
+    /// <param name="cancellationToken">The optional cancellationToken.</param>
+    [Post("requests/find")]
+    [Header("Content-Type", "application/json")]
+    Task<IList<LogEntryModel>> FindRequestsAsync([Body] RequestModel model, CancellationToken cancellationToken = default);
 
-        /// <summary>
-        /// Delete (reset) all scenarios
-        /// </summary>
-        [Post("scenarios")]
-        Task<StatusModel> ResetScenariosAsync();
+    /// <summary>
+    /// Get all scenarios
+    /// </summary>
+    /// <param name="cancellationToken">The optional cancellationToken.</param>
+    [Get("scenarios")]
+    Task<IList<ScenarioStateModel>> GetScenariosAsync(CancellationToken cancellationToken = default);
 
-        /// <summary>
-        /// Delete (reset) a specific scenario
-        /// </summary>
-        [Delete("scenarios/{name}")]
-        [AllowAnyStatusCode]
-        Task<StatusModel> DeleteScenarioAsync([Path] string name);
+    /// <summary>
+    /// Delete (reset) all scenarios
+    /// </summary>
+    /// <param name="cancellationToken">The optional cancellationToken.</param>
+    [Delete("scenarios")]
+    Task<StatusModel> DeleteScenariosAsync(CancellationToken cancellationToken = default);
 
-        /// <summary>
-        /// Delete (reset) all scenarios
-        /// </summary>
-        [Post("scenarios/{name}/reset")]
-        [AllowAnyStatusCode]
-        Task<StatusModel> ResetScenarioAsync([Path] string name);
+    /// <summary>
+    /// Delete (reset) all scenarios
+    /// </summary>
+    /// <param name="cancellationToken">The optional cancellationToken.</param>
+    [Post("scenarios")]
+    Task<StatusModel> ResetScenariosAsync(CancellationToken cancellationToken = default);
 
-        /// <summary>
-        /// Create a new File
-        /// </summary>
-        /// <param name="filename">The filename</param>
-        /// <param name="body">The body</param>
-        [Post("files/{filename}")]
-        Task<StatusModel> PostFileAsync([Path] string filename, [Body] string body);
+    /// <summary>
+    /// Delete (reset) a specific scenario
+    /// </summary>
+    /// <param name="name">Scenario name.</param>
+    /// <param name="cancellationToken">The optional cancellationToken.</param>
+    [Delete("scenarios/{name}")]
+    [AllowAnyStatusCode]
+    Task<StatusModel> DeleteScenarioAsync([Path] string name, CancellationToken cancellationToken = default);
 
-        /// <summary>
-        /// Update an existing File
-        /// </summary>
-        /// <param name="filename">The filename</param>
-        /// <param name="body">The body</param>
-        [Put("files/{filename}")]
-        Task<StatusModel> PutFileAsync([Path] string filename, [Body] string body);
+    /// <summary>
+    /// Delete (reset) all scenarios
+    /// </summary>
+    /// <param name="name">Scenario name.</param>
+    /// <param name="cancellationToken">The optional cancellationToken.</param>
+    [Post("scenarios/{name}/reset")]
+    [AllowAnyStatusCode]
+    Task<StatusModel> ResetScenarioAsync([Path] string name, CancellationToken cancellationToken = default);
 
-        /// <summary>
-        /// Get the content of an existing File
-        /// </summary>
-        /// <param name="filename">The filename</param>
-        [Get("files/{filename}")]
-        Task<string> GetFileAsync([Path] string filename);
+    /// <summary>
+    /// Create a new File
+    /// </summary>
+    /// <param name="filename">The filename</param>
+    /// <param name="body">The body</param>
+    /// <param name="cancellationToken">The optional cancellationToken.</param>
+    [Post("files/{filename}")]
+    Task<StatusModel> PostFileAsync([Path] string filename, [Body] string body, CancellationToken cancellationToken = default);
 
-        /// <summary>
-        /// Delete an existing File
-        /// </summary>
-        /// <param name="filename">The filename</param>
-        [Delete("files/{filename}")]
-        Task<StatusModel> DeleteFileAsync([Path] string filename);
+    /// <summary>
+    /// Update an existing File
+    /// </summary>
+    /// <param name="filename">The filename</param>
+    /// <param name="body">The body</param>
+    /// <param name="cancellationToken">The optional cancellationToken.</param>
+    [Put("files/{filename}")]
+    Task<StatusModel> PutFileAsync([Path] string filename, [Body] string body, CancellationToken cancellationToken = default);
 
-        /// <summary>
-        /// Check if a file exists
-        /// </summary>
-        /// <param name="filename">The filename</param>
-        [Head("files/{filename}")]
-        Task FileExistsAsync([Path] string filename);
-    }
+    /// <summary>
+    /// Get the content of an existing File
+    /// </summary>
+    /// <param name="filename">The filename</param>
+    /// <param name="cancellationToken">The optional cancellationToken.</param>
+    [Get("files/{filename}")]
+    Task<string> GetFileAsync([Path] string filename, CancellationToken cancellationToken = default);
+
+    /// <summary>
+    /// Delete an existing File
+    /// </summary>
+    /// <param name="filename">The filename</param>
+    /// <param name="cancellationToken">The optional cancellationToken.</param>
+    [Delete("files/{filename}")]
+    Task<StatusModel> DeleteFileAsync([Path] string filename, CancellationToken cancellationToken = default);
+
+    /// <summary>
+    /// Check if a file exists
+    /// </summary>
+    /// <param name="filename">The filename</param>
+    /// <param name="cancellationToken">The optional cancellationToken.</param>
+    [Head("files/{filename}")]
+    Task FileExistsAsync([Path] string filename, CancellationToken cancellationToken = default);
 }

src/WireMock.Net.RestClient/WireMock.Net.RestClient.csproj

@@ -30,8 +30,10 @@
   </PropertyGroup>
 
   <ItemGroup>
+    <PackageReference Include="JsonConverter.Newtonsoft.Json" Version="0.3.0" />
     <PackageReference Include="Microsoft.SourceLink.GitHub" Version="1.1.1" PrivateAssets="All" />
     <PackageReference Include="RestEase" Version="1.5.7" />
+    <PackageReference Include="Stef.Validation" Version="0.1.1" />
   </ItemGroup>
 
   <ItemGroup>

src/WireMock.Net/Constants/WireMockConstants.cs

@@ -7,4 +7,5 @@ internal static class WireMockConstants
     public const int ProxyPriority = -2_000_000;
 
     public const string ContentTypeJson = "application/json";
+    public const string ContentTypeTextPlain = "text/plain";
 }

src/WireMock.Net/Extensions/EnumExtensions.cs

@@ -0,0 +1,20 @@
+using System;
+using System.Reflection;
+
+namespace WireMock.Extensions;
+
+internal static class EnumExtensions
+{
+    public static string GetFullyQualifiedEnumValue<T>(this T enumValue)
+        where T : struct, IConvertible
+    {
+        var type = typeof(T);
+
+        if (!type.GetTypeInfo().IsEnum)
+        {
+            throw new ArgumentException("T must be an enum");
+        }
+
+        return $"{type.Namespace}.{type.Name}.{enumValue}";
+    }
+}

src/WireMock.Net/Http/HttpClientBuilder.cs

@@ -35,9 +35,14 @@ internal static class HttpClientBuilder
         {
             handler.ClientCertificateOptions = ClientCertificateOption.Manual;
 
-            var x509Certificate2 = CertificateLoader.LoadCertificate(settings.ClientX509Certificate2ThumbprintOrSubjectName);
+            var x509Certificate2 = CertificateLoader.LoadCertificate(settings.ClientX509Certificate2ThumbprintOrSubjectName!);
             handler.ClientCertificates.Add(x509Certificate2);
         }
+        else if (settings.Certificate != null)
+        {
+            handler.ClientCertificateOptions = ClientCertificateOption.Manual;
+            handler.ClientCertificates.Add(settings.Certificate);
+        }
 
         handler.AllowAutoRedirect = settings.AllowAutoRedirect == true;
 

src/WireMock.Net/Http/WebhookSender.cs

@@ -51,14 +51,14 @@ internal class WebhookSender
             switch (webhookRequest.TransformerType)
             {
                 case TransformerType.Handlebars:
-                    var factoryHandlebars = new HandlebarsContextFactory(_settings.FileSystemHandler, _settings.HandlebarsRegistrationCallback);
-                    transformer = new Transformer(factoryHandlebars);
+                    var factoryHandlebars = new HandlebarsContextFactory(_settings);
+                    transformer = new Transformer(_settings, factoryHandlebars);
                     break;
 
                 case TransformerType.Scriban:
                 case TransformerType.ScribanDotLiquid:
                     var factoryDotLiquid = new ScribanContextFactory(_settings.FileSystemHandler, webhookRequest.TransformerType);
-                    transformer = new Transformer(factoryDotLiquid);
+                    transformer = new Transformer(_settings, factoryDotLiquid);
                     break;
 
                 default:

src/WireMock.Net/IMapping.cs

@@ -1,4 +1,5 @@
 using System;
+using System.Collections.Generic;
 using System.Threading.Tasks;
 using WireMock.Matchers.Request;
 using WireMock.Models;
@@ -17,6 +18,11 @@ public interface IMapping
     /// </summary>
     Guid Guid { get; }
 
+    /// <summary>
+    /// The datetime when this mapping was created or updated.
+    /// </summary>
+    public DateTime? UpdatedAt { get; set; }
+
     /// <summary>
     /// Gets the TimeSettings (Start, End and TTL).
     /// </summary>
@@ -115,7 +121,16 @@ public interface IMapping
     /// <summary>
     /// Use Fire and Forget for the defined webhook(s). [Optional]
     /// </summary>
-    public bool? UseWebhooksFireAndForget { get; set; }
+    bool? UseWebhooksFireAndForget { get; set; }
+
+    /// <summary>
+    /// Data Object which can be used when WithTransformer is used.
+    /// e.g. lookup an path in this object using
+    /// <example>
+    /// lookup data "1"
+    /// </example>
+    /// </summary>
+    object? Data { get; set; }
 
     /// <summary>
     /// ProvideResponseAsync

src/WireMock.Net/IMappingBuilder.cs

@@ -0,0 +1,60 @@
+using System;
+using WireMock.Admin.Mappings;
+using WireMock.Matchers.Request;
+using WireMock.Server;
+using WireMock.Types;
+
+namespace WireMock;
+
+/// <summary>
+/// IMappingBuilder
+/// </summary>
+public interface IMappingBuilder
+{
+    /// <summary>
+    /// The given.
+    /// </summary>
+    /// <param name="requestMatcher">The request matcher.</param>
+    /// <param name="saveToFile">Optional boolean to indicate if this mapping should be saved as static mapping file.</param>
+    /// <returns>The <see cref="IRespondWithAProvider"/>.</returns>
+    IRespondWithAProvider Given(IRequestMatcher requestMatcher, bool saveToFile = false);
+
+    /// <summary>
+    /// Gets all the mappings as a list.
+    /// </summary>
+    /// <returns>A list from <see cref="MappingModel"/>s.</returns>
+    MappingModel[] GetMappings();
+
+    /// <summary>
+    /// Convert all mappings to JSON.
+    /// </summary>
+    /// <returns>JSON</returns>
+    string ToJson();
+
+    /// <summary>
+    /// Save all mappings as a single JSON to a file.
+    /// </summary>
+    /// <param name="path">The file to write to.</param>
+    void SaveMappingsToFile(string path);
+
+    /// <summary>
+    /// Save all mappings as multiple JSON files (each file is 1 mapping).
+    /// </summary>
+    /// <param name="folder">The folder to write the files to.</param>
+    void SaveMappingsToFolder(string folder);
+
+    /// <summary>
+    /// Get the C# code for a mapping.
+    /// </summary>
+    /// <param name="guid">The Mapping Guid.</param>
+    /// <param name="converterType">The <see cref="MappingConverterType"/></param>
+    /// <returns>C# code (null in case the mapping is not found)</returns>
+    string? ToCSharpCode(Guid guid, MappingConverterType converterType);
+
+    /// <summary>
+    /// Get the C# code for all mappings.
+    /// </summary>
+    /// <param name="converterType">The <see cref="MappingConverterType"/></param>
+    /// <returns>C# code</returns>
+    public string ToCSharpCode(MappingConverterType converterType);
+}

src/WireMock.Net/Json/DynamicJsonClassOptions.cs

@@ -0,0 +1,10 @@
+// Copied from https://github.com/Handlebars-Net/Handlebars.Net.Helpers/blob/master/src/Handlebars.Net.Helpers.DynamicLinq
+
+namespace WireMock.Json;
+
+internal class DynamicJsonClassOptions
+{
+    public IntegerBehavior IntegerConvertBehavior { get; set; } = IntegerBehavior.UseLong;
+
+    public FloatBehavior FloatConvertBehavior { get; set; } = FloatBehavior.UseDouble;
+}

src/WireMock.Net/Json/DynamicPropertyWithValue.cs

@@ -0,0 +1,15 @@
+// Copied from https://github.com/Handlebars-Net/Handlebars.Net.Helpers/blob/master/src/Handlebars.Net.Helpers.DynamicLinq
+
+using System.Linq.Dynamic.Core;
+
+namespace WireMock.Json;
+
+public class DynamicPropertyWithValue : DynamicProperty
+{
+    public object? Value { get; }
+
+    public DynamicPropertyWithValue(string name, object? value) : base(name, value?.GetType() ?? typeof(object))
+    {
+        Value = value;
+    }
+}

src/WireMock.Net/Json/FloatBehavior.cs

@@ -0,0 +1,24 @@
+// Copied from https://github.com/Handlebars-Net/Handlebars.Net.Helpers/blob/master/src/Handlebars.Net.Helpers.DynamicLinq
+
+namespace WireMock.Json;
+
+/// <summary>
+/// Enum to define how to convert an Float in the Json Object.
+/// </summary>
+internal enum FloatBehavior
+{
+    /// <summary>
+    /// Convert all Float types in the Json Object to a double. (default)
+    /// </summary>
+    UseDouble = 0,
+
+    /// <summary>
+    /// Convert all Float types in the Json Object to a float (unless overflow).
+    /// </summary>
+    UseFloat = 1,
+
+    /// <summary>
+    /// Convert all Float types in the Json Object to a decimal (unless overflow).
+    /// </summary>
+    UseDecimal = 2
+}

src/WireMock.Net/Json/IntegerBehavior.cs

@@ -0,0 +1,20 @@
+// Copied from https://github.com/Handlebars-Net/Handlebars.Net.Helpers/blob/master/src/Handlebars.Net.Helpers.DynamicLinq
+
+namespace WireMock.Json;
+
+/// <summary>
+/// Enum to define how to convert an Integer in the Json Object.
+/// </summary>
+internal enum IntegerBehavior
+{
+    /// <summary>
+    /// Convert all Integer types in the Json Object to a int (unless overflow).
+    /// (default)
+    /// </summary>
+    UseInt = 0,
+
+    /// <summary>
+    /// Convert all Integer types in the Json Object to a long.
+    /// </summary>
+    UseLong = 1
+}

src/WireMock.Net/Json/JObjectExtensions.cs

@@ -0,0 +1,202 @@
+// Copied from https://github.com/Handlebars-Net/Handlebars.Net.Helpers/blob/master/src/Handlebars.Net.Helpers.DynamicLinq
+
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Linq;
+using System.Linq.Dynamic.Core;
+using System.Reflection;
+using Newtonsoft.Json.Linq;
+
+namespace WireMock.Json;
+
+internal static class JObjectExtensions
+{
+    private class JTokenResolvers : Dictionary<JTokenType, Func<JToken, DynamicJsonClassOptions?, object?>>
+    {
+    }
+
+    private static readonly JTokenResolvers Resolvers = new()
+    {
+        { JTokenType.Array, ConvertJTokenArray },
+        { JTokenType.Boolean, (jToken, _) => jToken.Value<bool>() },
+        { JTokenType.Bytes, (jToken, _) => jToken.Value<byte[]>() },
+        { JTokenType.Date, (jToken, _) => jToken.Value<DateTime>() },
+        { JTokenType.Float, ConvertJTokenFloat },
+        { JTokenType.Guid, (jToken, _) => jToken.Value<Guid>() },
+        { JTokenType.Integer, ConvertJTokenInteger },
+        { JTokenType.None, (_, _) => null },
+        { JTokenType.Null, (_, _) => null },
+        { JTokenType.Object, ConvertJObject },
+        { JTokenType.Property, ConvertJTokenProperty },
+        { JTokenType.String, (jToken, _) => jToken.Value<string>() },
+        { JTokenType.TimeSpan, (jToken, _) => jToken.Value<TimeSpan>() },
+        { JTokenType.Undefined, (_, _) => null },
+        { JTokenType.Uri, (o, _) => o.Value<Uri>() },
+    };
+
+    internal static DynamicClass? ToDynamicJsonClass(this JObject? src, DynamicJsonClassOptions? options = null)
+    {
+        if (src == null)
+        {
+            return null;
+        }
+
+        var dynamicPropertyWithValues = new List<DynamicPropertyWithValue>();
+
+        foreach (var prop in src.Properties())
+        {
+            var value = Resolvers[prop.Type](prop.Value, options);
+            if (value != null)
+            {
+                dynamicPropertyWithValues.Add(new DynamicPropertyWithValue(prop.Name, value));
+            }
+        }
+
+        return CreateInstance(dynamicPropertyWithValues);
+    }
+
+    internal static IEnumerable ToDynamicClassArray(this JArray? src, DynamicJsonClassOptions? options = null)
+    {
+        if (src == null)
+        {
+            return new object?[0];
+        }
+
+        return ConvertJTokenArray(src, options);
+    }
+
+    private static object? ConvertJObject(JToken arg, DynamicJsonClassOptions? options = null)
+    {
+        if (arg is JObject asJObject)
+        {
+            return asJObject.ToDynamicJsonClass(options);
+        }
+
+        return GetResolverFor(arg)(arg, options);
+    }
+
+    private static object PassThrough(JToken arg, DynamicJsonClassOptions? options)
+    {
+        return arg;
+    }
+
+    private static Func<JToken, DynamicJsonClassOptions?, object?> GetResolverFor(JToken arg)
+    {
+        return Resolvers.TryGetValue(arg.Type, out var result) ? result : PassThrough;
+    }
+
+    private static object ConvertJTokenFloat(JToken arg, DynamicJsonClassOptions? options = null)
+    {
+        if (arg.Type != JTokenType.Float)
+        {
+            throw new InvalidOperationException($"Unable to convert {nameof(JToken)} of type: {arg.Type} to double or float.");
+        }
+
+        if (options?.FloatConvertBehavior == FloatBehavior.UseFloat)
+        {
+            try
+            {
+                return arg.Value<float>();
+            }
+            catch
+            {
+                return arg.Value<double>();
+            }
+        }
+
+        if (options?.FloatConvertBehavior == FloatBehavior.UseDecimal)
+        {
+            try
+            {
+                return arg.Value<decimal>();
+            }
+            catch
+            {
+                return arg.Value<double>();
+            }
+        }
+
+
+        return arg.Value<double>();
+    }
+
+    private static object ConvertJTokenInteger(JToken arg, DynamicJsonClassOptions? options = null)
+    {
+        if (arg.Type != JTokenType.Integer)
+        {
+            throw new InvalidOperationException($"Unable to convert {nameof(JToken)} of type: {arg.Type} to long or int.");
+        }
+
+        var longValue = arg.Value<long>();
+
+        if (options is null || options.IntegerConvertBehavior == IntegerBehavior.UseInt)
+        {
+            if (longValue is >= int.MinValue and <= int.MaxValue)
+            {
+                return Convert.ToInt32(longValue);
+            }
+        }
+
+        return longValue;
+    }
+
+    private static object? ConvertJTokenProperty(JToken arg, DynamicJsonClassOptions? options = null)
+    {
+        var resolver = GetResolverFor(arg);
+        if (resolver is null)
+        {
+            throw new InvalidOperationException($"Unable to handle {nameof(JToken)} of type: {arg.Type}.");
+        }
+
+        return resolver(arg, options);
+    }
+
+    private static IEnumerable ConvertJTokenArray(JToken arg, DynamicJsonClassOptions? options = null)
+    {
+        if (arg is not JArray array)
+        {
+            throw new InvalidOperationException($"Unable to convert {nameof(JToken)} of type: {arg.Type} to {nameof(JArray)}.");
+        }
+
+        var result = new List<object?>();
+        foreach (var item in array)
+        {
+            result.Add(ConvertJObject(item));
+        }
+
+        var distinctType = FindSameTypeOf(result);
+        return distinctType == null ? result.ToArray() : ConvertToTypedArray(result, distinctType);
+    }
+
+    private static Type? FindSameTypeOf(IEnumerable<object?> src)
+    {
+        var types = src.Select(o => o?.GetType()).Distinct().OfType<Type>().ToArray();
+        return types.Length == 1 ? types[0] : null;
+    }
+
+    private static IEnumerable ConvertToTypedArray(IEnumerable<object?> src, Type newType)
+    {
+        var method = ConvertToTypedArrayGenericMethod.MakeGenericMethod(newType);
+        return (IEnumerable)method.Invoke(null, new object[] { src })!;
+    }
+
+    private static readonly MethodInfo ConvertToTypedArrayGenericMethod = typeof(JObjectExtensions).GetMethod(nameof(ConvertToTypedArrayGeneric), BindingFlags.NonPublic | BindingFlags.Static)!;
+
+    private static T[] ConvertToTypedArrayGeneric<T>(IEnumerable<object> src)
+    {
+        return src.Cast<T>().ToArray();
+    }
+
+    public static DynamicClass CreateInstance(IList<DynamicPropertyWithValue> dynamicPropertiesWithValue, bool createParameterCtor = true)
+    {
+        var type = DynamicClassFactory.CreateType(dynamicPropertiesWithValue.Cast<DynamicProperty>().ToArray(), createParameterCtor);
+        var dynamicClass = (DynamicClass)Activator.CreateInstance(type);
+        foreach (var dynamicPropertyWithValue in dynamicPropertiesWithValue.Where(p => p.Value != null))
+        {
+            dynamicClass.SetDynamicPropertyValue(dynamicPropertyWithValue.Name, dynamicPropertyWithValue.Value!);
+        }
+
+        return dynamicClass;
+    }
+}

src/WireMock.Net/Mapping.cs

@@ -15,6 +15,9 @@ public class Mapping : IMapping
     /// <inheritdoc />
     public Guid Guid { get; }
 
+    /// <inheritdoc />
+    public DateTime? UpdatedAt { get; set; }
+
     /// <inheritdoc />
     public string? Title { get; }
 
@@ -69,10 +72,14 @@ public class Mapping : IMapping
     /// <inheritdoc />
     public ITimeSettings? TimeSettings { get; }
 
+    /// <inheritdoc />
+    public object? Data { get; set; }
+
     /// <summary>
     /// Initializes a new instance of the <see cref="Mapping"/> class.
     /// </summary>
     /// <param name="guid">The unique identifier.</param>
+    /// <param name="updatedAt">The datetime when this mapping was created.</param>
     /// <param name="title">The unique title (can be null).</param>
     /// <param name="description">The description (can be null).</param>
     /// <param name="path">The full file path from this mapping title (can be null).</param>
@@ -87,8 +94,10 @@ public class Mapping : IMapping
     /// <param name="webhooks">The Webhooks. [Optional]</param>
     /// <param name="useWebhooksFireAndForget">Use Fire and Forget for the defined webhook(s). [Optional]</param>
     /// <param name="timeSettings">The TimeSettings. [Optional]</param>
+    /// <param name="data">The data object. [Optional]</param>
     public Mapping(
         Guid guid,
+        DateTime updatedAt,
         string? title,
         string? description,
         string? path,
@@ -102,9 +111,11 @@ public class Mapping : IMapping
         int? stateTimes,
         IWebhook[]? webhooks,
         bool? useWebhooksFireAndForget,
-        ITimeSettings? timeSettings)
+        ITimeSettings? timeSettings,
+        object? data)
     {
         Guid = guid;
+        UpdatedAt = updatedAt;
         Title = title;
         Description = description;
         Path = path;
@@ -119,6 +130,7 @@ public class Mapping : IMapping
         Webhooks = webhooks;
         UseWebhooksFireAndForget = useWebhooksFireAndForget;
         TimeSettings = timeSettings;
+        Data = data;
     }
 
     /// <inheritdoc cref="IMapping.ProvideResponseAsync" />

src/WireMock.Net/MappingBuilder.cs

@@ -0,0 +1,160 @@
+using System;
+using System.Linq;
+using System.Text;
+using Newtonsoft.Json;
+using Stef.Validation;
+using WireMock.Admin.Mappings;
+using WireMock.Matchers.Request;
+using WireMock.Owin;
+using WireMock.Serialization;
+using WireMock.Server;
+using WireMock.Settings;
+using WireMock.Types;
+using WireMock.Util;
+
+namespace WireMock;
+
+/// <summary>
+/// MappingBuilder
+/// </summary>
+public class MappingBuilder : IMappingBuilder
+{
+    private readonly WireMockServerSettings _settings;
+    private readonly IWireMockMiddlewareOptions _options;
+    private readonly MappingConverter _mappingConverter;
+    private readonly MappingToFileSaver _mappingToFileSaver;
+    private readonly IGuidUtils _guidUtils;
+    private readonly IDateTimeUtils _dateTimeUtils;
+
+    /// <summary>
+    /// Create a MappingBuilder
+    /// </summary>
+    /// <param name="settings">The optional <see cref="WireMockServerSettings"/>.</param>
+    public MappingBuilder(WireMockServerSettings? settings = null)
+    {
+        _settings = settings ?? new WireMockServerSettings();
+        _options = WireMockMiddlewareOptionsHelper.InitFromSettings(_settings);
+
+        var matcherMapper = new MatcherMapper(_settings);
+        _mappingConverter = new MappingConverter(matcherMapper);
+        _mappingToFileSaver = new MappingToFileSaver(_settings, _mappingConverter);
+
+        _guidUtils = new GuidUtils();
+        _dateTimeUtils = new DateTimeUtils();
+    }
+
+    internal MappingBuilder(
+        WireMockServerSettings settings,
+        IWireMockMiddlewareOptions options,
+        MappingConverter mappingConverter,
+        MappingToFileSaver mappingToFileSaver,
+        IGuidUtils guidUtils,
+        IDateTimeUtils dateTimeUtils
+    )
+    {
+        _settings = Guard.NotNull(settings);
+        _options = Guard.NotNull(options);
+        _mappingConverter = Guard.NotNull(mappingConverter);
+        _mappingToFileSaver = Guard.NotNull(mappingToFileSaver);
+        _guidUtils = Guard.NotNull(guidUtils);
+        _dateTimeUtils = Guard.NotNull(dateTimeUtils);
+    }
+
+    /// <inheritdoc />
+    public IRespondWithAProvider Given(IRequestMatcher requestMatcher, bool saveToFile = false)
+    {
+        return new RespondWithAProvider(RegisterMapping, Guard.NotNull(requestMatcher), _settings, _guidUtils, _dateTimeUtils, saveToFile);
+    }
+
+    /// <inheritdoc />
+    public MappingModel[] GetMappings()
+    {
+        return GetMappingsInternal().Select(_mappingConverter.ToMappingModel).ToArray();
+    }
+
+    internal IMapping[] GetMappingsInternal()
+    {
+        return _options.Mappings.Values.ToArray().Where(m => !m.IsAdminInterface).ToArray();
+    }
+
+    /// <inheritdoc />
+    public string ToJson()
+    {
+        return ToJson(GetMappings());
+    }
+
+    /// <inheritdoc />
+    public string? ToCSharpCode(Guid guid, MappingConverterType converterType)
+    {
+        var mapping = GetMappingsInternal().FirstOrDefault(m => m.Guid == guid);
+        if (mapping is null)
+        {
+            return null;
+        }
+
+        var settings = new MappingConverterSettings { AddStart = true, ConverterType = converterType };
+        return _mappingConverter.ToCSharpCode(mapping, settings);
+    }
+
+    /// <inheritdoc />
+    public string ToCSharpCode(MappingConverterType converterType)
+    {
+        var sb = new StringBuilder();
+        bool addStart = true;
+        foreach (var mapping in GetMappingsInternal())
+        {
+            sb.AppendLine(_mappingConverter.ToCSharpCode(mapping, new MappingConverterSettings { AddStart = addStart, ConverterType = converterType }));
+
+            if (addStart)
+            {
+                addStart = false;
+            }
+        }
+
+        return sb.ToString();
+    }
+
+    /// <inheritdoc />
+    public void SaveMappingsToFile(string path)
+    {
+        _mappingToFileSaver.SaveMappingsToFile(GetNonAdminMappings(), path);
+    }
+
+    /// <inheritdoc />
+    public void SaveMappingsToFolder(string? folder)
+    {
+        foreach (var mapping in GetNonAdminMappings().Where(m => !m.IsAdminInterface))
+        {
+            _mappingToFileSaver.SaveMappingToFile(mapping, folder);
+        }
+    }
+
+    private IMapping[] GetNonAdminMappings()
+    {
+        return _options.Mappings.Values.ToArray();
+    }
+
+    private void RegisterMapping(IMapping mapping, bool saveToFile)
+    {
+        // Check a mapping exists with the same Guid. If so, update the datetime and replace it.
+        if (_options.Mappings.ContainsKey(mapping.Guid))
+        {
+            mapping.UpdatedAt = _dateTimeUtils.UtcNow;
+            _options.Mappings[mapping.Guid] = mapping;
+        }
+        else
+        {
+            _options.Mappings.TryAdd(mapping.Guid, mapping);
+        }
+
+        if (saveToFile)
+        {
+            _mappingToFileSaver.SaveMappingToFile(mapping);
+        }
+    }
+
+    private static string ToJson(object value)
+    {
+        return JsonConvert.SerializeObject(value, JsonSerializationConstants.JsonSerializerSettingsDefault);
+    }
+}

src/WireMock.Net/Matchers/LinqMatcher.cs

@@ -5,8 +5,8 @@ using AnyOfTypes;
 using Newtonsoft.Json.Linq;
 using Stef.Validation;
 using WireMock.Extensions;
+using WireMock.Json;
 using WireMock.Models;
-using WireMock.Util;
 
 namespace WireMock.Matchers;
 
@@ -100,38 +100,55 @@ public class LinqMatcher : IObjectMatcher, IStringMatcher
     {
         double match = MatchScores.Mismatch;
 
-        JObject value;
-        switch (input)
+        JArray jArray;
+        try
         {
-            case JObject valueAsJObject:
-                value = valueAsJObject;
-                break;
-
-            case { } valueAsObject:
-                value = JObject.FromObject(valueAsObject);
-                break;
-
-            default:
-                return MatchScores.Mismatch;
+            jArray = new JArray { input };
+        }
+        catch
+        {
+            jArray = new JArray { JToken.FromObject(input) };
         }
 
+        //enumerable = jArray.ToDynamicClassArray();
+
+        //JObject value;
+        //switch (input)
+        //{
+        //    case JObject valueAsJObject:
+        //        value = valueAsJObject;
+        //        break;
+
+        //    case { } valueAsObject:
+        //        value = JObject.FromObject(valueAsObject);
+        //        break;
+
+        //    default:
+        //        return MatchScores.Mismatch;
+        //}
+
         // Convert a single object to a Queryable JObject-list with 1 entry.
-        var queryable1 = new[] { value }.AsQueryable();
+        //var queryable1 = new[] { value }.AsQueryable();
+        var queryable = jArray.ToDynamicClassArray().AsQueryable();
 
         try
         {
             // Generate the DynamicLinq select statement.
-            string dynamicSelect = JsonUtils.GenerateDynamicLinqStatement(value);
+            //string dynamicSelect = JsonUtils.GenerateDynamicLinqStatement(value);
 
             // Execute DynamicLinq Select statement.
-            var queryable2 = queryable1.Select(dynamicSelect);
+            //var queryable2 = queryable1.Select(dynamicSelect);
 
             // Use the Any(...) method to check if the result matches.
-            match = MatchScores.ToScore(_patterns.Select(pattern => queryable2.Any(pattern)).ToArray(), MatchOperator);
+
+            var patternsAsStringArray = _patterns.Select(p => p.GetPattern()).ToArray();
+            var scores = patternsAsStringArray.Select(p => queryable.Any(p)).ToArray();
+
+            match = MatchScores.ToScore(_patterns.Select(pattern => queryable.Any(pattern.GetPattern())).ToArray(), MatchOperator);
 
             return MatchBehaviourHelper.Convert(MatchBehaviour, match);
         }
-        catch
+        catch (Exception e)
         {
             if (ThrowException)
             {

src/WireMock.Net/Matchers/MatchScores.cs

@@ -1,6 +1,5 @@
 using System;
 using System.Collections.Generic;
-using System.Diagnostics.CodeAnalysis;
 using System.Linq;
 
 namespace WireMock.Matchers;

src/WireMock.Net/Matchers/Request/RequestMessageBodyMatcher.cs

@@ -1,8 +1,7 @@
 using System;
+using System.Collections.Generic;
 using System.Linq;
-using AnyOfTypes;
 using Stef.Validation;
-using WireMock.Models;
 using WireMock.Types;
 using WireMock.Util;
 
@@ -33,6 +32,11 @@ public class RequestMessageBodyMatcher : IRequestMatcher
     /// </summary>
     public Func<IBodyData?, bool>? BodyDataFunc { get; }
 
+    /// <summary>
+    /// The body data function for FormUrlEncoded
+    /// </summary>
+    public Func<IDictionary<string, string>?, bool>? FormUrlEncodedFunc { get; }
+
     /// <summary>
     /// The matchers.
     /// </summary>
@@ -109,6 +113,15 @@ public class RequestMessageBodyMatcher : IRequestMatcher
         BodyDataFunc = Guard.NotNull(func);
     }
 
+    /// <summary>
+    /// Initializes a new instance of the <see cref="RequestMessageBodyMatcher"/> class.
+    /// </summary>
+    /// <param name="func">The function.</param>
+    public RequestMessageBodyMatcher(Func<IDictionary<string, string>?, bool> func)
+    {
+        FormUrlEncodedFunc = Guard.NotNull(func);
+    }
+
     /// <summary>
     /// Initializes a new instance of the <see cref="RequestMessageBodyMatcher"/> class.
     /// </summary>
@@ -184,7 +197,7 @@ public class RequestMessageBodyMatcher : IRequestMatcher
         if (matcher is IStringMatcher stringMatcher)
         {
             // If the body is a Json or a String, use the BodyAsString to match on.
-            if (requestMessage?.BodyData?.DetectedBodyType == BodyType.Json || requestMessage?.BodyData?.DetectedBodyType == BodyType.String)
+            if (requestMessage?.BodyData?.DetectedBodyType is BodyType.Json or BodyType.String)
             {
                 return stringMatcher.IsMatch(requestMessage.BodyData.BodyAsString);
             }
@@ -206,6 +219,11 @@ public class RequestMessageBodyMatcher : IRequestMatcher
             return MatchScores.ToScore(Func(requestMessage.BodyData?.BodyAsString));
         }
 
+        if (FormUrlEncodedFunc != null)
+        {
+            return MatchScores.ToScore(FormUrlEncodedFunc(requestMessage.BodyData?.BodyAsFormUrlEncoded));
+        }
+
         if (JsonFunc != null)
         {
             return MatchScores.ToScore(JsonFunc(requestMessage.BodyData?.BodyAsJson));

src/WireMock.Net/Models/BodyData.cs

@@ -1,3 +1,4 @@
+using System.Collections.Generic;
 using System.Text;
 using WireMock.Types;
 
@@ -14,6 +15,9 @@ public class BodyData : IBodyData
     /// <inheritdoc />
     public string? BodyAsString { get; set; }
 
+    /// <inheritdoc />
+    public IDictionary<string, string>? BodyAsFormUrlEncoded { get; set; }
+
     /// <inheritdoc cref="IBodyData.BodyAsJson" />
     public object? BodyAsJson { get; set; }
 

src/WireMock.Net/Owin/AspNetCoreSelfHost.NETStandard.cs

@@ -2,9 +2,10 @@
 using System.Collections.Generic;
 using Microsoft.AspNetCore.Hosting;
 using Microsoft.AspNetCore.Server.Kestrel.Core;
+using Microsoft.AspNetCore.Server.Kestrel.Https;
 using Microsoft.Extensions.Configuration;
 using Microsoft.Extensions.DependencyInjection;
-using WireMock.HttpsCertificate;
+using CertificateLoader = WireMock.HttpsCertificate.CertificateLoader;
 
 namespace WireMock.Owin
 {
@@ -26,21 +27,25 @@ namespace WireMock.Owin
                 {
                     kestrelOptions.ListenAnyIP(urlDetail.Port, listenOptions =>
                     {
-                        if (wireMockMiddlewareOptions.CustomCertificateDefined)
+                        listenOptions.UseHttps(options =>
                         {
-                            listenOptions.UseHttps(CertificateLoader.LoadCertificate(
-                                wireMockMiddlewareOptions.X509StoreName,
-                                wireMockMiddlewareOptions.X509StoreLocation,
-                                wireMockMiddlewareOptions.X509ThumbprintOrSubjectName,
-                                wireMockMiddlewareOptions.X509CertificateFilePath,
-                                wireMockMiddlewareOptions.X509CertificatePassword,
-                                urlDetail.Host)
-                            );
-                        }
-                        else
-                        {
-                            listenOptions.UseHttps();
-                        }
+                            if (wireMockMiddlewareOptions.CustomCertificateDefined)
+                            {
+                                options.ServerCertificate = CertificateLoader.LoadCertificate(
+                                    wireMockMiddlewareOptions.X509StoreName,
+                                    wireMockMiddlewareOptions.X509StoreLocation,
+                                    wireMockMiddlewareOptions.X509ThumbprintOrSubjectName,
+                                    wireMockMiddlewareOptions.X509CertificateFilePath,
+                                    wireMockMiddlewareOptions.X509CertificatePassword,
+                                    urlDetail.Host);
+                            }
+
+                            options.ClientCertificateMode = (ClientCertificateMode) wireMockMiddlewareOptions.ClientCertificateMode;
+                            if (wireMockMiddlewareOptions.AcceptAnyClientCertificate)
+                            {
+                                options.ClientCertificateValidation = (_, _, _) => true;
+                            }
+                        });
                     });
                 }
                 else

src/WireMock.Net/Owin/AspNetCoreSelfHost.NETStandard13.cs

@@ -2,6 +2,7 @@
 using System.Collections.Generic;
 using Microsoft.AspNetCore.Hosting;
 using Microsoft.AspNetCore.Server.Kestrel;
+using Microsoft.AspNetCore.Server.Kestrel.Https;
 using Microsoft.Extensions.Configuration;
 using Microsoft.Extensions.DependencyInjection;
 using WireMock.HttpsCertificate;
@@ -23,21 +24,22 @@ internal partial class AspNetCoreSelfHost
         {
             if (urlDetail.IsHttps)
             {
-                if (wireMockMiddlewareOptions.CustomCertificateDefined)
+                options.UseHttps(new HttpsConnectionFilterOptions
                 {
-                    options.UseHttps(CertificateLoader.LoadCertificate(
-                        wireMockMiddlewareOptions.X509StoreName,
-                        wireMockMiddlewareOptions.X509StoreLocation,
-                        wireMockMiddlewareOptions.X509ThumbprintOrSubjectName,
-                        wireMockMiddlewareOptions.X509CertificateFilePath,
-                        wireMockMiddlewareOptions.X509CertificatePassword,
-                        urlDetail.Host)
-                    );
-                }
-                else
-                {
-                    options.UseHttps(PublicCertificateHelper.GetX509Certificate2());
-                }
+                    ServerCertificate = wireMockMiddlewareOptions.CustomCertificateDefined
+                        ? CertificateLoader.LoadCertificate(
+                            wireMockMiddlewareOptions.X509StoreName,
+                            wireMockMiddlewareOptions.X509StoreLocation,
+                            wireMockMiddlewareOptions.X509ThumbprintOrSubjectName,
+                            wireMockMiddlewareOptions.X509CertificateFilePath,
+                            wireMockMiddlewareOptions.X509CertificatePassword,
+                            urlDetail.Host)
+                        : PublicCertificateHelper.GetX509Certificate2(),
+                    ClientCertificateMode = (ClientCertificateMode) wireMockMiddlewareOptions.ClientCertificateMode,
+                    ClientCertificateValidation = wireMockMiddlewareOptions.AcceptAnyClientCertificate
+                        ? (_, _, _) => true
+                        : null,
+                });
             }
         }
     }

src/WireMock.Net/Owin/IWireMockMiddlewareOptions.cs

@@ -42,6 +42,10 @@ internal interface IWireMockMiddlewareOptions
     Action<IServiceCollection>? AdditionalServiceRegistration { get; set; }
 
     CorsPolicyOptions? CorsPolicyOptions { get; set; }
+
+    ClientCertificateMode ClientCertificateMode { get; set; }
+
+    bool AcceptAnyClientCertificate { get; set; }
 #endif
 
     IFileSystemHandler? FileSystemHandler { get; set; }

src/WireMock.Net/Owin/Mappers/OwinRequestMapper.cs

@@ -68,7 +68,21 @@ namespace WireMock.Owin.Mappers
                 body = await BodyParser.ParseAsync(bodyParserSettings).ConfigureAwait(false);
             }
 
-            return new RequestMessage(options, urlDetails, method, clientIP, body, headers, cookies) { DateTime = DateTime.UtcNow };
+            return new RequestMessage(
+                options,
+                urlDetails,
+                method,
+                clientIP,
+                body,
+                headers,
+                cookies
+#if USE_ASPNETCORE
+                , await request.HttpContext.Connection.GetClientCertificateAsync()
+#endif
+                )
+            {
+                DateTime = DateTime.UtcNow
+            };
         }
 
         private static (UrlDetails UrlDetails, string ClientIP) ParseRequest(IRequest request)

src/WireMock.Net/Owin/MappingMatcher.cs

@@ -12,13 +12,13 @@ internal class MappingMatcher : IMappingMatcher
 
     public MappingMatcher(IWireMockMiddlewareOptions options)
     {
-        Guard.NotNull(options, nameof(options));
-
-        _options = options;
+        _options = Guard.NotNull(options);
     }
 
     public (MappingMatcherResult? Match, MappingMatcherResult? Partial) FindBestMatch(RequestMessage request)
     {
+        Guard.NotNull(request);
+
         var possibleMappings = new List<MappingMatcherResult>();
 
         foreach (var mapping in _options.Mappings.Values.Where(m => m.TimeSettings.IsValid()))
@@ -41,8 +41,7 @@ internal class MappingMatcher : IMappingMatcher
 
         var partialMappings = possibleMappings
             .Where(pm => (pm.Mapping.IsAdminInterface && pm.RequestMatchResult.IsPerfectMatch) || !pm.Mapping.IsAdminInterface)
-            .OrderBy(m => m.RequestMatchResult)
-            .ThenBy(m => m.Mapping.Priority)
+            .OrderBy(m => m.RequestMatchResult).ThenBy(m => m.Mapping.Priority).ThenByDescending(m => m.Mapping.UpdatedAt)
             .ToList();
         var partialMatch = partialMappings.FirstOrDefault(pm => pm.RequestMatchResult.AverageTotalScore > 0.0);
 
@@ -53,7 +52,7 @@ internal class MappingMatcher : IMappingMatcher
 
         var match = possibleMappings
             .Where(m => m.RequestMatchResult.IsPerfectMatch)
-            .OrderBy(m => m.Mapping.Priority).ThenBy(m => m.RequestMatchResult)
+            .OrderBy(m => m.Mapping.Priority).ThenBy(m => m.RequestMatchResult).ThenByDescending(m => m.Mapping.UpdatedAt)
             .FirstOrDefault();
 
         return (match, partialMatch);

src/WireMock.Net/Owin/WireMockMiddlewareOptions.cs

@@ -42,6 +42,11 @@ internal class WireMockMiddlewareOptions : IWireMockMiddlewareOptions
     public Action<IServiceCollection>? AdditionalServiceRegistration { get; set; }
 
     public CorsPolicyOptions? CorsPolicyOptions { get; set; }
+
+    public ClientCertificateMode ClientCertificateMode { get; set; }
+
+    /// <inheritdoc />
+    public bool AcceptAnyClientCertificate { get; set; }
 #endif
 
     /// <inheritdoc cref="IWireMockMiddlewareOptions.FileSystemHandler"/>

src/WireMock.Net/Owin/WireMockMiddlewareOptionsHelper.cs

@@ -0,0 +1,35 @@
+using Stef.Validation;
+using WireMock.Settings;
+
+namespace WireMock.Owin;
+
+internal static class WireMockMiddlewareOptionsHelper
+{
+    public static IWireMockMiddlewareOptions InitFromSettings(WireMockServerSettings settings, IWireMockMiddlewareOptions? options = null)
+    {
+        Guard.NotNull(settings);
+
+        options ??= new WireMockMiddlewareOptions();
+
+        options.FileSystemHandler = settings.FileSystemHandler;
+        options.PreWireMockMiddlewareInit = settings.PreWireMockMiddlewareInit;
+        options.PostWireMockMiddlewareInit = settings.PostWireMockMiddlewareInit;
+        options.Logger = settings.Logger;
+        options.DisableJsonBodyParsing = settings.DisableJsonBodyParsing;
+        options.HandleRequestsSynchronously = settings.HandleRequestsSynchronously;
+        options.SaveUnmatchedRequests = settings.SaveUnmatchedRequests;
+        options.DoNotSaveDynamicResponseInLogEntry = settings.DoNotSaveDynamicResponseInLogEntry;
+        options.QueryParameterMultipleValueSupport = settings.QueryParameterMultipleValueSupport;
+
+        if (settings.CustomCertificateDefined)
+        {
+            options.X509StoreName = settings.CertificateSettings!.X509StoreName;
+            options.X509StoreLocation = settings.CertificateSettings.X509StoreLocation;
+            options.X509ThumbprintOrSubjectName = settings.CertificateSettings.X509StoreThumbprintOrSubjectName;
+            options.X509CertificateFilePath = settings.CertificateSettings.X509CertificateFilePath;
+            options.X509CertificatePassword = settings.CertificateSettings.X509CertificatePassword;
+        }
+
+        return options;
+    }
+}

src/WireMock.Net/Proxy/ProxyHelper.cs

@@ -1,8 +1,10 @@
 using System;
+using System.Linq;
 using System.Net.Http;
 using System.Threading.Tasks;
 using Stef.Validation;
 using WireMock.Http;
+using WireMock.Matchers;
 using WireMock.Serialization;
 using WireMock.Settings;
 using WireMock.Util;
@@ -17,7 +19,7 @@ internal class ProxyHelper
     public ProxyHelper(WireMockServerSettings settings)
     {
         _settings = Guard.NotNull(settings);
-        _proxyMappingConverter = new ProxyMappingConverter(settings, new GuidUtils());
+        _proxyMappingConverter = new ProxyMappingConverter(settings, new GuidUtils(), new DateTimeUtils());
     }
 
     public async Task<(IResponseMessage Message, IMapping? Mapping)> SendAsync(
@@ -47,12 +49,33 @@ internal class ProxyHelper
         var responseMessage = await HttpResponseMessageHelper.CreateAsync(httpResponseMessage, requiredUri, originalUri, deserializeJson, decompressGzipAndDeflate).ConfigureAwait(false);
 
         IMapping? newMapping = null;
-        if (HttpStatusRangeParser.IsMatch(proxyAndRecordSettings.SaveMappingForStatusCodePattern, responseMessage.StatusCode) &&
-            (proxyAndRecordSettings.SaveMapping || proxyAndRecordSettings.SaveMappingToFile))
+
+        var saveMappingSettings = proxyAndRecordSettings.SaveMappingSettings;
+
+        bool save = true;
+        if (saveMappingSettings != null)
+        {
+            save &= Check(saveMappingSettings.StatusCodePattern,
+                () => HttpStatusRangeParser.IsMatch(saveMappingSettings.StatusCodePattern, responseMessage.StatusCode)
+            );
+
+            save &= Check(saveMappingSettings.HttpMethods,
+                () => saveMappingSettings.HttpMethods.Value.Contains(requestMessage.Method, StringComparer.OrdinalIgnoreCase)
+            );
+        }
+
+        if (save && (proxyAndRecordSettings.SaveMapping || proxyAndRecordSettings.SaveMappingToFile))
         {
             newMapping = _proxyMappingConverter.ToMapping(mapping, proxyAndRecordSettings, requestMessage, responseMessage);
         }
 
         return (responseMessage, newMapping);
     }
+
+    private static bool Check<T>(ProxySaveMappingSetting<T>? saveMappingSetting, Func<bool> action)
+    {
+        var isMatch = saveMappingSetting is null || action();
+        var matchBehaviour = saveMappingSetting?.MatchBehaviour ?? MatchBehaviour.AcceptOnMatch;
+        return isMatch == (matchBehaviour == MatchBehaviour.AcceptOnMatch);
+    }
 }

src/WireMock.Net/RequestBuilders/IBodyRequestBuilder.cs

@@ -1,4 +1,5 @@
 using System;
+using System.Collections.Generic;
 using WireMock.Matchers;
 using WireMock.Matchers.Request;
 using WireMock.Util;
@@ -54,26 +55,33 @@ public interface IBodyRequestBuilder : IRequestMatcher
     /// </summary>
     /// <param name="func">The function.</param>
     /// <returns>The <see cref="IRequestBuilder"/>.</returns>
-    IRequestBuilder WithBody(Func<string, bool> func);
+    IRequestBuilder WithBody(Func<string?, bool> func);
 
     /// <summary>
     /// WithBody: func (byte[])
     /// </summary>
     /// <param name="func">The function.</param>
     /// <returns>The <see cref="IRequestBuilder"/>.</returns>
-    IRequestBuilder WithBody(Func<byte[], bool> func);
+    IRequestBuilder WithBody(Func<byte[]?, bool> func);
 
     /// <summary>
     /// WithBody: func (json object)
     /// </summary>
     /// <param name="func">The function.</param>
     /// <returns>The <see cref="IRequestBuilder"/>.</returns>
-    IRequestBuilder WithBody(Func<object, bool> func);
+    IRequestBuilder WithBody(Func<object?, bool> func);
 
     /// <summary>
     /// WithBody: func (BodyData object)
     /// </summary>
     /// <param name="func">The function.</param>
     /// <returns>The <see cref="IRequestBuilder"/>.</returns>
-    IRequestBuilder WithBody(Func<IBodyData, bool> func);
+    IRequestBuilder WithBody(Func<IBodyData?, bool> func);
+
+    /// <summary>
+    /// WithBody: Body as form-urlencoded values.
+    /// </summary>
+    /// <param name="func">The form-urlencoded values.</param>
+    /// <returns>The <see cref="IRequestBuilder"/>.</returns>
+    IRequestBuilder WithBody(Func<IDictionary<string, string>?, bool> func);
 }

src/WireMock.Net/RequestBuilders/ICookiesRequestBuilder.cs

@@ -1,85 +1,83 @@
-using JetBrains.Annotations;
 using System;
 using System.Collections.Generic;
 using WireMock.Matchers;
 
-namespace WireMock.RequestBuilders
+namespace WireMock.RequestBuilders;
+
+/// <summary>
+/// The CookieRequestBuilder interface.
+/// </summary>
+public interface ICookiesRequestBuilder : IParamsRequestBuilder
 {
     /// <summary>
-    /// The CookieRequestBuilder interface.
+    /// WithCookie: matching based on name, pattern and matchBehaviour.
     /// </summary>
-    public interface ICookiesRequestBuilder : IParamsRequestBuilder
-    {
-        /// <summary>
-        /// WithCookie: matching based on name, pattern and matchBehaviour.
-        /// </summary>
-        /// <param name="name">The name.</param>
-        /// <param name="pattern">The pattern.</param>
-        /// <param name="matchBehaviour">The match behaviour.</param>
-        /// <returns>The <see cref="IRequestBuilder"/>.</returns>
-        IRequestBuilder WithCookie([NotNull] string name, string pattern, MatchBehaviour matchBehaviour);
+    /// <param name="name">The name.</param>
+    /// <param name="pattern">The pattern.</param>
+    /// <param name="matchBehaviour">The match behaviour.</param>
+    /// <returns>The <see cref="IRequestBuilder"/>.</returns>
+    IRequestBuilder WithCookie(string name, string pattern, MatchBehaviour matchBehaviour);
 
-        /// <summary>
-        /// WithCookie: matching based on name, pattern, ignoreCase and matchBehaviour.
-        /// </summary>
-        /// <param name="name">The name.</param>
-        /// <param name="pattern">The pattern.</param>
-        /// <param name="ignoreCase">Ignore the case from the pattern.</param>
-        /// <param name="matchBehaviour">The match behaviour.</param>
-        /// <returns>The <see cref="IRequestBuilder"/>.</returns>
-        IRequestBuilder WithCookie([NotNull] string name, string pattern, bool ignoreCase = true, MatchBehaviour matchBehaviour = MatchBehaviour.AcceptOnMatch);
+    /// <summary>
+    /// WithCookie: matching based on name, pattern, ignoreCase and matchBehaviour.
+    /// </summary>
+    /// <param name="name">The name.</param>
+    /// <param name="pattern">The pattern.</param>
+    /// <param name="ignoreCase">Ignore the case from the pattern.</param>
+    /// <param name="matchBehaviour">The match behaviour.</param>
+    /// <returns>The <see cref="IRequestBuilder"/>.</returns>
+    IRequestBuilder WithCookie(string name, string pattern, bool ignoreCase = true, MatchBehaviour matchBehaviour = MatchBehaviour.AcceptOnMatch);
 
-        /// <summary>
-        /// WithCookie: matching based on name, patterns and matchBehaviour.
-        /// </summary>
-        /// <param name="name">The name.</param>
-        /// <param name="patterns">The patterns.</param>
-        /// <param name="matchBehaviour">The match behaviour.</param>
-        /// <returns>The <see cref="IRequestBuilder"/>.</returns>
-        IRequestBuilder WithCookie([NotNull] string name, string[] patterns, MatchBehaviour matchBehaviour);
+    /// <summary>
+    /// WithCookie: matching based on name, patterns and matchBehaviour.
+    /// </summary>
+    /// <param name="name">The name.</param>
+    /// <param name="patterns">The patterns.</param>
+    /// <param name="matchBehaviour">The match behaviour.</param>
+    /// <returns>The <see cref="IRequestBuilder"/>.</returns>
+    IRequestBuilder WithCookie(string name, string[] patterns, MatchBehaviour matchBehaviour);
 
-        /// <summary>
-        /// WithCookie: matching based on name, patterns, ignoreCase and matchBehaviour.
-        /// </summary>
-        /// <param name="name">The name.</param>
-        /// <param name="patterns">The patterns.</param>
-        /// <param name="ignoreCase">Ignore the case from the pattern.</param>
-        /// <param name="matchBehaviour">The match behaviour.</param>
-        /// <returns>The <see cref="IRequestBuilder"/>.</returns>
-        IRequestBuilder WithCookie([NotNull] string name, string[] patterns, bool ignoreCase = true, MatchBehaviour matchBehaviour = MatchBehaviour.AcceptOnMatch);
+    /// <summary>
+    /// WithCookie: matching based on name, patterns, ignoreCase and matchBehaviour.
+    /// </summary>
+    /// <param name="name">The name.</param>
+    /// <param name="patterns">The patterns.</param>
+    /// <param name="ignoreCase">Ignore the case from the pattern.</param>
+    /// <param name="matchBehaviour">The match behaviour.</param>
+    /// <returns>The <see cref="IRequestBuilder"/>.</returns>
+    IRequestBuilder WithCookie(string name, string[] patterns, bool ignoreCase = true, MatchBehaviour matchBehaviour = MatchBehaviour.AcceptOnMatch);
 
-        /// <summary>
-        /// WithCookie: matching based on name and IStringMatcher[].
-        /// </summary>
-        /// <param name="name">The name.</param>
-        /// <param name="matchers">The matchers.</param>
-        /// <returns>The <see cref="IRequestBuilder"/>.</returns>
-        IRequestBuilder WithCookie([NotNull] string name, [NotNull] params IStringMatcher[] matchers);
+    /// <summary>
+    /// WithCookie: matching based on name and IStringMatcher[].
+    /// </summary>
+    /// <param name="name">The name.</param>
+    /// <param name="matchers">The matchers.</param>
+    /// <returns>The <see cref="IRequestBuilder"/>.</returns>
+    IRequestBuilder WithCookie(string name, params IStringMatcher[] matchers);
 
-        /// <summary>
-        /// WithCookie: matching based on name, ignoreCase and IStringMatcher[].
-        /// </summary>
-        /// <param name="name">The name.</param>
-        /// <param name="ignoreCase">Ignore the case from the cookie-keys.</param>
-        /// <param name="matchers">The matchers.</param>
-        /// <returns>The <see cref="IRequestBuilder"/>.</returns>
-        IRequestBuilder WithCookie([NotNull] string name, bool ignoreCase, [NotNull] params IStringMatcher[] matchers);
+    /// <summary>
+    /// WithCookie: matching based on name, ignoreCase and IStringMatcher[].
+    /// </summary>
+    /// <param name="name">The name.</param>
+    /// <param name="ignoreCase">Ignore the case from the cookie-keys.</param>
+    /// <param name="matchers">The matchers.</param>
+    /// <returns>The <see cref="IRequestBuilder"/>.</returns>
+    IRequestBuilder WithCookie(string name, bool ignoreCase, params IStringMatcher[] matchers);
 
-        /// <summary>
-        /// WithCookie: matching based on name, ignoreCase, matchBehaviour and IStringMatcher[].
-        /// </summary>
-        /// <param name="name">The name.</param>
-        /// <param name="ignoreCase">Ignore the case from the cookie-keys.</param>
-        /// <param name="matchBehaviour">The match behaviour.</param>
-        /// <param name="matchers">The matchers.</param>
-        /// <returns>The <see cref="IRequestBuilder"/>.</returns>
-        IRequestBuilder WithCookie([NotNull] string name, bool ignoreCase, MatchBehaviour matchBehaviour, [NotNull] params IStringMatcher[] matchers);
+    /// <summary>
+    /// WithCookie: matching based on name, ignoreCase, matchBehaviour and IStringMatcher[].
+    /// </summary>
+    /// <param name="name">The name.</param>
+    /// <param name="ignoreCase">Ignore the case from the cookie-keys.</param>
+    /// <param name="matchBehaviour">The match behaviour.</param>
+    /// <param name="matchers">The matchers.</param>
+    /// <returns>The <see cref="IRequestBuilder"/>.</returns>
+    IRequestBuilder WithCookie(string name, bool ignoreCase, MatchBehaviour matchBehaviour, params IStringMatcher[] matchers);
 
-        /// <summary>
-        /// WithCookie: matching based on functions.
-        /// </summary>
-        /// <param name="funcs">The cookies funcs.</param>
-        /// <returns>The <see cref="IRequestBuilder"/>.</returns>
-        IRequestBuilder WithCookie([NotNull] params Func<IDictionary<string, string>, bool>[] funcs);
-    }
+    /// <summary>
+    /// WithCookie: matching based on functions.
+    /// </summary>
+    /// <param name="funcs">The cookies funcs.</param>
+    /// <returns>The <see cref="IRequestBuilder"/>.</returns>
+    IRequestBuilder WithCookie(params Func<IDictionary<string, string>, bool>[] funcs);
 }

src/WireMock.Net/RequestBuilders/Request.WithBody.cs

@@ -1,6 +1,7 @@
 // This source file is based on mock4net by Alexandre Victoor which is licensed under the Apache 2.0 License.
 // For more details see 'mock4net/LICENSE.txt' and 'mock4net/readme.md' in this project root.
 using System;
+using System.Collections.Generic;
 using WireMock.Matchers;
 using WireMock.Matchers.Request;
 using WireMock.Util;
@@ -10,21 +11,21 @@ namespace WireMock.RequestBuilders;
 
 public partial class Request
 {
-    /// <inheritdoc cref="IBodyRequestBuilder.WithBody(string, MatchBehaviour)"/>
+    /// <inheritdoc />
     public IRequestBuilder WithBody(string body, MatchBehaviour matchBehaviour = MatchBehaviour.AcceptOnMatch)
     {
         _requestMatchers.Add(new RequestMessageBodyMatcher(matchBehaviour, body));
         return this;
     }
 
-    /// <inheritdoc cref="IBodyRequestBuilder.WithBody(byte[], MatchBehaviour)"/>
+    /// <inheritdoc />
     public IRequestBuilder WithBody(byte[] body, MatchBehaviour matchBehaviour = MatchBehaviour.AcceptOnMatch)
     {
         _requestMatchers.Add(new RequestMessageBodyMatcher(matchBehaviour, body));
         return this;
     }
 
-    /// <inheritdoc cref="IBodyRequestBuilder.WithBody(object, MatchBehaviour)"/>
+    /// <inheritdoc />
     public IRequestBuilder WithBody(object body, MatchBehaviour matchBehaviour = MatchBehaviour.AcceptOnMatch)
     {
         _requestMatchers.Add(new RequestMessageBodyMatcher(matchBehaviour, body));
@@ -46,39 +47,46 @@ public partial class Request
         return this;
     }
 
-    /// <inheritdoc cref="IBodyRequestBuilder.WithBody(Func{string, bool})"/>
-    public IRequestBuilder WithBody(Func<string, bool> func)
+    /// <inheritdoc />
+    public IRequestBuilder WithBody(Func<string?, bool> func)
     {
-        Guard.NotNull(func, nameof(func));
+        Guard.NotNull(func);
 
         _requestMatchers.Add(new RequestMessageBodyMatcher(func));
         return this;
     }
 
-    /// <inheritdoc cref="IBodyRequestBuilder.WithBody(Func{byte[], bool})"/>
-    public IRequestBuilder WithBody(Func<byte[], bool> func)
+    /// <inheritdoc />
+    public IRequestBuilder WithBody(Func<byte[]?, bool> func)
     {
-        Guard.NotNull(func, nameof(func));
+        Guard.NotNull(func);
 
         _requestMatchers.Add(new RequestMessageBodyMatcher(func));
         return this;
     }
 
-    /// <inheritdoc cref="IBodyRequestBuilder.WithBody(Func{object, bool})"/>
-    public IRequestBuilder WithBody(Func<object, bool> func)
+    /// <inheritdoc />
+    public IRequestBuilder WithBody(Func<object?, bool> func)
     {
-        Guard.NotNull(func, nameof(func));
+        Guard.NotNull(func);
 
         _requestMatchers.Add(new RequestMessageBodyMatcher(func));
         return this;
     }
 
-    /// <inheritdoc cref="IBodyRequestBuilder.WithBody(Func{IBodyData, bool})"/>
-    public IRequestBuilder WithBody(Func<IBodyData, bool> func)
+    /// <inheritdoc />
+    public IRequestBuilder WithBody(Func<IBodyData?, bool> func)
     {
-        Guard.NotNull(func, nameof(func));
+        Guard.NotNull(func);
 
         _requestMatchers.Add(new RequestMessageBodyMatcher(func));
         return this;
     }
+
+    /// <inheritdoc />
+    public IRequestBuilder WithBody(Func<IDictionary<string, string>?, bool> func)
+    {
+        _requestMatchers.Add(new RequestMessageBodyMatcher(Guard.NotNull(func)));
+        return this;
+    }
 }

src/WireMock.Net/RequestMessage.cs

@@ -4,6 +4,9 @@ using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Net;
+#if USE_ASPNETCORE
+using System.Security.Cryptography.X509Certificates;
+#endif
 using Stef.Validation;
 using WireMock.Models;
 using WireMock.Owin;
@@ -53,9 +56,12 @@ public class RequestMessage : IRequestMessage
     /// <inheritdoc cref="IRequestMessage.Cookies" />
     public IDictionary<string, string>? Cookies { get; }
 
-    /// <inheritdoc cref="IRequestMessage.Query" />
+    /// <inheritdoc />
     public IDictionary<string, WireMockList<string>>? Query { get; }
 
+    /// <inheritdoc />
+    public IDictionary<string, WireMockList<string>>? QueryIgnoreCase { get; }
+    
     /// <inheritdoc cref="IRequestMessage.RawQuery" />
     public string RawQuery { get; }
 
@@ -92,6 +98,11 @@ public class RequestMessage : IRequestMessage
     /// <inheritdoc cref="IRequestMessage.Origin" />
     public string Origin { get; }
 
+#if USE_ASPNETCORE
+    /// <inheritdoc cref="IRequestMessage.ClientCertificate" />
+    public X509Certificate2? ClientCertificate { get; }
+#endif
+
     /// <summary>
     /// Used for Unit Testing
     /// </summary>
@@ -115,13 +126,20 @@ public class RequestMessage : IRequestMessage
     /// <param name="bodyData">The BodyData.</param>
     /// <param name="headers">The headers.</param>
     /// <param name="cookies">The cookies.</param>
+#if USE_ASPNETCORE
+    /// <param name="clientCertificate">The client certificate</param>
+#endif
     internal RequestMessage(
         IWireMockMiddlewareOptions? options,
         UrlDetails urlDetails, string method,
         string clientIP,
         IBodyData? bodyData = null,
         IDictionary<string, string[]>? headers = null,
-        IDictionary<string, string>? cookies = null)
+        IDictionary<string, string>? cookies = null
+#if USE_ASPNETCORE
+        , X509Certificate2? clientCertificate = null
+#endif
+        )
     {
         Guard.NotNull(urlDetails, nameof(urlDetails));
         Guard.NotNull(method, nameof(method));
@@ -156,6 +174,10 @@ public class RequestMessage : IRequestMessage
         Cookies = cookies;
         RawQuery = urlDetails.Url.Query;
         Query = QueryStringParser.Parse(RawQuery, options?.QueryParameterMultipleValueSupport);
+        QueryIgnoreCase = new Dictionary<string, WireMockList<string>>(Query, StringComparer.OrdinalIgnoreCase);
+#if USE_ASPNETCORE
+        ClientCertificate = clientCertificate;
+#endif
     }
 
     /// <summary>

src/WireMock.Net/ResponseBuilders/IBodyResponseBuilder.cs

@@ -29,7 +29,7 @@ public interface IBodyResponseBuilder : IFaultResponseBuilder
     IResponseBuilder WithBody(Func<IRequestMessage, string> bodyFactory, string? destination = BodyDestinationFormat.SameAsSource, Encoding? encoding = null);
 
     /// <summary>
-    /// WithBody : Create a ... response based on a callback function.
+    /// WithBody : Create a ... response based on a async callback function.
     /// </summary>
     /// <param name="bodyFactory">The async delegate to build the body.</param>
     /// <param name="destination">The Body Destination format (SameAsSource, String or Bytes).</param>
@@ -51,7 +51,7 @@ public interface IBodyResponseBuilder : IFaultResponseBuilder
     /// </summary>
     /// <param name="body">The body.</param>
     /// <param name="encoding">The body encoding.</param>
-    /// <param name="indented">Use JSON indented.</param>
+    /// <param name="indented">Define whether child objects to be indented according to the Newtonsoft.Json.JsonTextWriter.Indentation and Newtonsoft.Json.JsonTextWriter.IndentChar settings.</param>
     /// <returns>A <see cref="IResponseBuilder"/>.</returns>
     IResponseBuilder WithBodyAsJson(object body, Encoding? encoding = null, bool? indented = null);
 
@@ -63,6 +63,22 @@ public interface IBodyResponseBuilder : IFaultResponseBuilder
     /// <returns>A <see cref="IResponseBuilder"/>.</returns>
     IResponseBuilder WithBodyAsJson(object body, bool indented);
 
+    /// <summary>
+    /// WithBodyAsJson : Create a ... response based on a callback function.
+    /// </summary>
+    /// <param name="bodyFactory">The delegate to build the body.</param>
+    /// <param name="encoding">The body encoding.</param>
+    /// <returns>A <see cref="IResponseBuilder"/>.</returns>
+    IResponseBuilder WithBodyAsJson(Func<IRequestMessage, object> bodyFactory, Encoding? encoding = null);
+
+    /// <summary>
+    /// WithBodyAsJson : Create a ... response based on a async callback function.
+    /// </summary>
+    /// <param name="bodyFactory">The async delegate to build the body.</param>
+    /// <param name="encoding">The body encoding.</param>
+    /// <returns>A <see cref="IResponseBuilder"/>.</returns>
+    IResponseBuilder WithBodyAsJson(Func<IRequestMessage, Task<object>> bodyFactory, Encoding? encoding = null);
+
     /// <summary>
     /// WithBodyFromFile : Create a ... response based on a File.
     /// </summary>

src/WireMock.Net/ResponseBuilders/IProxyResponseBuilder.cs

@@ -1,4 +1,4 @@
-using JetBrains.Annotations;
+using System.Security.Cryptography.X509Certificates;
 using WireMock.Settings;
 
 namespace WireMock.ResponseBuilders;
@@ -17,9 +17,17 @@ public interface IProxyResponseBuilder : IStatusCodeResponseBuilder
     IResponseBuilder WithProxy(string proxyUrl, string? clientX509Certificate2ThumbprintOrSubjectName = null);
 
     /// <summary>
-    /// WithProxy using IProxyAndRecordSettings.
+    /// WithProxy using <see cref="ProxyAndRecordSettings"/>.
     /// </summary>
-    /// <param name="settings">The IProxyAndRecordSettings.</param>
+    /// <param name="settings">The ProxyAndRecordSettings.</param>
     /// <returns>A <see cref="IResponseBuilder"/>.</returns>
-    IResponseBuilder WithProxy([NotNull] ProxyAndRecordSettings settings);
+    IResponseBuilder WithProxy(ProxyAndRecordSettings settings);
+
+    /// <summary>
+    /// WithProxy using <see cref="X509Certificate2"/>.
+    /// </summary>
+    /// <param name="proxyUrl">The proxy url.</param>
+    /// <param name="certificate"">The X509Certificate2.</param>
+    /// <returns>A <see cref="IResponseBuilder"/>.</returns>
+    IResponseBuilder WithProxy(string proxyUrl, X509Certificate2 certificate);
 }

src/WireMock.Net/ResponseBuilders/ITransformResponseBuilder.cs

@@ -29,5 +29,5 @@ public interface ITransformResponseBuilder : IDelayResponseBuilder
     /// <returns>
     /// The <see cref="IResponseBuilder"/>.
     /// </returns>
-    IResponseBuilder WithTransformer(TransformerType transformerType = TransformerType.Handlebars, bool transformContentFromBodyAsFile = false, ReplaceNodeOptions options = ReplaceNodeOptions.None);
+    IResponseBuilder WithTransformer(TransformerType transformerType = TransformerType.Handlebars, bool transformContentFromBodyAsFile = false, ReplaceNodeOptions options = ReplaceNodeOptions.Evaluate);
 }

src/WireMock.Net/ResponseBuilders/Response.WithBody.cs

@@ -13,7 +13,7 @@ public partial class Response
     /// <inheritdoc />
     public IResponseBuilder WithBody(Func<IRequestMessage, string> bodyFactory, string? destination = BodyDestinationFormat.SameAsSource, Encoding? encoding = null)
     {
-        Guard.NotNull(bodyFactory, nameof(bodyFactory));
+        Guard.NotNull(bodyFactory);
 
         return WithCallbackInternal(true, req => new ResponseMessage
         {
@@ -30,7 +30,7 @@ public partial class Response
     /// <inheritdoc />
     public IResponseBuilder WithBody(Func<IRequestMessage, Task<string>> bodyFactory, string? destination = BodyDestinationFormat.SameAsSource, Encoding? encoding = null)
     {
-        Guard.NotNull(bodyFactory, nameof(bodyFactory));
+        Guard.NotNull(bodyFactory);
 
         return WithCallbackInternal(true, async req => new ResponseMessage
         {
@@ -70,7 +70,7 @@ public partial class Response
         return this;
     }
 
-    /// <inheritdoc cref="IBodyResponseBuilder.WithBodyFromFile"/>
+    /// <inheritdoc />
     public IResponseBuilder WithBodyFromFile(string filename, bool cache = true)
     {
         Guard.NotNull(filename);
@@ -127,7 +127,7 @@ public partial class Response
         return this;
     }
 
-    /// <inheritdoc cref="IBodyResponseBuilder.WithBodyAsJson(object, Encoding, bool?)"/>
+    /// <inheritdoc />
     public IResponseBuilder WithBodyAsJson(object body, Encoding? encoding = null, bool? indented = null)
     {
         Guard.NotNull(body);
@@ -144,12 +144,46 @@ public partial class Response
         return this;
     }
 
-    /// <inheritdoc cref="IBodyResponseBuilder.WithBodyAsJson(object, bool)"/>
+    /// <inheritdoc />
     public IResponseBuilder WithBodyAsJson(object body, bool indented)
     {
         return WithBodyAsJson(body, null, indented);
     }
 
+    /// <inheritdoc />
+    public IResponseBuilder WithBodyAsJson(Func<IRequestMessage, object> bodyFactory, Encoding? encoding = null)
+    {
+        Guard.NotNull(bodyFactory);
+
+        return WithCallbackInternal(true, req => new ResponseMessage
+        {
+            BodyData = new BodyData
+            {
+                Encoding = encoding ?? Encoding.UTF8,
+                DetectedBodyType = BodyType.Json,
+                BodyAsJson = bodyFactory(req),
+                IsFuncUsed = "Func<IRequestMessage, object>"
+            }
+        });
+    }
+
+    /// <inheritdoc />
+    public IResponseBuilder WithBodyAsJson(Func<IRequestMessage, Task<object>> bodyFactory, Encoding? encoding = null)
+    {
+        Guard.NotNull(bodyFactory);
+
+        return WithCallbackInternal(true, async req => new ResponseMessage
+        {
+            BodyData = new BodyData
+            {
+                Encoding = encoding ?? Encoding.UTF8,
+                DetectedBodyType = BodyType.Json,
+                BodyAsJson = await bodyFactory(req).ConfigureAwait(false),
+                IsFuncUsed = "Func<IRequestMessage, Task<object>>"
+            }
+        });
+    }
+
     /// <inheritdoc />
     public IResponseBuilder WithBody(object body, IJsonConverter converter, JsonConverterOptions? options = null)
     {

src/WireMock.Net/ResponseBuilders/Response.WithProxy.cs

@@ -2,6 +2,7 @@ using System.Net.Http;
 using WireMock.Http;
 using WireMock.Settings;
 using Stef.Validation;
+using System.Security.Cryptography.X509Certificates;
 
 namespace WireMock.ResponseBuilders;
 
@@ -38,4 +39,19 @@ public partial class Response
         _httpClientForProxy = HttpClientBuilder.Build(settings);
         return this;
     }
+
+    /// <inheritdoc />
+    public IResponseBuilder WithProxy(string proxyUrl, X509Certificate2 certificate)
+    {
+        Guard.NotNullOrEmpty(proxyUrl);
+        Guard.NotNull(certificate);
+
+        var settings = new ProxyAndRecordSettings
+        {
+            Url = proxyUrl,
+            Certificate = certificate
+        };
+
+        return WithProxy(settings);
+    }
 }

src/WireMock.Net/ResponseBuilders/Response.cs

@@ -107,14 +107,12 @@ public partial class Response : IResponseBuilder
     /// <summary>
     /// Initializes a new instance of the <see cref="Response"/> class.
     /// </summary>
-    /// <param name="responseMessage">
-    /// The response.
-    /// </param>
+    /// <param name="responseMessage">The response.</param>
     private Response(ResponseMessage responseMessage)
     {
         ResponseMessage = responseMessage;
     }
-
+    
     /// <inheritdoc cref="IStatusCodeResponseBuilder.WithStatusCode(int)"/>
     [PublicAPI]
     public IResponseBuilder WithStatusCode(int code)
@@ -207,7 +205,7 @@ public partial class Response : IResponseBuilder
     }
 
     /// <inheritdoc />
-    public IResponseBuilder WithTransformer(TransformerType transformerType, bool transformContentFromBodyAsFile = false, ReplaceNodeOptions options = ReplaceNodeOptions.None)
+    public IResponseBuilder WithTransformer(TransformerType transformerType, bool transformContentFromBodyAsFile = false, ReplaceNodeOptions options = ReplaceNodeOptions.Evaluate)
     {
         UseTransformer = true;
         TransformerType = transformerType;
@@ -314,14 +312,14 @@ public partial class Response : IResponseBuilder
             switch (TransformerType)
             {
                 case TransformerType.Handlebars:
-                    var factoryHandlebars = new HandlebarsContextFactory(settings.FileSystemHandler, settings.HandlebarsRegistrationCallback);
-                    responseMessageTransformer = new Transformer(factoryHandlebars);
+                    var factoryHandlebars = new HandlebarsContextFactory(settings);
+                    responseMessageTransformer = new Transformer(settings, factoryHandlebars);
                     break;
 
                 case TransformerType.Scriban:
                 case TransformerType.ScribanDotLiquid:
                     var factoryDotLiquid = new ScribanContextFactory(settings.FileSystemHandler, TransformerType);
-                    responseMessageTransformer = new Transformer(factoryDotLiquid);
+                    responseMessageTransformer = new Transformer(settings, factoryDotLiquid);
                     break;
 
                 default:

src/WireMock.Net/Serialization/MappingConverter.cs

@@ -1,9 +1,12 @@
 using System;
 using System.Collections.Generic;
 using System.Linq;
+using System.Text;
 using System.Threading;
 using Stef.Validation;
 using WireMock.Admin.Mappings;
+using WireMock.Constants;
+using WireMock.Extensions;
 using WireMock.Matchers;
 using WireMock.Matchers.Request;
 using WireMock.Models;
@@ -16,6 +19,8 @@ namespace WireMock.Serialization;
 
 internal class MappingConverter
 {
+    private static readonly string AcceptOnMatch = MatchBehaviour.AcceptOnMatch.GetFullyQualifiedEnumValue();
+
     private readonly MatcherMapper _mapper;
 
     public MappingConverter(MatcherMapper mapper)
@@ -23,6 +28,133 @@ internal class MappingConverter
         _mapper = Guard.NotNull(mapper);
     }
 
+    public string ToCSharpCode(IMapping mapping, MappingConverterSettings? settings = null)
+    {
+        settings ??= new MappingConverterSettings();
+
+        var request = (Request)mapping.RequestMatcher;
+        var response = (Response) mapping.Provider;
+
+        var clientIPMatcher = request.GetRequestMessageMatcher<RequestMessageClientIPMatcher>();
+        var pathMatcher = request.GetRequestMessageMatcher<RequestMessagePathMatcher>();
+        var urlMatcher = request.GetRequestMessageMatcher<RequestMessageUrlMatcher>();
+        var headerMatchers = request.GetRequestMessageMatchers<RequestMessageHeaderMatcher>();
+        var cookieMatchers = request.GetRequestMessageMatchers<RequestMessageCookieMatcher>();
+        var paramsMatchers = request.GetRequestMessageMatchers<RequestMessageParamMatcher>();
+        var methodMatcher = request.GetRequestMessageMatcher<RequestMessageMethodMatcher>();
+        var bodyMatcher = request.GetRequestMessageMatcher<RequestMessageBodyMatcher>();
+
+        var sb = new StringBuilder();
+
+        if (settings.ConverterType == MappingConverterType.Server)
+        {
+            if (settings.AddStart)
+            {
+                sb.AppendLine("var server = WireMockServer.Start();");
+            }
+            sb.AppendLine("server");
+        }
+        else
+        {
+            if (settings.AddStart)
+            {
+                sb.AppendLine("var builder = new MappingBuilder();");
+            }
+            sb.AppendLine("builder");
+        }
+
+        // Request
+        sb.AppendLine("    .Given(Request.Create()");
+        sb.AppendLine($"        .UsingMethod({To1Or2Or3Arguments(methodMatcher?.MatchBehaviour, methodMatcher?.MatchOperator, methodMatcher?.Methods, HttpRequestMethod.GET)})");
+
+        if (pathMatcher is { Matchers: { } })
+        {
+            sb.AppendLine($"        .WithPath({To1Or2Arguments(pathMatcher.MatchOperator, pathMatcher.Matchers)})");
+        }
+        else if (urlMatcher is { Matchers: { } })
+        {
+            sb.AppendLine($"        .WithUrl({To1Or2Arguments(urlMatcher.MatchOperator, urlMatcher.Matchers)})");
+        }
+
+        foreach (var paramsMatcher in paramsMatchers)
+        {
+            sb.AppendLine($"        .WithParam({To1Or2Or3Arguments(paramsMatcher.Key, paramsMatcher.MatchBehaviour, paramsMatcher.Matchers!)})");
+        }
+
+        if (clientIPMatcher is { Matchers: { } })
+        {
+            sb.AppendLine($"        .WithClientIP({ToValueArguments(GetStringArray(clientIPMatcher.Matchers))})");
+        }
+
+        foreach (var headerMatcher in headerMatchers.Where(h => h.Matchers is { }))
+        {
+            var headerBuilder = new StringBuilder($"\"{headerMatcher.Name}\", {ToValueArguments(GetStringArray(headerMatcher.Matchers!))}, true");
+            if (headerMatcher.MatchOperator != MatchOperator.Or)
+            {
+                headerBuilder.Append($"{AcceptOnMatch}, {headerMatcher.MatchOperator.GetFullyQualifiedEnumValue()}");
+            }
+            sb.AppendLine($"        .WithHeader({headerBuilder})");
+        }
+
+        foreach (var cookieMatcher in cookieMatchers.Where(h => h.Matchers is { }))
+        {
+            sb.AppendLine($"        .WithCookie(\"{cookieMatcher.Name}\", {ToValueArguments(GetStringArray(cookieMatcher.Matchers!))}, true)");
+        }
+
+        if (bodyMatcher is { Matchers: { } })
+        {
+            var wildcardMatcher = bodyMatcher.Matchers.OfType<WildcardMatcher>().FirstOrDefault();
+            if (wildcardMatcher is { } && wildcardMatcher.GetPatterns().Any())
+            {
+                sb.AppendLine($"        .WithBody({GetString(wildcardMatcher)})");
+            }
+        }
+
+        sb.AppendLine(@"    )");
+
+        // Guid
+        sb.AppendLine($"    .WithGuid(\"{mapping.Guid}\")");
+
+        // Response
+        sb.AppendLine("    .RespondWith(Response.Create()");
+
+        if (response.ResponseMessage.Headers is { })
+        {
+            foreach (var header in response.ResponseMessage.Headers)
+            {
+                sb.AppendLine($"        .WithHeader(\"{header.Key})\", {ToValueArguments(header.Value.ToArray())})");
+            }
+        }
+
+        if (response.ResponseMessage.BodyData is { })
+        {
+            switch (response.ResponseMessage.BodyData.DetectedBodyType)
+            {
+                case BodyType.String:
+                    sb.AppendLine($"        .WithBody(\"{response.ResponseMessage.BodyData.BodyAsString}\")");
+                    break;
+            }
+        }
+
+        if (response.Delay is { })
+        {
+            sb.AppendLine($"        .WithDelay({response.Delay.Value.TotalMilliseconds})");
+        }
+        else if (response.MinimumDelayMilliseconds > 0 && response.MaximumDelayMilliseconds > 0)
+        {
+            sb.AppendLine($"        .WithRandomDelay({response.MinimumDelayMilliseconds}, {response.MaximumDelayMilliseconds})");
+        }
+
+        if (response.UseTransformer)
+        {
+            var transformerArgs = response.TransformerType != TransformerType.Handlebars ? response.TransformerType.GetFullyQualifiedEnumValue() : string.Empty;
+            sb.AppendLine($"        .WithTransformer({transformerArgs})");
+        }
+        sb.AppendLine(@"    );");
+
+        return sb.ToString();
+    }
+
     public MappingModel ToMappingModel(IMapping mapping)
     {
         var request = (Request)mapping.RequestMatcher;
@@ -40,6 +172,7 @@ internal class MappingConverter
         var mappingModel = new MappingModel
         {
             Guid = mapping.Guid,
+            UpdatedAt = mapping.UpdatedAt,
             TimeSettings = TimeSettingsMapper.Map(mapping.TimeSettings),
             Title = mapping.Title,
             Description = mapping.Description,
@@ -48,6 +181,7 @@ internal class MappingConverter
             Scenario = mapping.Scenario,
             WhenStateIs = mapping.ExecutionConditionState,
             SetStateTo = mapping.NextState,
+            Data = mapping.Data,
             Request = new RequestModel
             {
                 Headers = headerMatchers.Any() ? headerMatchers.Select(hm => new HeaderModel
@@ -236,6 +370,64 @@ internal class MappingConverter
         return mappingModel;
     }
 
+    private static string GetString(IStringMatcher stringMatcher)
+    {
+        return stringMatcher.GetPatterns().Select(p => $"\"{p.GetPattern()}\"").First();
+    }
+
+    private static string[] GetStringArray(IReadOnlyList<IStringMatcher> stringMatchers)
+    {
+        return stringMatchers.SelectMany(m => m.GetPatterns()).Select(p => p.GetPattern()).ToArray();
+    }
+
+    private static string To1Or2Or3Arguments(string key, MatchBehaviour? matchBehaviour, IReadOnlyList<IStringMatcher> matchers)
+    {
+        var sb = new StringBuilder($"\"{key}\", ");
+
+        if (matchBehaviour.HasValue && matchBehaviour != MatchBehaviour.AcceptOnMatch)
+        {
+            sb.AppendFormat("{0}, ", matchBehaviour.Value.GetFullyQualifiedEnumValue());
+        }
+
+        sb.AppendFormat("{0}", ToValueArguments(GetStringArray(matchers), string.Empty));
+
+        return sb.ToString();
+    }
+
+    private static string To1Or2Or3Arguments(MatchBehaviour? matchBehaviour, MatchOperator? matchOperator, string[]? values, string defaultValue)
+    {
+        var sb = new StringBuilder();
+
+        if (matchBehaviour.HasValue && matchBehaviour != MatchBehaviour.AcceptOnMatch)
+        {
+            sb.AppendFormat("{0}, ", matchBehaviour.Value.GetFullyQualifiedEnumValue());
+        }
+
+        return To1Or2Arguments(matchOperator, values, defaultValue);
+    }
+
+    private static string To1Or2Arguments(MatchOperator? matchOperator, IReadOnlyList<IStringMatcher> matchers)
+    {
+        return To1Or2Arguments(matchOperator, GetStringArray(matchers), string.Empty);
+    }
+
+    private static string To1Or2Arguments(MatchOperator? matchOperator, string[]? values, string defaultValue)
+    {
+        var sb = new StringBuilder();
+
+        if (matchOperator.HasValue && matchOperator != MatchOperator.Or)
+        {
+            sb.AppendFormat("{0}, ", matchOperator.Value.GetFullyQualifiedEnumValue());
+        }
+
+        return sb.Append(ToValueArguments(values, defaultValue)).ToString();
+    }
+
+    private static string ToValueArguments(string[]? values, string defaultValue = "")
+    {
+        return values is { } ? string.Join(", ", values.Select(v => $"\"{v}\"")) : $"\"{defaultValue}\"";
+    }
+
     private static WebProxyModel? MapWebProxy(WebProxySettings? settings)
     {
         return settings != null ? new WebProxyModel

src/WireMock.Net/Serialization/MappingConverterSettings.cs

@@ -0,0 +1,25 @@
+using WireMock.Types;
+
+namespace WireMock.Serialization;
+
+/// <summary>
+/// MappingConverterSettings
+/// </summary>
+public class MappingConverterSettings
+{
+    /// <summary>
+    /// Use 'Server' or 'Builder'.
+    ///
+    /// Default is Server
+    /// </summary>
+    public MappingConverterType ConverterType { get; set; }
+
+    /// <summary>
+    /// Add "var server = WireMockServer.Start();"
+    /// or
+    /// Add "var builder = new MappingBuilder();"
+    ///
+    /// Default it's false.
+    /// </summary>
+    public bool AddStart { get; set; }
+}

src/WireMock.Net/Serialization/MappingToFileSaver.cs

@@ -17,6 +17,20 @@ internal class MappingToFileSaver
         _mappingConverter = Guard.NotNull(mappingConverter);
     }
 
+    public void SaveMappingsToFile(IMapping[] mappings, string? folder = null)
+    {
+        folder ??= _settings.FileSystemHandler.GetMappingFolder();
+
+        if (!_settings.FileSystemHandler.FolderExists(folder))
+        {
+            _settings.FileSystemHandler.CreateFolder(folder);
+        }
+
+        var models = mappings.Select(_mappingConverter.ToMappingModel).ToArray();
+
+        Save(models, folder);
+    }
+
     public void SaveMappingToFile(IMapping mapping, string? folder = null)
     {
         folder ??= _settings.FileSystemHandler.GetMappingFolder();
@@ -31,9 +45,14 @@ internal class MappingToFileSaver
         var filename = BuildSanitizedFileName(mapping);
         var path = Path.Combine(folder, filename);
 
+        Save(model, path);
+    }
+
+    private void Save(object value, string path)
+    {
         _settings.Logger.Info("Saving Mapping file {0}", path);
 
-        _settings.FileSystemHandler.WriteMappingFile(path, JsonConvert.SerializeObject(model, JsonSerializationConstants.JsonSerializerSettingsDefault));
+        _settings.FileSystemHandler.WriteMappingFile(path, JsonConvert.SerializeObject(value, JsonSerializationConstants.JsonSerializerSettingsDefault));
     }
 
     private string BuildSanitizedFileName(IMapping mapping, char replaceChar = '_')

src/WireMock.Net/Serialization/MatcherMapper.cs

@@ -3,6 +3,7 @@ using System.Collections.Generic;
 using System.Linq;
 using AnyOfTypes;
 using SimMetrics.Net;
+using Stef.Validation;
 using WireMock.Admin.Mappings;
 using WireMock.Extensions;
 using WireMock.Matchers;
@@ -19,7 +20,7 @@ internal class MatcherMapper
 
     public MatcherMapper(WireMockServerSettings settings)
     {
-        _settings = settings ?? throw new ArgumentNullException(nameof(settings));
+        _settings = Guard.NotNull(settings);
     }
 
     public IMatcher[]? Map(IEnumerable<MatcherModel>? matchers)

src/WireMock.Net/Serialization/ProxyMappingConverter.cs

@@ -1,7 +1,7 @@
-using Stef.Validation;
 using System;
 using System.Collections.Generic;
 using System.Linq;
+using Stef.Validation;
 using WireMock.Constants;
 using WireMock.Matchers;
 using WireMock.Matchers.Request;
@@ -17,15 +17,21 @@ internal class ProxyMappingConverter
 {
     private readonly WireMockServerSettings _settings;
     private readonly IGuidUtils _guidUtils;
+    private readonly IDateTimeUtils _dateTimeUtils;
 
-    public ProxyMappingConverter(WireMockServerSettings settings, IGuidUtils guidUtils)
+    public ProxyMappingConverter(WireMockServerSettings settings, IGuidUtils guidUtils, IDateTimeUtils dateTimeUtils)
     {
         _settings = Guard.NotNull(settings);
         _guidUtils = Guard.NotNull(guidUtils);
+        _dateTimeUtils = Guard.NotNull(dateTimeUtils);
     }
 
-    public IMapping ToMapping(IMapping? mapping, ProxyAndRecordSettings proxyAndRecordSettings, IRequestMessage requestMessage, ResponseMessage responseMessage)
+    public IMapping? ToMapping(IMapping? mapping, ProxyAndRecordSettings proxyAndRecordSettings, IRequestMessage requestMessage, ResponseMessage responseMessage)
     {
+        var useDefinedRequestMatchers = proxyAndRecordSettings.UseDefinedRequestMatchers;
+        var excludedHeaders = new List<string>(proxyAndRecordSettings.ExcludedHeaders ?? new string[] { }) { "Cookie" };
+        var excludedCookies = proxyAndRecordSettings.ExcludedCookies ?? new string[0];
+
         var request = (Request?)mapping?.RequestMatcher;
         var clientIPMatcher = request?.GetRequestMessageMatcher<RequestMessageClientIPMatcher>();
         var pathMatcher = request?.GetRequestMessageMatcher<RequestMessagePathMatcher>();
@@ -35,11 +41,6 @@ internal class ProxyMappingConverter
         var methodMatcher = request?.GetRequestMessageMatcher<RequestMessageMethodMatcher>();
         var bodyMatcher = request?.GetRequestMessageMatcher<RequestMessageBodyMatcher>();
 
-        var useDefinedRequestMatchers = proxyAndRecordSettings.UseDefinedRequestMatchers;
-
-        var excludedHeaders = new List<string>(proxyAndRecordSettings.ExcludedHeaders ?? new string[] { }) { "Cookie" };
-        var excludedCookies = proxyAndRecordSettings.ExcludedCookies ?? new string[] { };
-
         var newRequest = Request.Create();
 
         // ClientIP
@@ -162,6 +163,7 @@ internal class ProxyMappingConverter
         return new Mapping
         (
             guid: _guidUtils.NewGuid(),
+            updatedAt: _dateTimeUtils.UtcNow,
             title: title,
             description: description,
             path: null,
@@ -175,7 +177,8 @@ internal class ProxyMappingConverter
             stateTimes: null,
             webhooks: null,
             useWebhooksFireAndForget: null,
-            timeSettings: null
+            timeSettings: null,
+            data: mapping?.Data
         );
     }
 }

src/WireMock.Net/Serialization/WebhookMapper.cs

@@ -39,7 +39,7 @@ internal static class WebhookMapper
 
             if (!Enum.TryParse<ReplaceNodeOptions>(model.Request.TransformerReplaceNodeOptions, out var option))
             {
-                option = ReplaceNodeOptions.None;
+                option = ReplaceNodeOptions.Evaluate;
             }
             webhook.Request.TransformerReplaceNodeOptions = option;
         }

src/WireMock.Net/Server/IRespondWithAProvider.cs

@@ -166,4 +166,14 @@ public interface IRespondWithAProvider
         bool useTransformer = true,
         TransformerType transformerType = TransformerType.Handlebars
     );
+
+    /// <summary>
+    /// Data Object which can be used when WithTransformer is used.
+    /// e.g. lookup an path in this object using
+    /// <param name="data">The data dictionary object.</param>
+    /// <example>
+    /// lookup data "1"
+    /// </example>
+    /// </summary>
+    IRespondWithAProvider WithData(object data);
 }

src/WireMock.Net/Server/RespondWithAProvider.cs

@@ -2,6 +2,7 @@
 // For more details see 'mock4net/LICENSE.txt' and 'mock4net/readme.md' in this project root.
 using System;
 using System.Collections.Generic;
+using JetBrains.Annotations;
 using Stef.Validation;
 using WireMock.Matchers.Request;
 using WireMock.Models;
@@ -28,29 +29,44 @@ internal class RespondWithAProvider : IRespondWithAProvider
     private readonly RegistrationCallback _registrationCallback;
     private readonly IRequestMatcher _requestMatcher;
     private readonly WireMockServerSettings _settings;
+    private readonly IDateTimeUtils _dateTimeUtils;
     private readonly bool _saveToFile;
 
-    private bool _useWebhookFireAndForget;
+    private bool? _useWebhookFireAndForget;
 
-    public Guid Guid { get; private set; } = Guid.NewGuid();
+    public Guid Guid { get; private set; }
 
     public IWebhook[]? Webhooks { get; private set; }
 
     public ITimeSettings? TimeSettings { get; private set; }
 
+    public object? Data { get; private set; }
+
     /// <summary>
     /// Initializes a new instance of the <see cref="RespondWithAProvider"/> class.
     /// </summary>
     /// <param name="registrationCallback">The registration callback.</param>
     /// <param name="requestMatcher">The request matcher.</param>
     /// <param name="settings">The WireMockServerSettings.</param>
+    /// <param name="guidUtils">GuidUtils to make unit testing possible.</param>
+    /// <param name="dateTimeUtils">DateTimeUtils to make unit testing possible.</param>
     /// <param name="saveToFile">Optional boolean to indicate if this mapping should be saved as static mapping file.</param>
-    public RespondWithAProvider(RegistrationCallback registrationCallback, IRequestMatcher requestMatcher, WireMockServerSettings settings, bool saveToFile = false)
+    public RespondWithAProvider(
+        RegistrationCallback registrationCallback,
+        IRequestMatcher requestMatcher,
+        WireMockServerSettings settings,
+        IGuidUtils guidUtils,
+        IDateTimeUtils dateTimeUtils,
+        bool saveToFile = false
+    )
     {
-        _registrationCallback = registrationCallback;
-        _requestMatcher = requestMatcher;
-        _settings = settings;
+        _registrationCallback = Guard.NotNull(registrationCallback);
+        _requestMatcher = Guard.NotNull(requestMatcher);
+        _settings = Guard.NotNull(settings);
+        _dateTimeUtils = Guard.NotNull(dateTimeUtils);
         _saveToFile = saveToFile;
+
+        Guid = guidUtils.NewGuid();
     }
 
     /// <summary>
@@ -59,7 +75,34 @@ internal class RespondWithAProvider : IRespondWithAProvider
     /// <param name="provider">The provider.</param>
     public void RespondWith(IResponseProvider provider)
     {
-        _registrationCallback(new Mapping(Guid, _title, _description, _path, _settings, _requestMatcher, provider, _priority, _scenario, _executionConditionState, _nextState, _timesInSameState, Webhooks, _useWebhookFireAndForget, TimeSettings), _saveToFile);
+        var mapping = new Mapping(
+            Guid,
+            _dateTimeUtils.UtcNow,
+            _title,
+            _description,
+            _path,
+            _settings,
+            _requestMatcher,
+            provider,
+            _priority,
+            _scenario,
+            _executionConditionState,
+            _nextState,
+            _timesInSameState,
+            Webhooks,
+            _useWebhookFireAndForget,
+            TimeSettings,
+            Data);
+
+        _registrationCallback(mapping, _saveToFile);
+    }
+
+    /// <inheritdoc />
+    [PublicAPI]
+    public IRespondWithAProvider WithData(object data)
+    {
+        Data = data;
+        return this;
     }
 
     /// <inheritdoc />

src/WireMock.Net/Server/WireMockServer.Admin.cs

@@ -32,6 +32,7 @@ public partial class WireMockServer
     private const int EnhancedFileSystemWatcherTimeoutMs = 1000;
     private const string AdminFiles = "/__admin/files";
     private const string AdminMappings = "/__admin/mappings";
+    private const string AdminMappingsCode = "/__admin/mappings/code";
     private const string AdminMappingsWireMockOrg = "/__admin/mappings/wiremock.org";
     private const string AdminRequests = "/__admin/requests";
     private const string AdminSettings = "/__admin/settings";
@@ -41,6 +42,7 @@ public partial class WireMockServer
     private static readonly Guid ProxyMappingGuid = new("e59914fd-782e-428e-91c1-4810ffb86567");
     private static readonly RegexMatcher AdminRequestContentTypeJson = new ContentTypeMatcher(WireMockConstants.ContentTypeJson, true);
     private static readonly RegexMatcher AdminMappingsGuidPathMatcher = new(@"^\/__admin\/mappings\/([0-9A-Fa-f]{8}[-][0-9A-Fa-f]{4}[-][0-9A-Fa-f]{4}[-][0-9A-Fa-f]{4}[-][0-9A-Fa-f]{12})$");
+    private static readonly RegexMatcher AdminMappingsCodeGuidPathMatcher = new(@"^\/__admin\/mappings\/code\/([0-9A-Fa-f]{8}[-][0-9A-Fa-f]{4}[-][0-9A-Fa-f]{4}[-][0-9A-Fa-f]{4}[-][0-9A-Fa-f]{12})$");
     private static readonly RegexMatcher AdminRequestsGuidPathMatcher = new(@"^\/__admin\/requests\/([0-9A-Fa-f]{8}[-][0-9A-Fa-f]{4}[-][0-9A-Fa-f]{4}[-][0-9A-Fa-f]{4}[-][0-9A-Fa-f]{12})$");
     private static readonly RegexMatcher AdminScenariosNameMatcher = new(@"^\/__admin\/scenarios\/.+$");
     private static readonly RegexMatcher AdminScenariosNameWithResetMatcher = new(@"^\/__admin\/scenarios\/.+\/reset$");
@@ -57,9 +59,14 @@ public partial class WireMockServer
         // __admin/mappings
         Given(Request.Create().WithPath(AdminMappings).UsingGet()).AtPriority(WireMockConstants.AdminPriority).RespondWith(new DynamicResponseProvider(MappingsGet));
         Given(Request.Create().WithPath(AdminMappings).UsingPost().WithHeader(HttpKnownHeaderNames.ContentType, AdminRequestContentTypeJson)).AtPriority(WireMockConstants.AdminPriority).RespondWith(new DynamicResponseProvider(MappingsPost));
-        Given(Request.Create().WithPath(AdminMappingsWireMockOrg).UsingPost().WithHeader(HttpKnownHeaderNames.ContentType, AdminRequestContentTypeJson)).AtPriority(WireMockConstants.AdminPriority).RespondWith(new DynamicResponseProvider(MappingsPostWireMockOrg));
         Given(Request.Create().WithPath(AdminMappings).UsingDelete()).AtPriority(WireMockConstants.AdminPriority).RespondWith(new DynamicResponseProvider(MappingsDelete));
 
+        // __admin/mappings/code
+        Given(Request.Create().WithPath(AdminMappingsCode).UsingGet()).AtPriority(WireMockConstants.AdminPriority).RespondWith(new DynamicResponseProvider(MappingsCodeGet));
+
+        // __admin/mappings/wiremock.org
+        Given(Request.Create().WithPath(AdminMappingsWireMockOrg).UsingPost().WithHeader(HttpKnownHeaderNames.ContentType, AdminRequestContentTypeJson)).AtPriority(WireMockConstants.AdminPriority).RespondWith(new DynamicResponseProvider(MappingsPostWireMockOrg));
+
         // __admin/mappings/reset
         Given(Request.Create().WithPath(AdminMappings + "/reset").UsingPost()).AtPriority(WireMockConstants.AdminPriority).RespondWith(new DynamicResponseProvider(MappingsReset));
 
@@ -68,6 +75,9 @@ public partial class WireMockServer
         Given(Request.Create().WithPath(AdminMappingsGuidPathMatcher).UsingPut().WithHeader(HttpKnownHeaderNames.ContentType, AdminRequestContentTypeJson)).AtPriority(WireMockConstants.AdminPriority).RespondWith(new DynamicResponseProvider(MappingPut));
         Given(Request.Create().WithPath(AdminMappingsGuidPathMatcher).UsingDelete()).AtPriority(WireMockConstants.AdminPriority).RespondWith(new DynamicResponseProvider(MappingDelete));
 
+        // __admin/mappings/code/{guid}
+        Given(Request.Create().WithPath(AdminMappingsCodeGuidPathMatcher).UsingGet()).AtPriority(WireMockConstants.AdminPriority).RespondWith(new DynamicResponseProvider(MappingCodeGet));
+
         // __admin/mappings/save
         Given(Request.Create().WithPath($"{AdminMappings}/save").UsingPost()).AtPriority(WireMockConstants.AdminPriority).RespondWith(new DynamicResponseProvider(MappingsSave));
 
@@ -111,10 +121,7 @@ public partial class WireMockServer
     [PublicAPI]
     public void SaveStaticMappings(string? folder = null)
     {
-        foreach (var mapping in Mappings.Where(m => !m.IsAdminInterface))
-        {
-            _mappingToFileSaver.SaveMappingToFile(mapping, folder);
-        }
+        _mappingBuilder.SaveMappingsToFolder(folder);
     }
 
     /// <inheritdoc cref="IWireMockServer.ReadStaticMappings" />
@@ -226,7 +233,9 @@ public partial class WireMockServer
             QueryParameterMultipleValueSupport = _settings.QueryParameterMultipleValueSupport,
 
 #if USE_ASPNETCORE
-            CorsPolicyOptions = _settings.CorsPolicyOptions?.ToString()
+            CorsPolicyOptions = _settings.CorsPolicyOptions?.ToString(),
+            ClientCertificateMode = _settings.ClientCertificateMode,
+            AcceptAnyClientCertificate = _settings.AcceptAnyClientCertificate
 #endif
         };
 
@@ -275,6 +284,9 @@ public partial class WireMockServer
             _settings.CorsPolicyOptions = corsPolicyOptions;
             _options.CorsPolicyOptions = corsPolicyOptions;
         }
+
+        _options.ClientCertificateMode = _settings.ClientCertificateMode;
+        _options.AcceptAnyClientCertificate = _settings.AcceptAnyClientCertificate;
 #endif
 
         return ResponseMessageBuilder.Create("Settings updated");
@@ -284,13 +296,11 @@ public partial class WireMockServer
     #region Mapping/{guid}
     private IResponseMessage MappingGet(IRequestMessage requestMessage)
     {
-        Guid guid = ParseGuidFromRequestMessage(requestMessage);
-        var mapping = Mappings.FirstOrDefault(m => !m.IsAdminInterface && m.Guid == guid);
-
+        var mapping = FindMappingByGuid(requestMessage);
         if (mapping == null)
         {
             _settings.Logger.Warn("HttpStatusCode set to 404 : Mapping not found");
-            return ResponseMessageBuilder.Create("Mapping not found", 404);
+            return ResponseMessageBuilder.Create("Mapping not found", HttpStatusCode.NotFound);
         }
 
         var model = _mappingConverter.ToMappingModel(mapping);
@@ -298,31 +308,71 @@ public partial class WireMockServer
         return ToJson(model);
     }
 
+    private IResponseMessage MappingCodeGet(IRequestMessage requestMessage)
+    {
+        if (TryParseGuidFromRequestMessage(requestMessage, out var guid))
+        {
+            var code = _mappingBuilder.ToCSharpCode(guid, GetMappingConverterType(requestMessage));
+            if (code is null)
+            {
+                _settings.Logger.Warn("HttpStatusCode set to 404 : Mapping not found");
+                return ResponseMessageBuilder.Create("Mapping not found", HttpStatusCode.NotFound);
+            }
+
+            return ToResponseMessage(code);
+        }
+
+        _settings.Logger.Warn("HttpStatusCode set to 400");
+        return ResponseMessageBuilder.Create("GUID is missing", HttpStatusCode.BadRequest);
+    }
+
+    private static MappingConverterType GetMappingConverterType(IRequestMessage requestMessage)
+    {
+        var mappingConverterType = MappingConverterType.Server;
+
+        if (requestMessage.QueryIgnoreCase?.TryGetValue(nameof(MappingConverterType), out var values) == true &&
+            Enum.TryParse(values.FirstOrDefault(), true, out MappingConverterType parsed))
+        {
+            mappingConverterType = parsed;
+        }
+
+        return mappingConverterType;
+    }
+
+    private IMapping? FindMappingByGuid(IRequestMessage requestMessage)
+    {
+        return TryParseGuidFromRequestMessage(requestMessage, out var guid) ? Mappings.FirstOrDefault(m => !m.IsAdminInterface && m.Guid == guid) : null;
+    }
+
     private IResponseMessage MappingPut(IRequestMessage requestMessage)
     {
-        Guid guid = ParseGuidFromRequestMessage(requestMessage);
+        if (TryParseGuidFromRequestMessage(requestMessage, out var guid))
+        {
+            var mappingModel = DeserializeObject<MappingModel>(requestMessage);
+            var guidFromPut = ConvertMappingAndRegisterAsRespondProvider(mappingModel, guid);
 
-        var mappingModel = DeserializeObject<MappingModel>(requestMessage);
-        Guid? guidFromPut = ConvertMappingAndRegisterAsRespondProvider(mappingModel, guid);
+            return ResponseMessageBuilder.Create("Mapping added or updated", HttpStatusCode.OK, guidFromPut);
+        }
 
-        return ResponseMessageBuilder.Create("Mapping added or updated", HttpStatusCode.OK, guidFromPut);
+        _settings.Logger.Warn("HttpStatusCode set to 404 : Mapping not found");
+        return ResponseMessageBuilder.Create("Mapping not found", HttpStatusCode.NotFound);
     }
 
     private IResponseMessage MappingDelete(IRequestMessage requestMessage)
     {
-        Guid guid = ParseGuidFromRequestMessage(requestMessage);
-
-        if (DeleteMapping(guid))
+        if (TryParseGuidFromRequestMessage(requestMessage, out var guid) && DeleteMapping(guid))
         {
             return ResponseMessageBuilder.Create("Mapping removed", HttpStatusCode.OK, guid);
         }
 
+        _settings.Logger.Warn("HttpStatusCode set to 404 : Mapping not found");
         return ResponseMessageBuilder.Create("Mapping not found", HttpStatusCode.NotFound);
     }
 
-    private static Guid ParseGuidFromRequestMessage(IRequestMessage requestMessage)
+    private static bool TryParseGuidFromRequestMessage(IRequestMessage requestMessage, out Guid guid)
     {
-        return Guid.Parse(requestMessage.Path.Substring(AdminMappings.Length + 1));
+        var lastPart = requestMessage.Path.Split('/').LastOrDefault();
+        return Guid.TryParse(lastPart, out guid);
     }
     #endregion Mapping/{guid}
 
@@ -348,9 +398,9 @@ public partial class WireMockServer
         return ResponseMessageBuilder.Create("Mappings saved to disk");
     }
 
-    private IEnumerable<MappingModel> ToMappingModels()
+    private MappingModel[] ToMappingModels()
     {
-        return Mappings.Where(m => !m.IsAdminInterface).Select(_mappingConverter.ToMappingModel);
+        return _mappingBuilder.GetMappings();
     }
 
     private IResponseMessage MappingsGet(IRequestMessage requestMessage)
@@ -358,6 +408,15 @@ public partial class WireMockServer
         return ToJson(ToMappingModels());
     }
 
+    private IResponseMessage MappingsCodeGet(IRequestMessage requestMessage)
+    {
+        var converterType = GetMappingConverterType(requestMessage);
+
+        var code = _mappingBuilder.ToCSharpCode(converterType);
+
+        return ToResponseMessage(code);
+    }
+
     private IResponseMessage MappingsPost(IRequestMessage requestMessage)
     {
         try
@@ -413,18 +472,15 @@ public partial class WireMockServer
         try
         {
             var mappingModels = DeserializeRequestMessageToArray<MappingModel>(requestMessage);
-            foreach (var mappingModel in mappingModels)
+            foreach (var guid in mappingModels.Where(mm => mm.Guid.HasValue).Select(mm => mm.Guid!.Value))
             {
-                if (mappingModel.Guid.HasValue)
+                if (DeleteMapping(guid))
                 {
-                    if (DeleteMapping(mappingModel.Guid.Value))
-                    {
-                        deletedGuids.Add(mappingModel.Guid.Value);
-                    }
-                    else
-                    {
-                        _settings.Logger.Debug($"Did not find/delete mapping with GUID: {mappingModel.Guid.Value}.");
-                    }
+                    deletedGuids.Add(guid);
+                }
+                else
+                {
+                    _settings.Logger.Debug($"Did not find/delete mapping with GUID: {guid}.");
                 }
             }
         }
@@ -465,30 +521,29 @@ public partial class WireMockServer
     #region Request/{guid}
     private IResponseMessage RequestGet(IRequestMessage requestMessage)
     {
-        Guid guid = ParseGuidFromRequestMessage(requestMessage);
-        var entry = LogEntries.FirstOrDefault(r => !r.RequestMessage.Path.StartsWith("/__admin/") && r.Guid == guid);
-
-        if (entry == null)
+        if (TryParseGuidFromRequestMessage(requestMessage, out var guid))
         {
-            _settings.Logger.Warn("HttpStatusCode set to 404 : Request not found");
-            return ResponseMessageBuilder.Create("Request not found", 404);
+            var entry = LogEntries.FirstOrDefault(r => !r.RequestMessage.Path.StartsWith("/__admin/") && r.Guid == guid);
+            if (entry is { })
+            {
+                var model = new LogEntryMapper(_options).Map(entry);
+                return ToJson(model);
+            }
         }
 
-        var model = new LogEntryMapper(_options).Map(entry);
-
-        return ToJson(model);
+        _settings.Logger.Warn("HttpStatusCode set to 404 : Request not found");
+        return ResponseMessageBuilder.Create("Request not found", HttpStatusCode.NotFound);
     }
 
     private IResponseMessage RequestDelete(IRequestMessage requestMessage)
     {
-        Guid guid = ParseGuidFromRequestMessage(requestMessage);
-
-        if (DeleteLogEntry(guid))
+        if (TryParseGuidFromRequestMessage(requestMessage, out var guid) && DeleteLogEntry(guid))
         {
             return ResponseMessageBuilder.Create("Request removed");
         }
 
-        return ResponseMessageBuilder.Create("Request not found", 404);
+        _settings.Logger.Warn("HttpStatusCode set to 404 : Request not found");
+        return ResponseMessageBuilder.Create("Request not found", HttpStatusCode.NotFound);
     }
     #endregion Request/{guid}
 
@@ -565,7 +620,7 @@ public partial class WireMockServer
 
         return ResetScenario(name) ?
             ResponseMessageBuilder.Create("Scenario reset") :
-            ResponseMessageBuilder.Create($"No scenario found by name '{name}'.", 404);
+            ResponseMessageBuilder.Create($"No scenario found by name '{name}'.", HttpStatusCode.NotFound);
     }
     #endregion
 
@@ -688,11 +743,25 @@ public partial class WireMockServer
         };
     }
 
+    private static ResponseMessage ToResponseMessage(string text)
+    {
+        return new ResponseMessage
+        {
+            BodyData = new BodyData
+            {
+                DetectedBodyType = BodyType.String,
+                BodyAsString = text
+            },
+            StatusCode = (int)HttpStatusCode.OK,
+            Headers = new Dictionary<string, WireMockList<string>> { { HttpKnownHeaderNames.ContentType, new WireMockList<string>(WireMockConstants.ContentTypeTextPlain) } }
+        };
+    }
+
     private static T DeserializeObject<T>(IRequestMessage requestMessage) where T : new()
     {
         return requestMessage.BodyData?.DetectedBodyType switch
         {
-            BodyType.String => JsonUtils.DeserializeObject<T>(requestMessage.BodyData.BodyAsString),
+            BodyType.String => JsonUtils.DeserializeObject<T>(requestMessage.BodyData.BodyAsString!),
 
             BodyType.Json when requestMessage.BodyData?.BodyAsJson != null => ((JObject)requestMessage.BodyData.BodyAsJson).ToObject<T>()!,
 
@@ -721,7 +790,7 @@ public partial class WireMockServer
     {
         if (value is JArray jArray)
         {
-            return jArray.ToObject<T[]>();
+            return jArray.ToObject<T[]>()!;
         }
 
         var singleResult = ((JObject)value).ToObject<T>();

src/WireMock.Net/Server/WireMockServer.ConvertMapping.cs

@@ -46,7 +46,7 @@ public partial class WireMockServer
         }
 
         var respondProvider = Given(requestBuilder, mappingModel.SaveToFile == true);
-
+        
         if (guid != null)
         {
             respondProvider = respondProvider.WithGuid(guid.Value);
@@ -56,6 +56,11 @@ public partial class WireMockServer
             respondProvider = respondProvider.WithGuid(mappingModel.Guid.Value);
         }
 
+        if (mappingModel.Data != null)
+        {
+            respondProvider = respondProvider.WithData(mappingModel.Data);
+        }
+
         var timeSettings = TimeSettingsMapper.Map(mappingModel.TimeSettings);
         if (timeSettings != null)
         {
@@ -102,6 +107,8 @@ public partial class WireMockServer
             respondProvider = respondProvider.WithWebhook(webhooks);
         }
 
+        respondProvider.WithWebhookFireAndForget(mappingModel.UseWebhooksFireAndForget ?? false);
+
         var responseBuilder = InitResponseBuilder(mappingModel.Response);
         respondProvider.RespondWith(responseBuilder);
 
@@ -250,7 +257,7 @@ public partial class WireMockServer
 
             if (!Enum.TryParse<ReplaceNodeOptions>(responseModel.TransformerReplaceNodeOptions, out var option))
             {
-                option = ReplaceNodeOptions.None;
+                option = ReplaceNodeOptions.Evaluate;
             }
             responseBuilder = responseBuilder.WithTransformer(
                 transformerType,

src/WireMock.Net/Server/WireMockServer.LogEntries.cs

@@ -14,26 +14,12 @@ namespace WireMock.Server;
 
 public partial class WireMockServer
 {
-    /// <inheritdoc cref="IWireMockServer.LogEntriesChanged" />
+    /// <inheritdoc />
     [PublicAPI]
     public event NotifyCollectionChangedEventHandler LogEntriesChanged
     {
-        add
-        {
-            _options.LogEntries.CollectionChanged += (sender, eventRecordArgs) =>
-            {
-                try
-                {
-                    value(sender, eventRecordArgs);
-                }
-                catch (Exception exception)
-                {
-                    _options.Logger.Error("Error calling the LogEntriesChanged event handler: {0}", exception.Message);
-                }
-            };
-        }
-
-        remove => _options.LogEntries.CollectionChanged -= value;
+        add => _logEntriesChanged += value;
+        remove => _logEntriesChanged -= value;
     }
 
     /// <inheritdoc cref="IWireMockServer.LogEntries" />
@@ -90,4 +76,24 @@ public partial class WireMockServer
 
         return false;
     }
+
+    private NotifyCollectionChangedEventHandler? _logEntriesChanged;
+
+    private void LogEntries_CollectionChanged(object sender, NotifyCollectionChangedEventArgs e)
+    {
+        if (_logEntriesChanged is { })
+        {
+            foreach (var handler in _logEntriesChanged.GetInvocationList())
+            {
+                try
+                {
+                    handler.DynamicInvoke(this, e);
+                }
+                catch (Exception exception)
+                {
+                    _options.Logger.Error("Error calling the LogEntriesChanged event handler: {0}", exception.Message);
+                }
+            }
+        }
+    }
 }

src/WireMock.Net/Server/WireMockServer.cs

@@ -22,6 +22,7 @@ using WireMock.ResponseProviders;
 using WireMock.Serialization;
 using WireMock.Settings;
 using WireMock.Types;
+using WireMock.Util;
 
 namespace WireMock.Server;
 
@@ -38,6 +39,9 @@ public partial class WireMockServer : IWireMockServer
     private readonly MappingConverter _mappingConverter;
     private readonly MatcherMapper _matcherMapper;
     private readonly MappingToFileSaver _mappingToFileSaver;
+    private readonly MappingBuilder _mappingBuilder;
+    private readonly IGuidUtils _guidUtils = new GuidUtils();
+    private readonly IDateTimeUtils _dateTimeUtils = new DateTimeUtils();
 
     /// <inheritdoc cref="IWireMockServer.IsStarted" />
     [PublicAPI]
@@ -89,6 +93,8 @@ public partial class WireMockServer : IWireMockServer
     /// </summary>
     public void Dispose()
     {
+        _options.LogEntries.CollectionChanged -= LogEntries_CollectionChanged;
+
         Dispose(true);
         GC.SuppressFinalize(this);
     }
@@ -107,25 +113,42 @@ public partial class WireMockServer : IWireMockServer
     #region HttpClient
     /// <summary>
     /// Create a <see cref="HttpClient"/> which can be used to call this instance.
+    /// <param name="handlers">
+    /// An ordered list of System.Net.Http.DelegatingHandler instances to be invoked
+    /// as an System.Net.Http.HttpRequestMessage travels from the System.Net.Http.HttpClient
+    /// to the network and an System.Net.Http.HttpResponseMessage travels from the network
+    /// back to System.Net.Http.HttpClient. The handlers are invoked in a top-down fashion.
+    /// That is, the first entry is invoked first for an outbound request message but
+    /// last for an inbound response message.
+    /// </param>
     /// </summary>
     [PublicAPI]
-    public HttpClient CreateClient()
+    public HttpClient CreateClient(params DelegatingHandler[] handlers)
     {
         if (!IsStarted)
         {
             throw new InvalidOperationException("Unable to create HttpClient because the service is not started.");
         }
 
-        var client = HttpClientFactory2.Create();
+        var client = HttpClientFactory2.Create(handlers);
         client.BaseAddress = new Uri(Url!);
         return client;
     }
 
     /// <summary>
     /// Create <see cref="HttpClient"/>s (one for each URL) which can be used to call this instance.
+    /// <param name="innerHandler">The inner handler represents the destination of the HTTP message channel.</param>
+    /// <param name="handlers">
+    /// An ordered list of System.Net.Http.DelegatingHandler instances to be invoked
+    /// as an System.Net.Http.HttpRequestMessage travels from the System.Net.Http.HttpClient
+    /// to the network and an System.Net.Http.HttpResponseMessage travels from the network
+    /// back to System.Net.Http.HttpClient. The handlers are invoked in a top-down fashion.
+    /// That is, the first entry is invoked first for an outbound request message but
+    /// last for an inbound response message.
+    /// </param>
     /// </summary>
     [PublicAPI]
-    public HttpClient[] CreateClients()
+    public HttpClient[] CreateClients(HttpMessageHandler innerHandler, params DelegatingHandler[] handlers)
     {
         if (!IsStarted)
         {
@@ -134,7 +157,7 @@ public partial class WireMockServer : IWireMockServer
 
         return Urls.Select(url =>
         {
-            var client = HttpClientFactory2.Create();
+            var client = HttpClientFactory2.Create(innerHandler, handlers);
             client.BaseAddress = new Uri(url);
             return client;
         }).ToArray();
@@ -229,7 +252,7 @@ public partial class WireMockServer : IWireMockServer
     [PublicAPI]
     public static WireMockServer StartWithAdminInterfaceAndReadStaticMappings(params string[] urls)
     {
-        Guard.NotNullOrEmpty(urls, nameof(urls));
+        Guard.NotNullOrEmpty(urls);
 
         return new WireMockServer(new WireMockServerSettings
         {
@@ -251,7 +274,7 @@ public partial class WireMockServer : IWireMockServer
     /// <exception cref="TimeoutException">Service start timed out after {TimeSpan.FromMilliseconds(settings.StartTimeout)}</exception>
     protected WireMockServer(WireMockServerSettings settings)
     {
-        _settings = settings;
+        _settings = Guard.NotNull(settings);
 
         // Set default values if not provided
         _settings.Logger = settings.Logger ?? new WireMockNullLogger();
@@ -288,32 +311,27 @@ public partial class WireMockServer : IWireMockServer
             }
         }
 
-        _options.FileSystemHandler = _settings.FileSystemHandler;
-        _options.PreWireMockMiddlewareInit = _settings.PreWireMockMiddlewareInit;
-        _options.PostWireMockMiddlewareInit = _settings.PostWireMockMiddlewareInit;
-        _options.Logger = _settings.Logger;
-        _options.DisableJsonBodyParsing = _settings.DisableJsonBodyParsing;
-        _options.HandleRequestsSynchronously = settings.HandleRequestsSynchronously;
-        _options.SaveUnmatchedRequests = settings.SaveUnmatchedRequests;
-        _options.DoNotSaveDynamicResponseInLogEntry = settings.DoNotSaveDynamicResponseInLogEntry;
-        _options.QueryParameterMultipleValueSupport = settings.QueryParameterMultipleValueSupport;
+        WireMockMiddlewareOptionsHelper.InitFromSettings(settings, _options);
 
-        if (settings.CustomCertificateDefined)
-        {
-            _options.X509StoreName = settings.CertificateSettings!.X509StoreName;
-            _options.X509StoreLocation = settings.CertificateSettings.X509StoreLocation;
-            _options.X509ThumbprintOrSubjectName = settings.CertificateSettings.X509StoreThumbprintOrSubjectName;
-            _options.X509CertificateFilePath = settings.CertificateSettings.X509CertificateFilePath;
-            _options.X509CertificatePassword = settings.CertificateSettings.X509CertificatePassword;
-        }
+        _options.LogEntries.CollectionChanged += LogEntries_CollectionChanged;
 
         _matcherMapper = new MatcherMapper(_settings);
         _mappingConverter = new MappingConverter(_matcherMapper);
         _mappingToFileSaver = new MappingToFileSaver(_settings, _mappingConverter);
+        _mappingBuilder = new MappingBuilder(
+            settings,
+            _options,
+            _mappingConverter,
+            _mappingToFileSaver,
+            _guidUtils,
+            _dateTimeUtils
+        );
 
 #if USE_ASPNETCORE
         _options.AdditionalServiceRegistration = _settings.AdditionalServiceRegistration;
         _options.CorsPolicyOptions = _settings.CorsPolicyOptions;
+        _options.ClientCertificateMode = _settings.ClientCertificateMode;
+        _options.AcceptAnyClientCertificate = _settings.AcceptAnyClientCertificate;
 
         _httpServer = new AspNetCoreSelfHost(_options, urlOptions);
 #else
@@ -519,25 +537,21 @@ public partial class WireMockServer : IWireMockServer
     [PublicAPI]
     public IRespondWithAProvider Given(IRequestMatcher requestMatcher, bool saveToFile = false)
     {
-        return new RespondWithAProvider(RegisterMapping, requestMatcher, _settings, saveToFile);
+        return _mappingBuilder.Given(requestMatcher, saveToFile);
     }
 
-    private void RegisterMapping(IMapping mapping, bool saveToFile)
+    /// <inheritdoc />
+    [PublicAPI]
+    public string? MappingToCSharpCode(Guid guid, MappingConverterType converterType)
     {
-        // Check a mapping exists with the same Guid, if so, replace it.
-        if (_options.Mappings.ContainsKey(mapping.Guid))
-        {
-            _options.Mappings[mapping.Guid] = mapping;
-        }
-        else
-        {
-            _options.Mappings.TryAdd(mapping.Guid, mapping);
-        }
+        return _mappingBuilder.ToCSharpCode(guid, converterType);
+    }
 
-        if (saveToFile)
-        {
-            _mappingToFileSaver.SaveMappingToFile(mapping);
-        }
+    /// <inheritdoc />
+    [PublicAPI]
+    public string MappingsToCSharpCode(MappingConverterType converterType)
+    {
+        return _mappingBuilder.ToCSharpCode(converterType);
     }
 
     private void InitSettings(WireMockServerSettings settings)

src/WireMock.Net/Settings/HttpClientSettings.cs

@@ -1,9 +1,11 @@
+using System.Security.Cryptography.X509Certificates;
+
 namespace WireMock.Settings;
 
 /// <summary>
 /// HttpClientSettings
 /// </summary>
-public class HttpClientSettings
+public abstract class HttpClientSettings
 {
     /// <summary>
     /// The clientCertificate thumbprint or subject name fragment to use.
@@ -20,4 +22,9 @@ public class HttpClientSettings
     /// Proxy requests should follow redirection (30x).
     /// </summary>
     public bool? AllowAutoRedirect { get; set; }
+
+    /// <summary>
+    /// The <see cref="X509Certificate2"/> to use.
+    /// </summary>
+    public X509Certificate2? Certificate { get; set; }
 }

src/WireMock.Net/Settings/ProxyAndRecordSettings.cs

@@ -28,9 +28,28 @@ public class ProxyAndRecordSettings : HttpClientSettings
     /// <summary>
     /// Only save request/response to the internal Mappings if the status code is included in this pattern. (Note that SaveMapping must also be set to true.)
     /// The pattern can contain a single value like "200", but also ranges like "2xx", "100,300,600" or "100-299,6xx" are supported.
+    ///
+    /// Deprecated : use SaveMappingSettings.
     /// </summary>
     [PublicAPI]
-    public string SaveMappingForStatusCodePattern { get; set; } = "*";
+    public string SaveMappingForStatusCodePattern
+    {
+        set
+        {
+            if (SaveMappingSettings is null)
+            {
+                SaveMappingSettings = new ProxySaveMappingSettings();
+            }
+
+            SaveMappingSettings.StatusCodePattern = value;
+        }
+    }
+
+    /// <summary>
+    /// Additional SaveMappingSettings.
+    /// </summary>
+    [PublicAPI]
+    public ProxySaveMappingSettings? SaveMappingSettings { get; set; }
 
     /// <summary>
     /// Defines a list from headers which will be excluded from the saved mappings.

src/WireMock.Net/Settings/ProxySaveMappingSetting.cs

@@ -0,0 +1,20 @@
+using WireMock.Matchers;
+
+namespace WireMock.Settings;
+
+public class ProxySaveMappingSetting<T>
+{
+    public MatchBehaviour MatchBehaviour { get; } = MatchBehaviour.AcceptOnMatch;
+
+    public T Value { get; private set; }
+
+    public ProxySaveMappingSetting(T value, MatchBehaviour matchBehaviour = MatchBehaviour.AcceptOnMatch)
+    {
+        Value = value;
+        MatchBehaviour = matchBehaviour;
+    }
+
+    public static implicit operator ProxySaveMappingSetting<T>(T value) => new ProxySaveMappingSetting<T>(value);
+
+    public static implicit operator T(ProxySaveMappingSetting<T> @this) => @this.Value;
+}

src/WireMock.Net/Settings/ProxySaveMappingSettings.cs

@@ -0,0 +1,22 @@
+using JetBrains.Annotations;
+
+namespace WireMock.Settings;
+
+/// <summary>
+/// ProxySaveMappingSettings
+/// </summary>
+public class ProxySaveMappingSettings
+{
+    /// <summary>
+    /// Only save request/response to the internal Mappings if the status code is included in this pattern. (Note that SaveMapping must also be set to true.)
+    /// The pattern can contain a single value like "200", but also ranges like "2xx", "100,300,600" or "100-299,6xx" are supported.
+    /// </summary>
+    [PublicAPI]
+    public ProxySaveMappingSetting<string>? StatusCodePattern { get; set; } = "*";
+
+    /// <summary>
+    /// Only save these Http Methods. (Note that SaveMapping must also be set to true.)
+    /// </summary>
+    [PublicAPI]
+    public ProxySaveMappingSetting<string[]>? HttpMethods { get; set; }
+}

src/WireMock.Net/Settings/WireMockCertificateSettings.cs

@@ -1,54 +1,53 @@
 using JetBrains.Annotations;
 
-namespace WireMock.Settings
+namespace WireMock.Settings;
+
+/// <summary>
+/// If https is used, these settings can be used to configure the CertificateSettings in case a custom certificate instead the default .NET certificate should be used.
+///
+/// X509StoreName and X509StoreLocation should be defined
+/// OR
+/// X509CertificateFilePath and X509CertificatePassword should be defined
+/// </summary>
+public class WireMockCertificateSettings
 {
     /// <summary>
-    /// If https is used, these settings can be used to configure the CertificateSettings in case a custom certificate instead the default .NET certificate should be used.
-    ///
+    /// X509 StoreName (AddressBook, AuthRoot, CertificateAuthority, My, Root, TrustedPeople or TrustedPublisher)
+    /// </summary>
+    [PublicAPI]
+    public string? X509StoreName { get; set; }
+
+    /// <summary>
+    /// X509 StoreLocation (CurrentUser or LocalMachine)
+    /// </summary>
+    [PublicAPI]
+    public string? X509StoreLocation { get; set; }
+
+    /// <summary>
+    /// X509 Thumbprint or SubjectName (if not defined, the 'host' is used)
+    /// </summary>
+    [PublicAPI]
+    public string? X509StoreThumbprintOrSubjectName { get; set; }
+
+    /// <summary>
+    /// X509Certificate FilePath
+    /// </summary>
+    [PublicAPI]
+    public string? X509CertificateFilePath { get; set; }
+
+    /// <summary>
+    /// X509Certificate Password
+    /// </summary>
+    [PublicAPI]
+    public string? X509CertificatePassword { get; set; }
+
+    /// <summary>
     /// X509StoreName and X509StoreLocation should be defined
     /// OR
     /// X509CertificateFilePath and X509CertificatePassword should be defined
     /// </summary>
-    public class WireMockCertificateSettings
-    {
-        /// <summary>
-        /// X509 StoreName (AddressBook, AuthRoot, CertificateAuthority, My, Root, TrustedPeople or TrustedPublisher)
-        /// </summary>
-        [PublicAPI]
-        public string? X509StoreName { get; set; }
-
-        /// <summary>
-        /// X509 StoreLocation (CurrentUser or LocalMachine)
-        /// </summary>
-        [PublicAPI]
-        public string? X509StoreLocation { get; set; }
-
-        /// <summary>
-        /// X509 Thumbprint or SubjectName (if not defined, the 'host' is used)
-        /// </summary>
-        [PublicAPI]
-        public string? X509StoreThumbprintOrSubjectName { get; set; }
-
-        /// <summary>
-        /// X509Certificate FilePath
-        /// </summary>
-        [PublicAPI]
-        public string? X509CertificateFilePath { get; set; }
-
-        /// <summary>
-        /// X509Certificate Password
-        /// </summary>
-        [PublicAPI]
-        public string? X509CertificatePassword { get; set; }
-
-        /// <summary>
-        /// X509StoreName and X509StoreLocation should be defined
-        /// OR
-        /// X509CertificateFilePath and X509CertificatePassword should be defined
-        /// </summary>
-        [PublicAPI]
-        public bool IsDefined =>
-            !string.IsNullOrEmpty(X509StoreName) && !string.IsNullOrEmpty(X509StoreLocation) ||
-            !string.IsNullOrEmpty(X509CertificateFilePath);
-    }
+    [PublicAPI]
+    public bool IsDefined =>
+        !string.IsNullOrEmpty(X509StoreName) && !string.IsNullOrEmpty(X509StoreLocation) ||
+        !string.IsNullOrEmpty(X509CertificateFilePath);
 }

src/WireMock.Net/Settings/WireMockServerSettings.cs

@@ -10,272 +10,293 @@ using WireMock.Logging;
 using WireMock.Matchers;
 using WireMock.RegularExpressions;
 using WireMock.Types;
+using System.Globalization;
 #if USE_ASPNETCORE
 using Microsoft.Extensions.DependencyInjection;
 #endif
 
-namespace WireMock.Settings
+namespace WireMock.Settings;
+
+/// <summary>
+/// WireMockServerSettings
+/// </summary>
+public class WireMockServerSettings
 {
     /// <summary>
-    /// WireMockServerSettings
+    /// Gets or sets the http port.
     /// </summary>
-    public class WireMockServerSettings
-    {
-        /// <summary>
-        /// Gets or sets the http port.
-        /// </summary>
-        [PublicAPI]
-        public int? Port { get; set; }
+    [PublicAPI]
+    public int? Port { get; set; }
 
-        /// <summary>
-        /// Gets or sets the use SSL.
-        /// </summary>
-        // ReSharper disable once InconsistentNaming
-        [PublicAPI]
-        public bool? UseSSL { get; set; }
+    /// <summary>
+    /// Gets or sets the use SSL.
+    /// </summary>
+    // ReSharper disable once InconsistentNaming
+    [PublicAPI]
+    public bool? UseSSL { get; set; }
 
-        /// <summary>
-        /// Defines on which scheme (http/https) to host. (This overrides the <c>UseSSL</c> value).
-        /// </summary>
-        [PublicAPI]
-        public HostingScheme? HostingScheme { get; set; }
+    /// <summary>
+    /// Defines on which scheme (http/https) to host. (This overrides the <c>UseSSL</c> value).
+    /// </summary>
+    [PublicAPI]
+    public HostingScheme? HostingScheme { get; set; }
 
-        /// <summary>
-        /// Gets or sets whether to start admin interface.
-        /// </summary>
-        [PublicAPI]
-        public bool? StartAdminInterface { get; set; }
+    /// <summary>
+    /// Gets or sets whether to start admin interface.
+    /// </summary>
+    [PublicAPI]
+    public bool? StartAdminInterface { get; set; }
 
-        /// <summary>
-        /// Gets or sets if the static mappings should be read at startup.
-        /// </summary>
-        [PublicAPI]
-        public bool? ReadStaticMappings { get; set; }
+    /// <summary>
+    /// Gets or sets if the static mappings should be read at startup.
+    /// </summary>
+    [PublicAPI]
+    public bool? ReadStaticMappings { get; set; }
 
-        /// <summary>
-        /// Watch the static mapping files + folder for changes when running.
-        /// </summary>
-        [PublicAPI]
-        public bool? WatchStaticMappings { get; set; }
+    /// <summary>
+    /// Watch the static mapping files + folder for changes when running.
+    /// </summary>
+    [PublicAPI]
+    public bool? WatchStaticMappings { get; set; }
 
-        /// <summary>
-        /// A value indicating whether subdirectories within the static mappings path should be monitored.
-        /// </summary>
-        [PublicAPI]
-        public bool? WatchStaticMappingsInSubdirectories { get; set; }
+    /// <summary>
+    /// A value indicating whether subdirectories within the static mappings path should be monitored.
+    /// </summary>
+    [PublicAPI]
+    public bool? WatchStaticMappingsInSubdirectories { get; set; }
 
-        /// <summary>
-        /// Gets or sets if the proxy and record settings.
-        /// </summary>
-        [PublicAPI]
-        public ProxyAndRecordSettings? ProxyAndRecordSettings { get; set; }
+    /// <summary>
+    /// Gets or sets if the proxy and record settings.
+    /// </summary>
+    [PublicAPI]
+    public ProxyAndRecordSettings? ProxyAndRecordSettings { get; set; }
 
-        /// <summary>
-        /// Gets or sets the urls.
-        /// </summary>
-        [PublicAPI]
-        public string[]? Urls { get; set; }
+    /// <summary>
+    /// Gets or sets the urls.
+    /// </summary>
+    [PublicAPI]
+    public string[]? Urls { get; set; }
 
-        /// <summary>
-        /// StartTimeout
-        /// </summary>
-        [PublicAPI]
-        public int StartTimeout { get; set; } = 10000;
+    /// <summary>
+    /// StartTimeout
+    /// </summary>
+    [PublicAPI]
+    public int StartTimeout { get; set; } = 10000;
 
-        /// <summary>
-        /// Allow Partial Mapping (default set to false).
-        /// </summary>
-        [PublicAPI]
-        public bool? AllowPartialMapping { get; set; }
+    /// <summary>
+    /// Allow Partial Mapping (default set to false).
+    /// </summary>
+    [PublicAPI]
+    public bool? AllowPartialMapping { get; set; }
 
-        /// <summary>
-        /// The username needed for __admin access.
-        /// </summary>
-        [PublicAPI]
-        public string? AdminUsername { get; set; }
+    /// <summary>
+    /// The username needed for __admin access.
+    /// </summary>
+    [PublicAPI]
+    public string? AdminUsername { get; set; }
 
-        /// <summary>
-        /// The password needed for __admin access.
-        /// </summary>
-        [PublicAPI]
-        public string? AdminPassword { get; set; }
+    /// <summary>
+    /// The password needed for __admin access.
+    /// </summary>
+    [PublicAPI]
+    public string? AdminPassword { get; set; }
 
-        /// <summary>
-        /// The AzureAD Tenant needed for __admin access.
-        /// </summary>
-        [PublicAPI]
-        public string? AdminAzureADTenant { get; set; }
+    /// <summary>
+    /// The AzureAD Tenant needed for __admin access.
+    /// </summary>
+    [PublicAPI]
+    public string? AdminAzureADTenant { get; set; }
 
-        /// <summary>
-        /// The AzureAD Audience / Resource for __admin access.
-        /// </summary>
-        [PublicAPI]
-        public string? AdminAzureADAudience { get; set; }
+    /// <summary>
+    /// The AzureAD Audience / Resource for __admin access.
+    /// </summary>
+    [PublicAPI]
+    public string? AdminAzureADAudience { get; set; }
 
-        /// <summary>
-        /// The RequestLog expiration in hours (optional).
-        /// </summary>
-        [PublicAPI]
-        public int? RequestLogExpirationDuration { get; set; }
+    /// <summary>
+    /// The RequestLog expiration in hours (optional).
+    /// </summary>
+    [PublicAPI]
+    public int? RequestLogExpirationDuration { get; set; }
 
-        /// <summary>
-        /// The MaxRequestLog count (optional).
-        /// </summary>
-        [PublicAPI]
-        public int? MaxRequestLogCount { get; set; }
+    /// <summary>
+    /// The MaxRequestLog count (optional).
+    /// </summary>
+    [PublicAPI]
+    public int? MaxRequestLogCount { get; set; }
 
-        /// <summary>
-        /// Action which is called (with the IAppBuilder or IApplicationBuilder) before the internal WireMockMiddleware is initialized. [Optional]
-        /// </summary>
-        [PublicAPI]
-        [JsonIgnore]
-        public Action<object>? PreWireMockMiddlewareInit { get; set; }
+    /// <summary>
+    /// Action which is called (with the IAppBuilder or IApplicationBuilder) before the internal WireMockMiddleware is initialized. [Optional]
+    /// </summary>
+    [PublicAPI]
+    [JsonIgnore]
+    public Action<object>? PreWireMockMiddlewareInit { get; set; }
 
-        /// <summary>
-        /// Action which is called (with the IAppBuilder or IApplicationBuilder) after the internal WireMockMiddleware is initialized. [Optional]
-        /// </summary>
-        [PublicAPI]
-        [JsonIgnore]
-        public Action<object>? PostWireMockMiddlewareInit { get; set; }
+    /// <summary>
+    /// Action which is called (with the IAppBuilder or IApplicationBuilder) after the internal WireMockMiddleware is initialized. [Optional]
+    /// </summary>
+    [PublicAPI]
+    [JsonIgnore]
+    public Action<object>? PostWireMockMiddlewareInit { get; set; }
+
+#if USE_ASPNETCORE
+    /// <summary>
+    /// Action which is called with IServiceCollection when ASP.NET Core DI is being configured. [Optional]
+    /// </summary>
+    [PublicAPI]
+    [JsonIgnore]
+    public Action<IServiceCollection>? AdditionalServiceRegistration { get; set; }
+
+    /// <summary>
+    /// Policies to use when using CORS. By default CORS is disabled. [Optional]
+    /// </summary>
+    [PublicAPI]
+    public CorsPolicyOptions? CorsPolicyOptions { get; set; }
+#endif
+
+    /// <summary>
+    /// The IWireMockLogger which logs Debug, Info, Warning or Error
+    /// </summary>
+    [PublicAPI]
+    [JsonIgnore]
+    public IWireMockLogger Logger { get; set; } = null!;
+
+    /// <summary>
+    /// Handler to interact with the file system to read and write static mapping files.
+    /// </summary>
+    [PublicAPI]
+    [JsonIgnore]
+    public IFileSystemHandler FileSystemHandler { get; set; } = null!;
+
+    /// <summary>
+    /// Action which can be used to add additional Handlebars registrations. [Optional]
+    /// </summary>
+    [PublicAPI]
+    [JsonIgnore]
+    public Action<IHandlebars, IFileSystemHandler>? HandlebarsRegistrationCallback { get; set; }
+
+    /// <summary>
+    /// Allow the usage of CSharpCodeMatcher (default is not allowed).
+    /// </summary>
+    [PublicAPI]
+    public bool? AllowCSharpCodeMatcher { get; set; }
+
+    /// <summary>
+    /// Allow a Body for all HTTP Methods. (default set to false).
+    /// </summary>
+    [PublicAPI]
+    public bool? AllowBodyForAllHttpMethods { get; set; }
+
+    /// <summary>
+    /// Allow only a HttpStatus Code in the response which is defined. (default set to false).
+    /// - false : also null, 0, empty or invalid HttpStatus codes are allowed.
+    /// - true  : only codes defined in <see cref="System.Net.HttpStatusCode"/> are allowed.
+    /// </summary>
+    [PublicAPI]
+    public bool? AllowOnlyDefinedHttpStatusCodeInResponse { get; set; }
+
+    /// <summary>
+    /// Set to true to disable Json deserialization when processing requests. (default set to false).
+    /// </summary>
+    [PublicAPI]
+    public bool? DisableJsonBodyParsing { get; set; }
+
+    /// <summary>
+    /// Disable support for GZip and Deflate request body decompression. (default set to false).
+    /// </summary>
+    [PublicAPI]
+    public bool? DisableRequestBodyDecompressing { get; set; }
+
+    /// <summary>
+    /// Handle all requests synchronously. (default set to false).
+    /// </summary>
+    [PublicAPI]
+    public bool? HandleRequestsSynchronously { get; set; }
+
+    /// <summary>
+    /// Throw an exception when the <see cref="IMatcher"/> fails because of invalid input. (default set to false).
+    /// </summary>
+    [PublicAPI]
+    public bool? ThrowExceptionWhenMatcherFails { get; set; }
+
+    /// <summary>
+    /// If https is used, these settings can be used to configure the CertificateSettings in case a custom certificate instead the default .NET certificate should be used.
+    ///
+    /// X509StoreName and X509StoreLocation should be defined
+    /// OR
+    /// X509CertificateFilePath and X509CertificatePassword should be defined
+    /// </summary>
+    [PublicAPI]
+    public WireMockCertificateSettings? CertificateSettings { get; set; }
+
+    /// <summary>
+    /// Defines if custom CertificateSettings are defined
+    /// </summary>
+    [PublicAPI]
+    public bool CustomCertificateDefined => CertificateSettings?.IsDefined == true;
 
 #if USE_ASPNETCORE
         /// <summary>
-        /// Action which is called with IServiceCollection when ASP.NET Core DI is being configured. [Optional]
+        /// Client certificate mode for the server
         /// </summary>
         [PublicAPI]
-        [JsonIgnore]
-        public Action<IServiceCollection>? AdditionalServiceRegistration { get; set; }
+        public ClientCertificateMode ClientCertificateMode { get; set; }
 
         /// <summary>
-        /// Policies to use when using CORS. By default CORS is disabled. [Optional]
+        /// Whether to accept any client certificate
         /// </summary>
-        [PublicAPI]
-        public CorsPolicyOptions? CorsPolicyOptions { get; set; }
+        public bool AcceptAnyClientCertificate { get; set; }
 #endif
 
-        /// <summary>
-        /// The IWireMockLogger which logs Debug, Info, Warning or Error
-        /// </summary>
-        [PublicAPI]
-        [JsonIgnore]
-        public IWireMockLogger Logger { get; set; } = null!;
+    /// <summary>
+    /// Defines the global IWebhookSettings to use.
+    /// </summary>
+    [PublicAPI]
+    public WebhookSettings? WebhookSettings { get; set; }
 
-        /// <summary>
-        /// Handler to interact with the file system to read and write static mapping files.
-        /// </summary>
-        [PublicAPI]
-        [JsonIgnore]
-        public IFileSystemHandler FileSystemHandler { get; set; } = null!;
+    /// <summary>
+    /// Use the <see cref="RegexExtended"/> instead of the default <see cref="Regex"/> (default set to true).
+    /// </summary>
+    [PublicAPI]
+    public bool? UseRegexExtended { get; set; } = true;
 
-        /// <summary>
-        /// Action which can be used to add additional Handlebars registrations. [Optional]
-        /// </summary>
-        [PublicAPI]
-        [JsonIgnore]
-        public Action<IHandlebars, IFileSystemHandler>? HandlebarsRegistrationCallback { get; set; }
+    /// <summary>
+    /// Save unmatched requests to a file using the <see cref="IFileSystemHandler"/> (default set to false).
+    /// </summary>
+    [PublicAPI]
+    public bool? SaveUnmatchedRequests { get; set; }
 
-        /// <summary>
-        /// Allow the usage of CSharpCodeMatcher (default is not allowed).
-        /// </summary>
-        [PublicAPI]
-        public bool? AllowCSharpCodeMatcher { get; set; }
+    /// <summary>
+    /// Don't save the response-string in the LogEntry when WithBody(Func{IRequestMessage, string}) or WithBody(Func{IRequestMessage, Task{string}}) is used. (default set to false).
+    /// </summary>
+    [PublicAPI]
+    public bool? DoNotSaveDynamicResponseInLogEntry { get; set; }
 
-        /// <summary>
-        /// Allow a Body for all HTTP Methods. (default set to false).
-        /// </summary>
-        [PublicAPI]
-        public bool? AllowBodyForAllHttpMethods { get; set; }
+    /// <summary>
+    /// See <seealso cref="QueryParameterMultipleValueSupport"/>.
+    ///
+    /// Default value = "All".
+    /// </summary>
+    [PublicAPI]
+    public QueryParameterMultipleValueSupport? QueryParameterMultipleValueSupport { get; set; }
 
-        /// <summary>
-        /// Allow only a HttpStatus Code in the response which is defined. (default set to false).
-        /// - false : also null, 0, empty or invalid HttpStatus codes are allowed.
-        /// - true  : only codes defined in <see cref="System.Net.HttpStatusCode"/> are allowed.
-        /// </summary>
-        [PublicAPI]
-        public bool? AllowOnlyDefinedHttpStatusCodeInResponse { get; set; }
+    /// <summary>
+    /// Custom matcher mappings for static mappings
+    /// </summary>
+    [PublicAPI, JsonIgnore]
+    public IDictionary<string, Func<MatcherModel, IMatcher>>? CustomMatcherMappings { get; set; }
 
-        /// <summary>
-        /// Set to true to disable Json deserialization when processing requests. (default set to false).
-        /// </summary>
-        [PublicAPI]
-        public bool? DisableJsonBodyParsing { get; set; }
+    /// <summary>
+    /// The <see cref="JsonSerializerSettings"/> used when the a JSON response is generated.
+    /// </summary>
+    [PublicAPI, JsonIgnore]
+    public JsonSerializerSettings? JsonSerializerSettings { get; set; }
 
-        /// <summary>
-        /// Disable support for GZip and Deflate request body decompression. (default set to false).
-        /// </summary>
-        [PublicAPI]
-        public bool? DisableRequestBodyDecompressing { get; set; }
-
-        /// <summary>
-        /// Handle all requests synchronously. (default set to false).
-        /// </summary>
-        [PublicAPI]
-        public bool? HandleRequestsSynchronously { get; set; }
-
-        /// <summary>
-        /// Throw an exception when the <see cref="IMatcher"/> fails because of invalid input. (default set to false).
-        /// </summary>
-        [PublicAPI]
-        public bool? ThrowExceptionWhenMatcherFails { get; set; }
-
-        /// <summary>
-        /// If https is used, these settings can be used to configure the CertificateSettings in case a custom certificate instead the default .NET certificate should be used.
-        ///
-        /// X509StoreName and X509StoreLocation should be defined
-        /// OR
-        /// X509CertificateFilePath and X509CertificatePassword should be defined
-        /// </summary>
-        [PublicAPI]
-        public WireMockCertificateSettings? CertificateSettings { get; set; }
-
-        /// <summary>
-        /// Defines if custom CertificateSettings are defined
-        /// </summary>
-        [PublicAPI]
-        public bool CustomCertificateDefined => CertificateSettings?.IsDefined == true;
-
-        /// <summary>
-        /// Defines the global IWebhookSettings to use.
-        /// </summary>
-        [PublicAPI]
-        public WebhookSettings? WebhookSettings { get; set; }
-
-        /// <summary>
-        /// Use the <see cref="RegexExtended"/> instead of the default <see cref="Regex"/> (default set to true).
-        /// </summary>
-        [PublicAPI]
-        public bool? UseRegexExtended { get; set; } = true;
-
-        /// <summary>
-        /// Save unmatched requests to a file using the <see cref="IFileSystemHandler"/> (default set to false).
-        /// </summary>
-        [PublicAPI]
-        public bool? SaveUnmatchedRequests { get; set; }
-
-        /// <summary>
-        /// Don't save the response-string in the LogEntry when WithBody(Func{IRequestMessage, string}) or WithBody(Func{IRequestMessage, Task{string}}) is used. (default set to false).
-        /// </summary>
-        [PublicAPI]
-        public bool? DoNotSaveDynamicResponseInLogEntry { get; set; }
-
-        /// <summary>
-        /// See <seealso cref="QueryParameterMultipleValueSupport"/>.
-        ///
-        /// Default value = "All".
-        /// </summary>
-        [PublicAPI]
-        public QueryParameterMultipleValueSupport? QueryParameterMultipleValueSupport { get; set; }
-
-        /// <summary>
-        /// Custom matcher mappings for static mappings
-        /// </summary>
-        [PublicAPI, JsonIgnore]
-        public IDictionary<string, Func<MatcherModel, IMatcher>>? CustomMatcherMappings { get; set; }
-
-        /// <summary>
-        /// The <see cref="JsonSerializerSettings"/> used when the a JSON response is generated.
-        /// </summary>
-        [PublicAPI, JsonIgnore]
-        public JsonSerializerSettings? JsonSerializerSettings { get; set; }
-    }
+    /// <summary>
+    /// The Culture to use.
+    /// Currently used for:
+    /// - Handlebars Transformer
+    /// </summary>
+	[JsonIgnore]
+    public CultureInfo Culture { get; set; } = CultureInfo.CurrentCulture;
 }

src/WireMock.Net/Settings/WireMockServerSettingsParser.cs

@@ -1,8 +1,12 @@
 using System.Diagnostics.CodeAnalysis;
+using System.Globalization;
+using System.Linq;
 using JetBrains.Annotations;
 using Stef.Validation;
 using WireMock.Logging;
+using WireMock.Matchers;
 using WireMock.Types;
+using WireMock.Util;
 
 namespace WireMock.Settings;
 
@@ -55,11 +59,14 @@ public static class WireMockServerSettingsParser
             WatchStaticMappingsInSubdirectories = parser.GetBoolValue("WatchStaticMappingsInSubdirectories"),
             HostingScheme = parser.GetEnumValue<HostingScheme>(nameof(WireMockServerSettings.HostingScheme)),
             DoNotSaveDynamicResponseInLogEntry = parser.GetBoolValue(nameof(WireMockServerSettings.DoNotSaveDynamicResponseInLogEntry)),
-            QueryParameterMultipleValueSupport = parser.GetEnumValue<QueryParameterMultipleValueSupport>(nameof(WireMockServerSettings.QueryParameterMultipleValueSupport))
+            QueryParameterMultipleValueSupport = parser.GetEnumValue<QueryParameterMultipleValueSupport>(nameof(WireMockServerSettings.QueryParameterMultipleValueSupport)),
+            Culture = parser.GetValue(nameof(WireMockServerSettings.Culture), strings => CultureInfoUtils.Parse(strings.FirstOrDefault()), CultureInfo.CurrentCulture)
         };
 
 #if USE_ASPNETCORE
         settings.CorsPolicyOptions = parser.GetEnumValue(nameof(WireMockServerSettings.CorsPolicyOptions), CorsPolicyOptions.None);
+        settings.ClientCertificateMode = parser.GetEnumValue(nameof(WireMockServerSettings.ClientCertificateMode), ClientCertificateMode.NoCertificate);
+        settings.AcceptAnyClientCertificate = parser.GetBoolValue(nameof(WireMockServerSettings.AcceptAnyClientCertificate));
 #endif
 
         var loggerType = parser.GetStringValue("WireMockLogger");
@@ -105,7 +112,12 @@ public static class WireMockServerSettingsParser
                 SaveMappingToFile = parser.GetBoolValue("SaveMappingToFile"),
                 UseDefinedRequestMatchers = parser.GetBoolValue(nameof(ProxyAndRecordSettings.UseDefinedRequestMatchers)),
                 AppendGuidToSavedMappingFile = parser.GetBoolValue(nameof(ProxyAndRecordSettings.AppendGuidToSavedMappingFile)),
-                Url = proxyUrl!
+                Url = proxyUrl!,
+                SaveMappingSettings = new ProxySaveMappingSettings
+                {
+                    StatusCodePattern = parser.GetStringValue("SaveMappingForStatusCodePattern", "*"),
+                    // HttpMethods = new ProxySaveMappingSetting<string[]>(parser.GetValues("DoNotSaveMappingForHttpMethods", new string[0]), MatchBehaviour.RejectOnMatch)
+                }
             };
 
             string? proxyAddress = parser.GetStringValue("WebProxyAddress");

src/WireMock.Net/Transformers/Handlebars/FileHelpers.cs

@@ -1,27 +1,26 @@
-using System;
 using HandlebarsDotNet;
 using HandlebarsDotNet.Helpers.Attributes;
 using HandlebarsDotNet.Helpers.Enums;
 using HandlebarsDotNet.Helpers.Helpers;
+using Stef.Validation;
 using WireMock.Handlers;
 
-namespace WireMock.Transformers.Handlebars
+namespace WireMock.Transformers.Handlebars;
+
+internal class FileHelpers : BaseHelpers, IHelpers
 {
-    internal class FileHelpers : BaseHelpers, IHelpers
+    private readonly IFileSystemHandler _fileSystemHandler;
+
+    public FileHelpers(IHandlebars context, IFileSystemHandler fileSystemHandler) : base(context)
     {
-        private readonly IFileSystemHandler _fileSystemHandler;
+        _fileSystemHandler = Guard.NotNull(fileSystemHandler);
+    }
 
-        public FileHelpers(IHandlebars context, IFileSystemHandler fileSystemHandler) : base(context)
-        {
-            _fileSystemHandler = fileSystemHandler ?? throw new ArgumentNullException(nameof(fileSystemHandler));
-        }
-
-        [HandlebarsWriter(WriterType.String, usage: HelperUsage.Both, passContext: true, name: "File")]
-        public string Read(Context context, string path)
-        {
-            var templateFunc = Context.Compile(path);
-            string transformed = templateFunc(context.Value);
-            return _fileSystemHandler.ReadResponseBodyAsString(transformed);
-        }
+    [HandlebarsWriter(WriterType.String, usage: HelperUsage.Both, passContext: true, name: "File")]
+    public string Read(Context context, string path)
+    {
+        var templateFunc = Context.Compile(path);
+        string transformed = templateFunc(context.Value);
+        return _fileSystemHandler.ReadResponseBodyAsString(transformed);
     }
 }

src/WireMock.Net/Transformers/Handlebars/HandlebarsContext.cs

@@ -1,18 +1,35 @@
 using HandlebarsDotNet;
+using HandlebarsDotNet.Helpers.Extensions;
+using Stef.Validation;
 using WireMock.Handlers;
 
-namespace WireMock.Transformers.Handlebars
+namespace WireMock.Transformers.Handlebars;
+
+internal class HandlebarsContext : IHandlebarsContext
 {
-    internal class HandlebarsContext : IHandlebarsContext
+    public IHandlebars Handlebars { get; }
+
+    public IFileSystemHandler FileSystemHandler { get; }
+
+    public HandlebarsContext(IHandlebars handlebars, IFileSystemHandler fileSystemHandler)
     {
-        public IHandlebars Handlebars { get; set; }
+        Handlebars = Guard.NotNull(handlebars);
+        FileSystemHandler = Guard.NotNull(fileSystemHandler);
+    }
 
-        public IFileSystemHandler FileSystemHandler { get; set; }
+    public string ParseAndRender(string text, object model)
+    {
+        var template = Handlebars.Compile(text);
+        return template(model);
+    }
 
-        public string ParseAndRender(string text, object model)
+    public object? ParseAndEvaluate(string text, object model)
+    {
+        if (Handlebars.TryEvaluate(text, model, out var result) && result is not UndefinedBindingResult)
         {
-            var template = Handlebars.Compile(text);
-            return template(model);
+            return result;
         }
+
+        return ParseAndRender(text, model);
     }
 }

src/WireMock.Net/Transformers/Handlebars/HandlebarsContextFactory.cs

@@ -1,33 +1,30 @@
-using System;
 using HandlebarsDotNet;
 using Stef.Validation;
-using WireMock.Handlers;
+using WireMock.Settings;
 
 namespace WireMock.Transformers.Handlebars;
 
 internal class HandlebarsContextFactory : ITransformerContextFactory
 {
-    private readonly IFileSystemHandler _fileSystemHandler;
-    private readonly Action<IHandlebars, IFileSystemHandler>? _action;
+    private readonly WireMockServerSettings _settings;
 
-    public HandlebarsContextFactory(IFileSystemHandler fileSystemHandler, Action<IHandlebars, IFileSystemHandler>? action)
+    public HandlebarsContextFactory(WireMockServerSettings settings)
     {
-        _fileSystemHandler = Guard.NotNull(fileSystemHandler);
-        _action = action;
+        _settings = Guard.NotNull(settings);
     }
 
     public ITransformerContext Create()
     {
-        var handlebars = HandlebarsDotNet.Handlebars.Create();
-
-        WireMockHandlebarsHelpers.Register(handlebars, _fileSystemHandler);
-
-        _action?.Invoke(handlebars, _fileSystemHandler);
-
-        return new HandlebarsContext
+        var config = new HandlebarsConfiguration
         {
-            Handlebars = handlebars,
-            FileSystemHandler = _fileSystemHandler
+            FormatProvider = _settings.Culture
         };
+        var handlebars = HandlebarsDotNet.Handlebars.Create(config);
+
+        WireMockHandlebarsHelpers.Register(handlebars, _settings.FileSystemHandler);
+
+        _settings.HandlebarsRegistrationCallback?.Invoke(handlebars, _settings.FileSystemHandler);
+
+        return new HandlebarsContext(handlebars, _settings.FileSystemHandler);
     }
 }