1.5.24

* Escape quotes in generated C# strings

* Handle response with JSON body in C# code generator

CHANGELOG.md

@@ -1,3 +1,15 @@
+# 1.5.24 (07 May 2023)
+- [#926](https://github.com/WireMock-Net/WireMock.Net/pull/926) - Fix C# mapping code generator for header names [bug] contributed by [cezarypiatek](https://github.com/cezarypiatek)
+- [#927](https://github.com/WireMock-Net/WireMock.Net/pull/927) - Enrich generated code with status code [feature] contributed by [cezarypiatek](https://github.com/cezarypiatek)
+- [#930](https://github.com/WireMock-Net/WireMock.Net/pull/930) - Update C# mapping code generator for WithStatusCode [feature] contributed by [StefH](https://github.com/StefH)
+- [#931](https://github.com/WireMock-Net/WireMock.Net/pull/931) - Add property 'IsStartedWithAdminInterface' to 'IWireMockServer' [feature] contributed by [StefH](https://github.com/StefH)
+- [#933](https://github.com/WireMock-Net/WireMock.Net/pull/933) - C# code generator improvements [feature] contributed by [cezarypiatek](https://github.com/cezarypiatek)
+
+# 1.5.23 (23 April 2023)
+- [#922](https://github.com/WireMock-Net/WireMock.Net/pull/922) - Add WithProbability [feature] contributed by [StefH](https://github.com/StefH)
+- [#924](https://github.com/WireMock-Net/WireMock.Net/pull/924) - Allow removal of prefix when proxying to another server (#630) [feature] contributed by [nudejustin](https://github.com/nudejustin)
+- [#925](https://github.com/WireMock-Net/WireMock.Net/pull/925) - Add IgnoreCase option to ProxyUrlReplaceSettings [feature] contributed by [StefH](https://github.com/StefH)
+
 # 1.5.22 (08 April 2023)
 - [#914](https://github.com/WireMock-Net/WireMock.Net/pull/914) - #912 add excluded params to proxy mapping [feature] contributed by [walidhaidarii](https://github.com/walidhaidarii)
 - [#916](https://github.com/WireMock-Net/WireMock.Net/pull/916) - Include WireMockOpenApiParser project [feature] contributed by [StefH](https://github.com/StefH)

Directory.Build.props

@@ -4,7 +4,7 @@
     </PropertyGroup>
 
     <PropertyGroup>
-        <VersionPrefix>1.5.22</VersionPrefix>
+        <VersionPrefix>1.5.24</VersionPrefix>
         <PackageIcon>WireMock.Net-Logo.png</PackageIcon>
         <PackageProjectUrl>https://github.com/WireMock-Net/WireMock.Net</PackageProjectUrl>
         <PackageLicenseExpression>Apache-2.0</PackageLicenseExpression>
@@ -12,6 +12,7 @@
         <RepositoryType>git</RepositoryType>
         <RepositoryUrl>https://github.com/WireMock-Net/WireMock.Net</RepositoryUrl>
         <ApplicationIcon>../../resources/WireMock.Net-Logo.ico</ApplicationIcon>
+        <PackageReadmeFile>PackageReadme.md</PackageReadmeFile>
         <LangVersion>Latest</LangVersion>
         <Nullable>enable</Nullable>
     </PropertyGroup>
@@ -29,7 +30,7 @@
 
     <ItemGroup>
         <None Include="../../resources/WireMock.Net-Logo.png" Pack="true" PackagePath="" />
-        <!--<None Include="../../PackageReadme.md" Pack="true" PackagePath=""/>-->
+        <None Include="../../PackageReadme.md" Pack="true" PackagePath=""/>
     </ItemGroup>
 
     <Choose>

Generate-ReleaseNotes.cmd

@@ -1,6 +1,6 @@
 rem https://github.com/StefH/GitHubReleaseNotes
 
-SET version=1.5.22
+SET version=1.5.24
 
 GitHubReleaseNotes --output CHANGELOG.md --skip-empty-releases --exclude-labels question invalid doc duplicate --version %version% --token %GH_TOKEN%
 

PackageReadme.md

@@ -0,0 +1,55 @@
+## WireMock.Net
+Lightweight Http Mocking Server for .NET, inspired by [WireMock(http://WireMock.org) from the Java landscape.
+
+### :star: Key Features
+* HTTP response stubbing, matchable on URL/Path, headers, cookies and body content patterns
+* Library can be used in unit tests and integration tests
+* Runs as a standalone process, as windows service, as Azure/IIS or as docker
+* Configurable via a fluent C# .NET API, JSON files and JSON over HTTP
+* Record/playback of stubs (proxying)
+* Per-request conditional proxying
+* Stateful behaviour simulation
+* Response templating / transformation using Handlebars and extensions
+* Can be used locally or in CI/CD scenarios
+
+### :star: Stubbing
+A core feature of WireMock.Net is the ability to return predefined HTTP responses for requests matching criteria.
+See [Wiki : Stubbing](https://github.com/WireMock-Net/WireMock.Net/wiki/Stubbing).
+
+### :star: Request Matching
+WireMock.Net support advanced request-matching logic, see [Wiki : Request Matching](https://github.com/WireMock-Net/WireMock.Net/wiki/Request-Matching).
+
+### :star: Response Templating
+The response which is returned WireMock.Net can be changed using templating. This is described here [Wiki : Response Templating](https://github.com/WireMock-Net/WireMock.Net/wiki/Response-Templating).
+
+### :star: Admin API Reference
+The WireMock admin API provides functionality to define the mappings via a http interface see [Wiki : Admin API Reference](https://github.com/StefH/WireMock.Net/wiki/Admin-API-Reference).
+
+### :star: Using
+WireMock.Net can be used in several ways:
+
+#### UnitTesting
+You can use your favorite test framework and use WireMock within your tests, see
+[Wiki : UnitTesting](https://github.com/StefH/WireMock.Net/wiki/Using-WireMock-in-UnitTests).
+
+#### As a dotnet tool
+It's simple to install WireMock.Net as (global) dotnet tool, see [Wiki : dotnet tool](https://github.com/StefH/WireMock.Net/wiki/WireMock-as-dotnet-tool).
+
+#### As standalone process / console application
+This is quite straight forward to launch a mock server within a console application, see [Wiki : Standalone Process](https://github.com/StefH/WireMock.Net/wiki/WireMock-as-a-standalone-process).
+
+#### As a Windows Service
+You can also run WireMock.Net as a Windows Service, follow this [WireMock-as-a-Windows-Service](https://github.com/WireMock-Net/WireMock.Net/wiki/WireMock-as-a-Windows-Service).
+
+#### As a Web Job in Azure or application in IIS
+See this link [WireMock-as-a-(Azure)-Web-App](https://github.com/WireMock-Net/WireMock.Net/wiki/WireMock-as-a-(Azure)-Web-App)
+
+#### In a docker container
+There is also a Linux and Windows-Nano container available at [hub.docker.com](https://hub.docker.com/r/sheyenrath).
+For more details see also [Docker](https://github.com/WireMock-Net/WireMock.Net-docker).
+
+#### HTTPS / SSL
+More details on using HTTPS (SSL) can be found here [Wiki : HTTPS](https://github.com/WireMock-Net/WireMock.Net/wiki/Using-HTTPS-(SSL))
+
+## :books: Documentation
+For more info, see also this WIKI page: [What is WireMock.Net](https://github.com/WireMock-Net/WireMock.Net/wiki/What-Is-WireMock.Net).

PackageReleaseNotes.txt

@@ -1,6 +1,8 @@
-# 1.5.22 (08 April 2023)
-- #914 #912 add excluded params to proxy mapping [feature]
-- #916 Include WireMockOpenApiParser project [feature]
-- #912 Feature: adding excluded params to proxy and records settings [feature]
+# 1.5.24 (07 May 2023)
+- #926 Fix C# mapping code generator for header names [bug]
+- #927 Enrich generated code with status code [feature]
+- #930 Update C# mapping code generator for WithStatusCode [feature]
+- #931 Add property 'IsStartedWithAdminInterface' to 'IWireMockServer' [feature]
+- #933 C# code generator improvements [feature]
 
 The full release notes can be found here: https://github.com/WireMock-Net/WireMock.Net/blob/master/CHANGELOG.md

README.md

@@ -1,24 +1,24 @@
 # WireMock.Net
-A C# .NET version based on [mock4net](https://github.com/alexvictoor/mock4net) which mimics the functionality from the JAVA based [WireMock.org](http://WireMock.org).
+A C# .NET version based on [mock4net](https://github.com/alexvictoor/mock4net) which mimics the functionality from the JAVA based [WireMock](http://WireMock.org).
 
 For more info, see also this WIKI page: [What is WireMock.Net](https://github.com/WireMock-Net/WireMock.Net/wiki/What-Is-WireMock.Net).
 
-## Key Features
+## :star: Key Features
 * HTTP response stubbing, matchable on URL/Path, headers, cookies and body content patterns
 * Library can be used in unit tests and integration tests
 * Runs as a standalone process, as windows service, as Azure/IIS or as docker
-* Configurable via a fluent DotNet API, JSON files and JSON over HTTP
+* Configurable via a fluent C# .NET API, JSON files and JSON over HTTP
 * Record/playback of stubs (proxying)
 * Per-request conditional proxying
 * Stateful behaviour simulation
 * Response templating / transformation using Handlebars and extensions
 * Can be used locally or in CI/CD scenarios
 
-## Blogs
+## :memo: Blogs
 - [mStack.nl : Generate C# Code from Mapping(s)](https://mstack.nl/blog/20230201-wiremock.net-tocode/)
 
 
-## Project Info
+## :computer: Project Info
 | | |
 | --- | --- |
 | ***Project*** |   |
@@ -31,7 +31,7 @@ For more info, see also this WIKI page: [What is WireMock.Net](https://github.co
 |   **Sonar Bugs** | [![Sonar Bugs](https://sonarcloud.io/api/project_badges/measure?project=WireMock-Net_WireMock.Net&metric=bugs)](https://sonarcloud.io/project/issues?id=WireMock-Net_WireMock.Net&resolved=false&types=BUG) [![Sonar Code Smells](https://sonarcloud.io/api/project_badges/measure?project=WireMock-Net_WireMock.Net&metric=code_smells)](https://sonarcloud.io/project/issues?id=WireMock-Net_WireMock.Net&resolved=false&types=CODE_SMELL) |
 |   **Coverage** | [![Sonar Coverage](https://sonarcloud.io/api/project_badges/measure?project=WireMock-Net_WireMock.Net&metric=coverage)](https://sonarcloud.io/component_measures?id=WireMock-Net_WireMock.Net&metric=coverage) [![codecov](https://codecov.io/gh/WireMock-Net/WireMock.Net/branch/master/graph/badge.svg)](https://codecov.io/gh/WireMock-Net/WireMock.Net)|
 
-### NuGet packages
+### :package: NuGet packages
 
 | | Official | Preview [:information_source:](https://github.com/WireMock-Net/WireMock.Net/wiki/MyGet-preview-versions) |
 | - | - | - |
@@ -45,23 +45,23 @@ For more info, see also this WIKI page: [What is WireMock.Net](https://github.co
 |   **WireMock.Org.RestClient** | [![NuGet Badge WireMock.Org.RestClient](https://buildstats.info/nuget/WireMock.Org.RestClient)](https://www.nuget.org/packages/WireMock.Org.RestClient) | [![MyGet Badge WireMock.Org.RestClient](https://buildstats.info/myget/wiremock-net/WireMock.Org.RestClient?includePreReleases=true)](https://www.myget.org/feed/wiremock-net/package/nuget/WireMock.Org.RestClient)
 
 
-## Development
+## :memo: Development
 For the supported frameworks and build information, see [this](https://github.com/WireMock-Net/WireMock.Net/wiki/Development-Information) page.
 
-## Stubbing
+## :star: Stubbing
 A core feature of WireMock.Net is the ability to return predefined HTTP responses for requests matching criteria.
 See [Wiki : Stubbing](https://github.com/WireMock-Net/WireMock.Net/wiki/Stubbing).
 
-## Request Matching
+## :star: Request Matching
 WireMock.Net support advanced request-matching logic, see [Wiki : Request Matching](https://github.com/WireMock-Net/WireMock.Net/wiki/Request-Matching).
 
-## Response Templating
+## :star: Response Templating
 The response which is returned WireMock.Net can be changed using templating. This is described here [Wiki : Response Templating](https://github.com/WireMock-Net/WireMock.Net/wiki/Response-Templating).
 
-## Admin API Reference
+## :star: Admin API Reference
 The WireMock admin API provides functionality to define the mappings via a http interface see [Wiki : Admin API Reference](https://github.com/StefH/WireMock.Net/wiki/Admin-API-Reference).
 
-## Using
+## :star: Using
 WireMock.Net can be used in several ways:
 
 ### UnitTesting

WireMock.Net Solution.sln

@@ -28,6 +28,7 @@ Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Solution Items", "Solution
 		.github\FUNDING.yml = .github\FUNDING.yml
 		Generate-ReleaseNotes.cmd = Generate-ReleaseNotes.cmd
 		nuget.config = nuget.config
+		PackageReadme.md = PackageReadme.md
 		PackageReleaseNotes.template = PackageReleaseNotes.template
 		PackageReleaseNotes.txt = PackageReleaseNotes.txt
 		README.md = README.md

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

@@ -1,19 +1,18 @@
-namespace WireMock.Admin.Mappings
+namespace WireMock.Admin.Mappings;
+
+/// <summary>
+/// Fault Model
+/// </summary>
+[FluentBuilder.AutoGenerateBuilder]
+public class FaultModel
 {
     /// <summary>
-    /// Fault Model
+    /// Gets or sets the fault. Can be null, "", NONE, EMPTY_RESPONSE or MALFORMED_RESPONSE_CHUNK.
     /// </summary>
-    [FluentBuilder.AutoGenerateBuilder]
-    public class FaultModel
-    {
-        /// <summary>
-        /// Gets or sets the fault. Can be null, "", NONE, EMPTY_RESPONSE, MALFORMED_RESPONSE_CHUNK or RANDOM_DATA_THEN_CLOSE.
-        /// </summary>
-        public string Type { get; set; }
+    public string? Type { get; set; }
 
-        /// <summary>
-        /// Gets or sets the fault percentage.
-        /// </summary>
-        public double? Percentage { get; set; }
-    }
+    /// <summary>
+    /// Gets or sets the fault percentage.
+    /// </summary>
+    public double? Percentage { get; set; }
 }

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

@@ -1,5 +1,4 @@
 using System;
-using System.Collections.Generic;
 using WireMock.Models;
 
 namespace WireMock.Admin.Mappings;
@@ -94,4 +93,9 @@ public class MappingModel
     /// </example>
     /// </summary>
     public object? Data { get; set; }
+
+    /// <summary> 
+    /// The probability when this request should be matched. Value is between 0 and 1. [Optional]
+    /// </summary>
+    public double? Probability { get; set; }
 }

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

@@ -1,71 +1,76 @@
-namespace WireMock.Admin.Settings;
-
-[FluentBuilder.AutoGenerateBuilder]
-public class ProxyAndRecordSettingsModel
-{
-    /// <summary>
-    /// The clientCertificate thumbprint or subject name fragment to use.
-    /// Example thumbprint : "D2DBF135A8D06ACCD0E1FAD9BFB28678DF7A9818". Example subject name: "www.google.com""
-    /// </summary>
-    public string ClientX509Certificate2ThumbprintOrSubjectName { get; set; }
-
-    /// <summary>
-    /// Defines the WebProxySettings.
-    /// </summary>
-    public WebProxySettingsModel WebProxySettings { get; set; }
-
-    /// <summary>
-    /// Proxy requests should follow redirection (30x).
-    /// </summary>
-    public bool? AllowAutoRedirect { get; set; }
-
-    /// <summary>
-    /// The URL to proxy.
-    /// </summary>
-    public string Url { get; set; }
-
-    /// <summary>
-    /// Save the mapping for each request/response to the internal Mappings.
-    /// </summary>
-    public bool SaveMapping { get; set; }
-
-    /// <summary>
-    /// Save the mapping for each request/response also to a file. (Note that SaveMapping must also be set to true.)
-    /// </summary>
-    public bool SaveMappingToFile { get; set; }
-
-    /// <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>
-    public string SaveMappingForStatusCodePattern { get; set; } = "*";
-
-    /// <summary>
-    /// Defines a list from headers which will be excluded from the saved mappings.
-    /// </summary>
-    public string[] ExcludedHeaders { get; set; }
-
-    /// <summary>
-    /// Defines a list of cookies which will be excluded from the saved mappings.
-    /// </summary>
-    public string[] ExcludedCookies { get; set; }
-
-    /// <summary>
-    /// Prefer the Proxy Mapping over the saved Mapping (in case SaveMapping is set to <c>true</c>).
-    /// </summary>
-    // public bool PreferProxyMapping { get; set; }
-
-    /// <summary>
-    /// When SaveMapping is set to <c>true</c>, this setting can be used to control the behavior of the generated request matchers for the new mapping.
-    /// - <c>false</c>, the default matchers will be used.
-    /// - <c>true</c>, the defined mappings in the request wil be used for the new mapping.
-    ///
-    /// Default value is false.
-    /// </summary>
-    public bool UseDefinedRequestMatchers { get; set; }
-
-    /// <summary>
-    /// Append an unique GUID to the filename from the saved mapping file.
-    /// </summary>
-    public bool AppendGuidToSavedMappingFile { get; set; }
+namespace WireMock.Admin.Settings;
+
+[FluentBuilder.AutoGenerateBuilder]
+public class ProxyAndRecordSettingsModel
+{
+    /// <summary>
+    /// The clientCertificate thumbprint or subject name fragment to use.
+    /// Example thumbprint : "D2DBF135A8D06ACCD0E1FAD9BFB28678DF7A9818". Example subject name: "www.google.com""
+    /// </summary>
+    public string ClientX509Certificate2ThumbprintOrSubjectName { get; set; }
+
+    /// <summary>
+    /// Defines the WebProxySettings.
+    /// </summary>
+    public WebProxySettingsModel WebProxySettings { get; set; }
+
+    /// <summary>
+    /// Proxy requests should follow redirection (30x).
+    /// </summary>
+    public bool? AllowAutoRedirect { get; set; }
+
+    /// <summary>
+    /// The URL to proxy.
+    /// </summary>
+    public string Url { get; set; }
+
+    /// <summary>
+    /// Save the mapping for each request/response to the internal Mappings.
+    /// </summary>
+    public bool SaveMapping { get; set; }
+
+    /// <summary>
+    /// Save the mapping for each request/response also to a file. (Note that SaveMapping must also be set to true.)
+    /// </summary>
+    public bool SaveMappingToFile { get; set; }
+
+    /// <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>
+    public string SaveMappingForStatusCodePattern { get; set; } = "*";
+
+    /// <summary>
+    /// Defines a list from headers which will be excluded from the saved mappings.
+    /// </summary>
+    public string[] ExcludedHeaders { get; set; }
+
+    /// <summary>
+    /// Defines a list of cookies which will be excluded from the saved mappings.
+    /// </summary>
+    public string[] ExcludedCookies { get; set; }
+
+    /// <summary>
+    /// Prefer the Proxy Mapping over the saved Mapping (in case SaveMapping is set to <c>true</c>).
+    /// </summary>
+    // public bool PreferProxyMapping { get; set; }
+
+    /// <summary>
+    /// When SaveMapping is set to <c>true</c>, this setting can be used to control the behavior of the generated request matchers for the new mapping.
+    /// - <c>false</c>, the default matchers will be used.
+    /// - <c>true</c>, the defined mappings in the request wil be used for the new mapping.
+    ///
+    /// Default value is false.
+    /// </summary>
+    public bool UseDefinedRequestMatchers { get; set; }
+
+    /// <summary>
+    /// Append an unique GUID to the filename from the saved mapping file.
+    /// </summary>
+    public bool AppendGuidToSavedMappingFile { get; set; }
+
+    /// <summary>
+    /// Defines the Replace Settings
+    /// </summary>
+    public ProxyUrlReplaceSettingsModel? ReplaceSettings { get; set; }
 }

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

@@ -0,0 +1,23 @@
+namespace WireMock.Admin.Settings;
+
+/// <summary>
+/// Defines an old path param and a new path param to be replaced when proxying.
+/// </summary>
+[FluentBuilder.AutoGenerateBuilder]
+public class ProxyUrlReplaceSettingsModel
+{
+    /// <summary>
+    /// The old path value to be replaced by the new path value
+    /// </summary>
+    public string OldValue { get; set; } = null!;
+
+    /// <summary>
+    /// The new path value to replace the old value with
+    /// </summary>
+    public string NewValue { get; set; } = null!;
+
+    /// <summary>
+    /// Defines if the case should be ignore when replacing.
+    /// </summary>
+    public bool IgnoreCase { get; set; }
+}

src/WireMock.Net.Abstractions/ResponseBuilders/FaultType.cs

@@ -1,23 +1,23 @@
-namespace WireMock.ResponseBuilders
+// ReSharper disable InconsistentNaming
+namespace WireMock.ResponseBuilders;
+
+/// <summary>
+/// The FaultType enumeration
+/// </summary>
+public enum FaultType
 {
     /// <summary>
-    /// The FaultType enumeration
+    /// No Fault
     /// </summary>
-    public enum FaultType
-    {
-        /// <summary>
-        /// No Fault
-        /// </summary>
-        NONE,
+    NONE,
 
-        /// <summary>
-        /// Return a completely empty response.
-        /// </summary>
-        EMPTY_RESPONSE,
+    /// <summary>
+    /// Return a completely empty response.
+    /// </summary>
+    EMPTY_RESPONSE,
 
-        /// <summary>
-        /// Send a defined status header, then garbage, then close the connection.
-        /// </summary>
-        MALFORMED_RESPONSE_CHUNK
-    }
+    /// <summary>
+    /// Send a defined status header, then garbage, then close the connection.
+    /// </summary>
+    MALFORMED_RESPONSE_CHUNK
 }

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

@@ -17,6 +17,11 @@ public interface IWireMockServer : IDisposable
     /// </summary>
     bool IsStarted { get; }
 
+    /// <summary>
+    /// Gets a value indicating whether this server is started with the admin interface enabled.
+    /// </summary>
+    bool IsStartedWithAdminInterface { get; }
+
     /// <summary>
     /// Gets the request logs.
     /// </summary>

src/WireMock.Net/Compatibility/StringExtensions.cs

@@ -0,0 +1,15 @@
+#if NET451 || NET452 || NET46 || NET451 || NET461 || NETSTANDARD1_3 || NETSTANDARD2_0
+using System.Text.RegularExpressions;
+
+// ReSharper disable once CheckNamespace
+namespace System;
+
+internal static class StringExtensions
+{
+    public static string Replace(this string text, string oldValue, string newValue, StringComparison stringComparison)
+    {
+        var options = stringComparison == StringComparison.OrdinalIgnoreCase ? RegexOptions.IgnoreCase : RegexOptions.None;
+        return Regex.Replace(text, oldValue, newValue, options);
+    }
+}
+#endif

src/WireMock.Net/IMapping.cs

@@ -1,5 +1,4 @@
 using System;
-using System.Collections.Generic;
 using System.Threading.Tasks;
 using WireMock.Matchers.Request;
 using WireMock.Models;
@@ -132,6 +131,11 @@ public interface IMapping
     /// </summary>
     object? Data { get; }
 
+    /// <summary> 
+    /// The probability when this request should be matched. Value is between 0 and 1. [Optional]
+    /// </summary>
+    double? Probability { get; }
+
     /// <summary>
     /// ProvideResponseAsync
     /// </summary>

src/WireMock.Net/Json/DynamicPropertyWithValue.cs

@@ -4,7 +4,7 @@ using System.Linq.Dynamic.Core;
 
 namespace WireMock.Json;
 
-public class DynamicPropertyWithValue : DynamicProperty
+internal class DynamicPropertyWithValue : DynamicProperty
 {
     public object? Value { get; }
 

src/WireMock.Net/Mapping.cs

@@ -75,6 +75,9 @@ public class Mapping : IMapping
     /// <inheritdoc />
     public object? Data { get; }
 
+    /// <inheritdoc />
+    public double? Probability { get; }
+
     /// <summary>
     /// Initializes a new instance of the <see cref="Mapping"/> class.
     /// </summary>
@@ -95,6 +98,7 @@ public class Mapping : IMapping
     /// <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>
+    /// <param name="probability">Define the probability when this request should be matched. [Optional]</param>
     public Mapping(
         Guid guid,
         DateTime updatedAt,
@@ -112,7 +116,8 @@ public class Mapping : IMapping
         IWebhook[]? webhooks,
         bool? useWebhooksFireAndForget,
         ITimeSettings? timeSettings,
-        object? data)
+        object? data,
+        double? probability)
     {
         Guid = guid;
         UpdatedAt = updatedAt;
@@ -131,6 +136,7 @@ public class Mapping : IMapping
         UseWebhooksFireAndForget = useWebhooksFireAndForget;
         TimeSettings = timeSettings;
         Data = data;
+        Probability = probability;
     }
 
     /// <inheritdoc cref="IMapping.ProvideResponseAsync" />

src/WireMock.Net/MappingBuilder.cs

@@ -69,12 +69,7 @@ public class MappingBuilder : IMappingBuilder
     /// <inheritdoc />
     public MappingModel[] GetMappings()
     {
-        return GetMappingsInternal().Select(_mappingConverter.ToMappingModel).ToArray();
-    }
-
-    internal IMapping[] GetMappingsInternal()
-    {
-        return _options.Mappings.Values.ToArray().Where(m => !m.IsAdminInterface).ToArray();
+        return GetNonAdminMappings().Select(_mappingConverter.ToMappingModel).ToArray();
     }
 
     /// <inheritdoc />
@@ -86,7 +81,7 @@ public class MappingBuilder : IMappingBuilder
     /// <inheritdoc />
     public string? ToCSharpCode(Guid guid, MappingConverterType converterType)
     {
-        var mapping = GetMappingsInternal().FirstOrDefault(m => m.Guid == guid);
+        var mapping = GetNonAdminMappings().FirstOrDefault(m => m.Guid == guid);
         if (mapping is null)
         {
             return null;
@@ -101,7 +96,7 @@ public class MappingBuilder : IMappingBuilder
     {
         var sb = new StringBuilder();
         bool addStart = true;
-        foreach (var mapping in GetMappingsInternal())
+        foreach (var mapping in GetNonAdminMappings())
         {
             sb.AppendLine(_mappingConverter.ToCSharpCode(mapping, new MappingConverterSettings { AddStart = addStart, ConverterType = converterType }));
 
@@ -123,7 +118,7 @@ public class MappingBuilder : IMappingBuilder
     /// <inheritdoc />
     public void SaveMappingsToFolder(string? folder)
     {
-        foreach (var mapping in GetNonAdminMappings().Where(m => !m.IsAdminInterface))
+        foreach (var mapping in GetNonAdminMappings())
         {
             _mappingToFileSaver.SaveMappingToFile(mapping, folder);
         }
@@ -131,7 +126,7 @@ public class MappingBuilder : IMappingBuilder
 
     private IMapping[] GetNonAdminMappings()
     {
-        return _options.Mappings.Values.ToArray();
+        return _options.Mappings.Values.Where(m => !m.IsAdminInterface).OrderBy(m => m.UpdatedAt).ToArray();
     }
 
     private void RegisterMapping(IMapping mapping, bool saveToFile)

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

@@ -1,6 +1,5 @@
 using System.Collections.Generic;
 using System.Linq;
-using JetBrains.Annotations;
 using Stef.Validation;
 
 namespace WireMock.Matchers.Request;
@@ -25,9 +24,9 @@ public abstract class RequestMessageCompositeMatcher : IRequestMatcher
     /// </summary>
     /// <param name="requestMatchers">The request matchers.</param>
     /// <param name="type">The CompositeMatcherType type (Defaults to 'And')</param>
-    protected RequestMessageCompositeMatcher([NotNull] IEnumerable<IRequestMatcher> requestMatchers, CompositeMatcherType type = CompositeMatcherType.And)
+    protected RequestMessageCompositeMatcher(IEnumerable<IRequestMatcher> requestMatchers, CompositeMatcherType type = CompositeMatcherType.And)
     {
-        Guard.NotNull(requestMatchers, nameof(requestMatchers));
+        Guard.NotNull(requestMatchers);
 
         _type = type;
         RequestMatchers = requestMatchers;

src/WireMock.Net/Owin/AspNetCoreSelfHost.cs

@@ -11,6 +11,7 @@ using Microsoft.Extensions.DependencyInjection;
 using Stef.Validation;
 using WireMock.Logging;
 using WireMock.Owin.Mappers;
+using WireMock.Services;
 using WireMock.Util;
 
 namespace WireMock.Owin
@@ -66,6 +67,7 @@ namespace WireMock.Owin
                 {
                     services.AddSingleton(_wireMockMiddlewareOptions);
                     services.AddSingleton<IMappingMatcher, MappingMatcher>();
+                    services.AddSingleton<IRandomizerDoubleBetween0And1, RandomizerDoubleBetween0And1>();
                     services.AddSingleton<IOwinRequestMapper, OwinRequestMapper>();
                     services.AddSingleton<IOwinResponseMapper, OwinResponseMapper>();
 

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

@@ -62,11 +62,11 @@ namespace WireMock.Owin.Mappers
             switch (responseMessage.FaultType)
             {
                 case FaultType.EMPTY_RESPONSE:
-                    bytes = IsFault(responseMessage) ? new byte[0] : GetNormalBody(responseMessage);
+                    bytes = IsFault(responseMessage) ? EmptyArray<byte>.Value : GetNormalBody(responseMessage);
                     break;
 
                 case FaultType.MALFORMED_RESPONSE_CHUNK:
-                    bytes = GetNormalBody(responseMessage) ?? new byte[0];
+                    bytes = GetNormalBody(responseMessage) ?? EmptyArray<byte>.Value;
                     if (IsFault(responseMessage))
                     {
                         bytes = bytes.Take(bytes.Length / 2).Union(_randomizerBytes.Generate()).ToArray();
@@ -87,7 +87,7 @@ namespace WireMock.Owin.Mappers
 
                 case { } typeAsString when typeAsString == typeof(string):
                     // Note: this case will also match on null 
-                    int.TryParse(responseMessage.StatusCode as string, out int result);
+                    int.TryParse(responseMessage.StatusCode as string, out var result);
                     response.StatusCode = MapStatusCode(result);
                     break;
 

src/WireMock.Net/Owin/MappingMatcher.cs

@@ -1,18 +1,21 @@
 using System;
 using System.Collections.Generic;
 using System.Linq;
-using WireMock.Extensions;
 using Stef.Validation;
+using WireMock.Extensions;
+using WireMock.Services;
 
 namespace WireMock.Owin;
 
 internal class MappingMatcher : IMappingMatcher
 {
     private readonly IWireMockMiddlewareOptions _options;
+    private readonly IRandomizerDoubleBetween0And1 _randomizerDoubleBetween0And1;
 
-    public MappingMatcher(IWireMockMiddlewareOptions options)
+    public MappingMatcher(IWireMockMiddlewareOptions options, IRandomizerDoubleBetween0And1 randomizerDoubleBetween0And1)
     {
         _options = Guard.NotNull(options);
+        _randomizerDoubleBetween0And1 = Guard.NotNull(randomizerDoubleBetween0And1);
     }
 
     public (MappingMatcherResult? Match, MappingMatcherResult? Partial) FindBestMatch(RequestMessage request)
@@ -21,7 +24,12 @@ internal class MappingMatcher : IMappingMatcher
 
         var possibleMappings = new List<MappingMatcherResult>();
 
-        foreach (var mapping in _options.Mappings.Values.Where(m => m.TimeSettings.IsValid()))
+        var mappings = _options.Mappings.Values
+            .Where(m => m.TimeSettings.IsValid())
+            .Where(m => m.Probability is null || m.Probability <= _randomizerDoubleBetween0And1.Generate())
+            .ToArray();
+
+        foreach (var mapping in mappings)
         {
             try
             {

src/WireMock.Net/Owin/OwinSelfHost.cs

@@ -9,6 +9,9 @@ using JetBrains.Annotations;
 using WireMock.Logging;
 using WireMock.Owin.Mappers;
 using Stef.Validation;
+using RandomDataGenerator.FieldOptions;
+using RandomDataGenerator.Randomizers;
+using WireMock.Services;
 
 namespace WireMock.Owin;
 
@@ -70,7 +73,7 @@ internal class OwinSelfHost : IOwinSelfHost
         {
             var requestMapper = new OwinRequestMapper();
             var responseMapper = new OwinResponseMapper(_options);
-            var matcher = new MappingMatcher(_options);
+            var matcher = new MappingMatcher(_options, new RandomizerDoubleBetween0And1());
 
             Action<IAppBuilder> startup = app =>
             {

src/WireMock.Net/Proxy/ProxyHelper.cs

@@ -37,7 +37,19 @@ internal class ProxyHelper
         var requiredUri = new Uri(url);
 
         // Create HttpRequestMessage
-        var httpRequestMessage = HttpRequestMessageHelper.Create(requestMessage, url);
+        var replaceSettings = proxyAndRecordSettings.ReplaceSettings;
+        string proxyUrl;
+        if (replaceSettings is not null)
+        {
+            var stringComparison = replaceSettings.IgnoreCase ? StringComparison.OrdinalIgnoreCase : StringComparison.Ordinal;
+            proxyUrl = url.Replace(replaceSettings.OldValue, replaceSettings.NewValue, stringComparison);
+        }
+        else
+        {
+            proxyUrl = url;
+        }
+
+        var httpRequestMessage = HttpRequestMessageHelper.Create(requestMessage, proxyUrl);
 
         // Call the URL
         var httpResponseMessage = await client.SendAsync(httpRequestMessage, HttpCompletionOption.ResponseContentRead).ConfigureAwait(false);

src/WireMock.Net/RequestBuilders/IRequestBuilder.cs

@@ -1,9 +1,8 @@
-namespace WireMock.RequestBuilders
+namespace WireMock.RequestBuilders;
+
+/// <summary>
+/// IRequestBuilder
+/// </summary>
+public interface IRequestBuilder : IClientIPRequestBuilder
 {
-    /// <summary>
-    /// IRequestBuilder
-    /// </summary>
-    public interface IRequestBuilder : IClientIPRequestBuilder
-    {
-    }
 }

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

@@ -1,82 +1,81 @@
-using System;
+using System;
 using System.Collections.Generic;
 using WireMock.Matchers;
 using WireMock.Matchers.Request;
 using Stef.Validation;
 
-namespace WireMock.RequestBuilders
+namespace WireMock.RequestBuilders;
+
+public partial class Request
 {
-    public partial class Request
+    /// <inheritdoc cref="ICookiesRequestBuilder.WithCookie(string, string, MatchBehaviour)"/>
+    public IRequestBuilder WithCookie(string name, string pattern, MatchBehaviour matchBehaviour)
     {
-        /// <inheritdoc cref="ICookiesRequestBuilder.WithCookie(string, string, MatchBehaviour)"/>
-        public IRequestBuilder WithCookie(string name, string pattern, MatchBehaviour matchBehaviour)
-        {
-            return WithCookie(name, pattern, true, matchBehaviour);
-        }
+        return WithCookie(name, pattern, true, matchBehaviour);
+    }
 
-        /// <inheritdoc cref="ICookiesRequestBuilder.WithCookie(string, string, bool, MatchBehaviour)"/>
-        public IRequestBuilder WithCookie(string name, string pattern, bool ignoreCase = true, MatchBehaviour matchBehaviour = MatchBehaviour.AcceptOnMatch)
-        {
-            Guard.NotNull(name, nameof(name));
-            Guard.NotNull(pattern, nameof(pattern));
+    /// <inheritdoc cref="ICookiesRequestBuilder.WithCookie(string, string, bool, MatchBehaviour)"/>
+    public IRequestBuilder WithCookie(string name, string pattern, bool ignoreCase = true, MatchBehaviour matchBehaviour = MatchBehaviour.AcceptOnMatch)
+    {
+        Guard.NotNull(name, nameof(name));
+        Guard.NotNull(pattern, nameof(pattern));
 
-            _requestMatchers.Add(new RequestMessageCookieMatcher(matchBehaviour, name, pattern, ignoreCase));
-            return this;
-        }
+        _requestMatchers.Add(new RequestMessageCookieMatcher(matchBehaviour, name, pattern, ignoreCase));
+        return this;
+    }
 
-        /// <inheritdoc cref="ICookiesRequestBuilder.WithCookie(string, string[], MatchBehaviour)"/>
-        public IRequestBuilder WithCookie(string name, string[] patterns, MatchBehaviour matchBehaviour)
-        {
-            return WithCookie(name, patterns, true, matchBehaviour);
-        }
+    /// <inheritdoc cref="ICookiesRequestBuilder.WithCookie(string, string[], MatchBehaviour)"/>
+    public IRequestBuilder WithCookie(string name, string[] patterns, MatchBehaviour matchBehaviour)
+    {
+        return WithCookie(name, patterns, true, matchBehaviour);
+    }
 
-        /// <inheritdoc cref="ICookiesRequestBuilder.WithCookie(string, string[], bool, MatchBehaviour)"/>
-        public IRequestBuilder WithCookie(string name, string[] patterns, bool ignoreCase = true, MatchBehaviour matchBehaviour = MatchBehaviour.AcceptOnMatch)
-        {
-            Guard.NotNull(name, nameof(name));
-            Guard.NotNull(patterns, nameof(patterns));
+    /// <inheritdoc cref="ICookiesRequestBuilder.WithCookie(string, string[], bool, MatchBehaviour)"/>
+    public IRequestBuilder WithCookie(string name, string[] patterns, bool ignoreCase = true, MatchBehaviour matchBehaviour = MatchBehaviour.AcceptOnMatch)
+    {
+        Guard.NotNull(name, nameof(name));
+        Guard.NotNull(patterns, nameof(patterns));
 
-            _requestMatchers.Add(new RequestMessageCookieMatcher(matchBehaviour, name, ignoreCase, patterns));
-            return this;
-        }
+        _requestMatchers.Add(new RequestMessageCookieMatcher(matchBehaviour, name, ignoreCase, patterns));
+        return this;
+    }
 
-        /// <inheritdoc cref="ICookiesRequestBuilder.WithCookie(string, IStringMatcher[])"/>
-        public IRequestBuilder WithCookie(string name, params IStringMatcher[] matchers)
-        {
-            Guard.NotNull(name, nameof(name));
-            Guard.NotNullOrEmpty(matchers, nameof(matchers));
+    /// <inheritdoc cref="ICookiesRequestBuilder.WithCookie(string, IStringMatcher[])"/>
+    public IRequestBuilder WithCookie(string name, params IStringMatcher[] matchers)
+    {
+        Guard.NotNull(name, nameof(name));
+        Guard.NotNullOrEmpty(matchers, nameof(matchers));
 
-            _requestMatchers.Add(new RequestMessageCookieMatcher(MatchBehaviour.AcceptOnMatch, name, false, matchers));
-            return this;
-        }
+        _requestMatchers.Add(new RequestMessageCookieMatcher(MatchBehaviour.AcceptOnMatch, name, false, matchers));
+        return this;
+    }
 
-        /// <inheritdoc cref="ICookiesRequestBuilder.WithCookie(string, bool, IStringMatcher[])"/>
-        public IRequestBuilder WithCookie(string name, bool ignoreCase, params IStringMatcher[] matchers)
-        {
-            Guard.NotNull(name, nameof(name));
-            Guard.NotNullOrEmpty(matchers, nameof(matchers));
+    /// <inheritdoc cref="ICookiesRequestBuilder.WithCookie(string, bool, IStringMatcher[])"/>
+    public IRequestBuilder WithCookie(string name, bool ignoreCase, params IStringMatcher[] matchers)
+    {
+        Guard.NotNull(name, nameof(name));
+        Guard.NotNullOrEmpty(matchers, nameof(matchers));
 
-            _requestMatchers.Add(new RequestMessageCookieMatcher(MatchBehaviour.AcceptOnMatch, name, ignoreCase, matchers));
-            return this;
-        }
+        _requestMatchers.Add(new RequestMessageCookieMatcher(MatchBehaviour.AcceptOnMatch, name, ignoreCase, matchers));
+        return this;
+    }
 
-        /// <inheritdoc cref="ICookiesRequestBuilder.WithCookie(string, IStringMatcher[])"/>
-        public IRequestBuilder WithCookie(string name, bool ignoreCase, MatchBehaviour matchBehaviour, params IStringMatcher[] matchers)
-        {
-            Guard.NotNull(name, nameof(name));
-            Guard.NotNullOrEmpty(matchers, nameof(matchers));
+    /// <inheritdoc cref="ICookiesRequestBuilder.WithCookie(string, IStringMatcher[])"/>
+    public IRequestBuilder WithCookie(string name, bool ignoreCase, MatchBehaviour matchBehaviour, params IStringMatcher[] matchers)
+    {
+        Guard.NotNull(name, nameof(name));
+        Guard.NotNullOrEmpty(matchers, nameof(matchers));
 
-            _requestMatchers.Add(new RequestMessageCookieMatcher(matchBehaviour, name, ignoreCase, matchers));
-            return this;
-        }
+        _requestMatchers.Add(new RequestMessageCookieMatcher(matchBehaviour, name, ignoreCase, matchers));
+        return this;
+    }
 
-        /// <inheritdoc cref="ICookiesRequestBuilder.WithCookie(Func{IDictionary{string, string}, bool}[])"/>
-        public IRequestBuilder WithCookie(params Func<IDictionary<string, string>, bool>[] funcs)
-        {
-            Guard.NotNullOrEmpty(funcs, nameof(funcs));
+    /// <inheritdoc cref="ICookiesRequestBuilder.WithCookie(Func{IDictionary{string, string}, bool}[])"/>
+    public IRequestBuilder WithCookie(params Func<IDictionary<string, string>, bool>[] funcs)
+    {
+        Guard.NotNullOrEmpty(funcs, nameof(funcs));
 
-            _requestMatchers.Add(new RequestMessageCookieMatcher(funcs));
-            return this;
-        }
+        _requestMatchers.Add(new RequestMessageCookieMatcher(funcs));
+        return this;
     }
 }

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

@@ -7,86 +7,85 @@ using WireMock.Matchers.Request;
 using WireMock.Types;
 using Stef.Validation;
 
-namespace WireMock.RequestBuilders
+namespace WireMock.RequestBuilders;
+
+public partial class Request
 {
-    public partial class Request
+    /// <inheritdoc cref="IParamsRequestBuilder.WithParam(string, MatchBehaviour)"/>
+    public IRequestBuilder WithParam(string key, MatchBehaviour matchBehaviour = MatchBehaviour.AcceptOnMatch)
     {
-        /// <inheritdoc cref="IParamsRequestBuilder.WithParam(string, MatchBehaviour)"/>
-        public IRequestBuilder WithParam(string key, MatchBehaviour matchBehaviour = MatchBehaviour.AcceptOnMatch)
-        {
-            return WithParam(key, false, matchBehaviour);
-        }
+        return WithParam(key, false, matchBehaviour);
+    }
 
-        /// <inheritdoc cref="IParamsRequestBuilder.WithParam(string, bool, MatchBehaviour)"/>
-        public IRequestBuilder WithParam(string key, bool ignoreCase, MatchBehaviour matchBehaviour = MatchBehaviour.AcceptOnMatch)
-        {
-            Guard.NotNull(key);
+    /// <inheritdoc cref="IParamsRequestBuilder.WithParam(string, bool, MatchBehaviour)"/>
+    public IRequestBuilder WithParam(string key, bool ignoreCase, MatchBehaviour matchBehaviour = MatchBehaviour.AcceptOnMatch)
+    {
+        Guard.NotNull(key);
 
-            _requestMatchers.Add(new RequestMessageParamMatcher(matchBehaviour, key, ignoreCase));
-            return this;
-        }
+        _requestMatchers.Add(new RequestMessageParamMatcher(matchBehaviour, key, ignoreCase));
+        return this;
+    }
 
-        /// <inheritdoc cref="IParamsRequestBuilder.WithParam(string, string[])"/>
-        public IRequestBuilder WithParam(string key, params string[] values)
-        {
-            return WithParam(key, MatchBehaviour.AcceptOnMatch, false, values);
-        }
+    /// <inheritdoc cref="IParamsRequestBuilder.WithParam(string, string[])"/>
+    public IRequestBuilder WithParam(string key, params string[] values)
+    {
+        return WithParam(key, MatchBehaviour.AcceptOnMatch, false, values);
+    }
 
-        /// <inheritdoc cref="IParamsRequestBuilder.WithParam(string, bool, string[])"/>
-        public IRequestBuilder WithParam(string key, bool ignoreCase, params string[] values)
-        {
-            return WithParam(key, MatchBehaviour.AcceptOnMatch, ignoreCase, values);
-        }
+    /// <inheritdoc cref="IParamsRequestBuilder.WithParam(string, bool, string[])"/>
+    public IRequestBuilder WithParam(string key, bool ignoreCase, params string[] values)
+    {
+        return WithParam(key, MatchBehaviour.AcceptOnMatch, ignoreCase, values);
+    }
 
-        /// <inheritdoc cref="IParamsRequestBuilder.WithParam(string, IStringMatcher[])"/>
-        public IRequestBuilder WithParam(string key, params IStringMatcher[] matchers)
-        {
-            return WithParam(key, MatchBehaviour.AcceptOnMatch, false, matchers);
-        }
+    /// <inheritdoc cref="IParamsRequestBuilder.WithParam(string, IStringMatcher[])"/>
+    public IRequestBuilder WithParam(string key, params IStringMatcher[] matchers)
+    {
+        return WithParam(key, MatchBehaviour.AcceptOnMatch, false, matchers);
+    }
 
-        /// <inheritdoc cref="IParamsRequestBuilder.WithParam(string, bool, IStringMatcher[])"/>
-        public IRequestBuilder WithParam(string key, bool ignoreCase, params IStringMatcher[] matchers)
-        {
-            return WithParam(key, MatchBehaviour.AcceptOnMatch, ignoreCase, matchers);
-        }
+    /// <inheritdoc cref="IParamsRequestBuilder.WithParam(string, bool, IStringMatcher[])"/>
+    public IRequestBuilder WithParam(string key, bool ignoreCase, params IStringMatcher[] matchers)
+    {
+        return WithParam(key, MatchBehaviour.AcceptOnMatch, ignoreCase, matchers);
+    }
 
-        /// <inheritdoc cref="IParamsRequestBuilder.WithParam(string, MatchBehaviour, string[])"/>
-        public IRequestBuilder WithParam(string key, MatchBehaviour matchBehaviour, params string[] values)
-        {
-            return WithParam(key, matchBehaviour, false, values);
-        }
+    /// <inheritdoc cref="IParamsRequestBuilder.WithParam(string, MatchBehaviour, string[])"/>
+    public IRequestBuilder WithParam(string key, MatchBehaviour matchBehaviour, params string[] values)
+    {
+        return WithParam(key, matchBehaviour, false, values);
+    }
 
-        /// <inheritdoc cref="IParamsRequestBuilder.WithParam(string, MatchBehaviour, bool, string[])"/>
-        public IRequestBuilder WithParam(string key, MatchBehaviour matchBehaviour, bool ignoreCase = false, params string[] values)
-        {
-            Guard.NotNull(key);
+    /// <inheritdoc cref="IParamsRequestBuilder.WithParam(string, MatchBehaviour, bool, string[])"/>
+    public IRequestBuilder WithParam(string key, MatchBehaviour matchBehaviour, bool ignoreCase = false, params string[] values)
+    {
+        Guard.NotNull(key);
 
-            _requestMatchers.Add(new RequestMessageParamMatcher(matchBehaviour, key, ignoreCase, values));
-            return this;
-        }
+        _requestMatchers.Add(new RequestMessageParamMatcher(matchBehaviour, key, ignoreCase, values));
+        return this;
+    }
 
-        /// <inheritdoc cref="IParamsRequestBuilder.WithParam(string, MatchBehaviour, IStringMatcher[])"/>
-        public IRequestBuilder WithParam(string key, MatchBehaviour matchBehaviour, params IStringMatcher[] matchers)
-        {
-            return WithParam(key, matchBehaviour, false, matchers);
-        }
+    /// <inheritdoc cref="IParamsRequestBuilder.WithParam(string, MatchBehaviour, IStringMatcher[])"/>
+    public IRequestBuilder WithParam(string key, MatchBehaviour matchBehaviour, params IStringMatcher[] matchers)
+    {
+        return WithParam(key, matchBehaviour, false, matchers);
+    }
 
-        /// <inheritdoc cref="IParamsRequestBuilder.WithParam(string, MatchBehaviour, bool, IStringMatcher[])"/>
-        public IRequestBuilder WithParam(string key, MatchBehaviour matchBehaviour, bool ignoreCase, params IStringMatcher[] matchers)
-        {
-            Guard.NotNull(key);
+    /// <inheritdoc cref="IParamsRequestBuilder.WithParam(string, MatchBehaviour, bool, IStringMatcher[])"/>
+    public IRequestBuilder WithParam(string key, MatchBehaviour matchBehaviour, bool ignoreCase, params IStringMatcher[] matchers)
+    {
+        Guard.NotNull(key);
 
-            _requestMatchers.Add(new RequestMessageParamMatcher(matchBehaviour, key, ignoreCase, matchers));
-            return this;
-        }
+        _requestMatchers.Add(new RequestMessageParamMatcher(matchBehaviour, key, ignoreCase, matchers));
+        return this;
+    }
 
-        /// <inheritdoc cref="IParamsRequestBuilder.WithParam(Func{IDictionary{string, WireMockList{string}}, bool}[])"/>
-        public IRequestBuilder WithParam(params Func<IDictionary<string, WireMockList<string>>, bool>[] funcs)
-        {
-            Guard.NotNullOrEmpty(funcs, nameof(funcs));
+    /// <inheritdoc cref="IParamsRequestBuilder.WithParam(Func{IDictionary{string, WireMockList{string}}, bool}[])"/>
+    public IRequestBuilder WithParam(params Func<IDictionary<string, WireMockList<string>>, bool>[] funcs)
+    {
+        Guard.NotNullOrEmpty(funcs, nameof(funcs));
 
-            _requestMatchers.Add(new RequestMessageParamMatcher(funcs));
-            return this;
-        }
+        _requestMatchers.Add(new RequestMessageParamMatcher(funcs));
+        return this;
     }
 }

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

@@ -3,47 +3,46 @@ using Stef.Validation;
 using WireMock.Matchers;
 using WireMock.Matchers.Request;
 
-namespace WireMock.RequestBuilders
+namespace WireMock.RequestBuilders;
+
+public partial class Request
 {
-    public partial class Request
+    /// <inheritdoc />
+    public IRequestBuilder WithUrl(params IStringMatcher[] matchers)
     {
-        /// <inheritdoc />
-        public IRequestBuilder WithUrl(params IStringMatcher[] matchers)
-        {
-            return WithUrl(MatchOperator.Or, matchers);
-        }
-
-        /// <inheritdoc />
-        public IRequestBuilder WithUrl(MatchOperator matchOperator, params IStringMatcher[] matchers)
-        {
-            Guard.NotNullOrEmpty(matchers);
-
-            _requestMatchers.Add(new RequestMessageUrlMatcher(MatchBehaviour.AcceptOnMatch, matchOperator, matchers));
-            return this;
-        }
-
-        /// <inheritdoc />
-        public IRequestBuilder WithUrl(params string[] urls)
-        {
-            return WithUrl(MatchOperator.Or, urls);
-        }
-
-        /// <inheritdoc />
-        public IRequestBuilder WithUrl(MatchOperator matchOperator, params string[] urls)
-        {
-            Guard.NotNullOrEmpty(urls);
-
-            _requestMatchers.Add(new RequestMessageUrlMatcher(MatchBehaviour.AcceptOnMatch, matchOperator, urls));
-            return this;
-        }
-
-        /// <inheritdoc cref="IUrlAndPathRequestBuilder.WithUrl(Func{string, bool}[])"/>
-        public IRequestBuilder WithUrl(params Func<string, bool>[] funcs)
-        {
-            Guard.NotNullOrEmpty(funcs);
-
-            _requestMatchers.Add(new RequestMessageUrlMatcher(funcs));
-            return this;
-        }
+        return WithUrl(MatchOperator.Or, matchers);
     }
-}
+
+    /// <inheritdoc />
+    public IRequestBuilder WithUrl(MatchOperator matchOperator, params IStringMatcher[] matchers)
+    {
+        Guard.NotNullOrEmpty(matchers);
+
+        _requestMatchers.Add(new RequestMessageUrlMatcher(MatchBehaviour.AcceptOnMatch, matchOperator, matchers));
+        return this;
+    }
+
+    /// <inheritdoc />
+    public IRequestBuilder WithUrl(params string[] urls)
+    {
+        return WithUrl(MatchOperator.Or, urls);
+    }
+
+    /// <inheritdoc />
+    public IRequestBuilder WithUrl(MatchOperator matchOperator, params string[] urls)
+    {
+        Guard.NotNullOrEmpty(urls);
+
+        _requestMatchers.Add(new RequestMessageUrlMatcher(MatchBehaviour.AcceptOnMatch, matchOperator, urls));
+        return this;
+    }
+
+    /// <inheritdoc cref="IUrlAndPathRequestBuilder.WithUrl(Func{string, bool}[])"/>
+    public IRequestBuilder WithUrl(params Func<string, bool>[] funcs)
+    {
+        Guard.NotNullOrEmpty(funcs);
+
+        _requestMatchers.Add(new RequestMessageUrlMatcher(funcs));
+        return this;
+    }
+}

src/WireMock.Net/RequestBuilders/Request.cs

@@ -63,5 +63,4 @@ public partial class Request : RequestMessageCompositeMatcher, IRequestBuilder
     {
         return _requestMatchers.OfType<T>().FirstOrDefault(func);
     }
-  
 }

src/WireMock.Net/Serialization/MappingConverter.cs

@@ -1,8 +1,11 @@
 using System;
 using System.Collections.Generic;
 using System.Linq;
+using System.Net;
 using System.Text;
 using System.Threading;
+using Newtonsoft.Json;
+using Newtonsoft.Json.Linq;
 using Stef.Validation;
 using WireMock.Admin.Mappings;
 using WireMock.Constants;
@@ -14,6 +17,7 @@ using WireMock.RequestBuilders;
 using WireMock.ResponseBuilders;
 using WireMock.Settings;
 using WireMock.Types;
+using WireMock.Util;
 
 namespace WireMock.Serialization;
 
@@ -33,7 +37,7 @@ internal class MappingConverter
         settings ??= new MappingConverterSettings();
 
         var request = (Request)mapping.RequestMatcher;
-        var response = (Response) mapping.Provider;
+        var response = (Response)mapping.Provider;
 
         var clientIPMatcher = request.GetRequestMessageMatcher<RequestMessageClientIPMatcher>();
         var pathMatcher = request.GetRequestMessageMatcher<RequestMessagePathMatcher>();
@@ -115,24 +119,51 @@ internal class MappingConverter
         // Guid
         sb.AppendLine($"    .WithGuid(\"{mapping.Guid}\")");
 
+        if (mapping.Probability != null)
+        {
+            sb.AppendLine($"    .WithProbability({mapping.Probability.Value.ToString(CultureInfoUtils.CultureInfoEnUS)})");
+        }
+
         // Response
         sb.AppendLine("    .RespondWith(Response.Create()");
 
+        if (response.ResponseMessage.StatusCode is int or string)
+        {
+            sb.AppendLine($"        .WithStatusCode({JsonConvert.SerializeObject(response.ResponseMessage.StatusCode)})");
+        }
+        else if (response.ResponseMessage.StatusCode is HttpStatusCode httpStatusCode)
+        {
+            sb.AppendLine($"        .WithStatusCode({(int)httpStatusCode})");
+        }
+
         if (response.ResponseMessage.Headers is { })
         {
             foreach (var header in response.ResponseMessage.Headers)
             {
-                sb.AppendLine($"        .WithHeader(\"{header.Key})\", {ToValueArguments(header.Value.ToArray())})");
+                sb.AppendLine($"        .WithHeader(\"{header.Key}\", {ToValueArguments(header.Value.ToArray())})");
             }
         }
 
-        if (response.ResponseMessage.BodyData is { })
+        if (response.ResponseMessage.BodyData is { } bodyData)
         {
             switch (response.ResponseMessage.BodyData.DetectedBodyType)
             {
                 case BodyType.String:
                 case BodyType.FormUrlEncoded:
-                    sb.AppendLine($"        .WithBody(\"{response.ResponseMessage.BodyData.BodyAsString}\")");
+                    sb.AppendLine($"        .WithBody(\"{EscapeCSharpString(bodyData.BodyAsString)}\")");
+                    break;
+                case BodyType.Json:
+                    if (bodyData.BodyAsJson is string bodyStringValue)
+                    {
+                        sb.AppendLine($"        .WithBody(\"{EscapeCSharpString(bodyStringValue)}\")");
+                    }
+                    else
+                    {
+                        var serializedBody = JsonConvert.SerializeObject(bodyData.BodyAsJson);
+                        var deserializedBody = JToken.Parse(serializedBody);
+                        sb.AppendLine($"        .WithBodyAsJson({ConvertJsonToAnonymousObjectDefinition(deserializedBody, 2)})");
+                    }
+
                     break;
             }
         }
@@ -183,6 +214,7 @@ internal class MappingConverter
             WhenStateIs = mapping.ExecutionConditionState,
             SetStateTo = mapping.NextState,
             Data = mapping.Data,
+            Probability = mapping.Probability,
             Request = new RequestModel
             {
                 Headers = headerMatchers.Any() ? headerMatchers.Select(hm => new HeaderModel
@@ -427,9 +459,11 @@ internal class MappingConverter
 
     private static string ToValueArguments(string[]? values, string defaultValue = "")
     {
-        return values is { } ? string.Join(", ", values.Select(v => $"\"{v}\"")) : $"\"{defaultValue}\"";
+        return values is { } ? string.Join(", ", values.Select(v => $"\"{EscapeCSharpString(v)}\"")) : $"\"{EscapeCSharpString(defaultValue)}\"";
     }
 
+    private static string? EscapeCSharpString(string? value) => value?.Replace("\"", "\\\"");
+
     private static WebProxyModel? MapWebProxy(WebProxySettings? settings)
     {
         return settings != null ? new WebProxyModel
@@ -458,4 +492,49 @@ internal class MappingConverter
 
         return newDictionary;
     }
+
+    private static string ConvertJsonToAnonymousObjectDefinition(JToken token, int ind = 0)
+    {
+        return token switch
+        {
+            JArray jArray => FormatArray(jArray, ind),
+            JObject jObject => FormatObject(jObject, ind),
+            JProperty jProperty => $"{jProperty.Name} = {ConvertJsonToAnonymousObjectDefinition(jProperty.Value, ind)}",
+            JValue jValue => jValue.Type switch
+            {
+                JTokenType.None => "null",
+                JTokenType.Integer => jValue.Value?.ToString() ?? "null",
+                JTokenType.Float => jValue.Value?.ToString() ?? "null",
+                JTokenType.String => $"\"{EscapeCSharpString(jValue.Value?.ToString())}\"",
+                JTokenType.Boolean => jValue.Value?.ToString()?.ToLower() ?? "null",
+                JTokenType.Null => "null",
+                JTokenType.Undefined => "null",
+                _ => $"UNHANDLED_CASE: {jValue.Type}"
+            },
+            _ => $"UNHANDLED_CASE: {token}"
+        };
+    }
+
+    private static string FormatObject(JObject jObject, int ind)
+    {
+        var indStr = new string(' ', 4 * ind);
+        var indStrSub = new string(' ', 4 * (ind + 1));
+        var items = jObject.Properties().Select(x => ConvertJsonToAnonymousObjectDefinition(x, ind + 1));
+
+        return $"new\r\n{indStr}{{\r\n{indStrSub}{string.Join($",\r\n{indStrSub}", items)}\r\n{indStr}}}";
+    }
+
+    private static string FormatArray(JArray jArray, int ind)
+    {
+        var hasComplexItems = jArray.FirstOrDefault() is JObject or JArray;
+        var items = jArray.Select(x => ConvertJsonToAnonymousObjectDefinition(x, hasComplexItems ? ind + 1 : ind));
+        if (hasComplexItems)
+        {
+            var indStr = new string(' ', 4 * ind);
+            var indStrSub = new string(' ', 4 * (ind + 1));
+            return $"new []\r\n{indStr}{{\r\n{indStrSub}{string.Join($",\r\n{indStrSub}", items)}\r\n{indStr}}}";
+        }
+
+        return $"new [] {{ {string.Join(", ", items)} }}";
+    }
 }

src/WireMock.Net/Serialization/ProxyMappingConverter.cs

@@ -189,7 +189,8 @@ internal class ProxyMappingConverter
             webhooks: null,
             useWebhooksFireAndForget: null,
             timeSettings: null,
-            data: mapping?.Data
+            data: mapping?.Data,
+            probability: null
         );
     }
 }

src/WireMock.Net/Server/IRespondWithAProvider.cs

@@ -175,5 +175,13 @@ public interface IRespondWithAProvider
     /// lookup data "1"
     /// </example>
     /// </summary>
+    /// <returns>The <see cref="IRespondWithAProvider"/>.</returns>
     IRespondWithAProvider WithData(object data);
+
+    /// <summary>
+    /// Define the probability when this request should be matched. Value is between 0 and 1.
+    /// </summary>
+    /// <param name="probability">The probability when this request should be matched. Value is between 0 and 1.</param>
+    /// <returns>The <see cref="IRespondWithAProvider"/>.</returns>
+    IRespondWithAProvider WithProbability(double probability);
 }

src/WireMock.Net/Server/RespondWithAProvider.cs

@@ -18,6 +18,12 @@ namespace WireMock.Server;
 /// </summary>
 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 int _priority;
     private string? _title;
     private string? _description;
@@ -26,13 +32,8 @@ internal class RespondWithAProvider : IRespondWithAProvider
     private string? _nextState;
     private string? _scenario;
     private int _timesInSameState = 1;
-    private readonly RegistrationCallback _registrationCallback;
-    private readonly IRequestMatcher _requestMatcher;
-    private readonly WireMockServerSettings _settings;
-    private readonly IDateTimeUtils _dateTimeUtils;
-    private readonly bool _saveToFile;
-
     private bool? _useWebhookFireAndForget;
+    private double? _probability;
 
     public Guid Guid { get; private set; }
 
@@ -92,7 +93,8 @@ internal class RespondWithAProvider : IRespondWithAProvider
             Webhooks,
             _useWebhookFireAndForget,
             TimeSettings,
-            Data);
+            Data,
+            _probability);
 
         _registrationCallback(mapping, _saveToFile);
     }
@@ -285,6 +287,13 @@ internal class RespondWithAProvider : IRespondWithAProvider
         return this;
     }
 
+    public IRespondWithAProvider WithProbability(double probability)
+    {
+        _probability = Guard.Condition(probability, p => p is >= 0 and <= 1.0);
+
+        return this;
+    }
+
     private static IWebhook InitWebhook(
         string url,
         string method,

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

@@ -113,6 +113,11 @@ public partial class WireMockServer
             respondProvider.WithWebhookFireAndForget(mappingModel.UseWebhooksFireAndForget.Value);
         }
 
+        if (mappingModel.Probability != null)
+        {
+            respondProvider.WithProbability(mappingModel.Probability.Value);
+        }
+
         var responseBuilder = InitResponseBuilder(mappingModel.Response);
         respondProvider.RespondWith(responseBuilder);
 

src/WireMock.Net/Server/WireMockServer.cs

@@ -43,10 +43,14 @@ public partial class WireMockServer : IWireMockServer
     private readonly IGuidUtils _guidUtils = new GuidUtils();
     private readonly IDateTimeUtils _dateTimeUtils = new DateTimeUtils();
 
-    /// <inheritdoc cref="IWireMockServer.IsStarted" />
+    /// <inheritdoc />
     [PublicAPI]
     public bool IsStarted => _httpServer is { IsStarted: true };
 
+    /// <inheritdoc />
+    [PublicAPI]
+    public bool IsStartedWithAdminInterface => IsStarted && _settings.StartAdminInterface.GetValueOrDefault();
+
     /// <inheritdoc />
     [PublicAPI]
     public List<int> Ports { get; }

src/WireMock.Net/Services/IRandomizerDoubleBetween0And1.cs

@@ -0,0 +1,6 @@
+namespace WireMock.Services;
+
+internal interface IRandomizerDoubleBetween0And1
+{
+    double Generate();
+}

src/WireMock.Net/Services/RandomizerDoubleBetween0And1.cs

@@ -0,0 +1,14 @@
+using RandomDataGenerator.FieldOptions;
+using RandomDataGenerator.Randomizers;
+
+namespace WireMock.Services;
+
+internal class RandomizerDoubleBetween0And1 : IRandomizerDoubleBetween0And1
+{
+    private readonly IRandomizerNumber<double> _randomizerDoubleBetween0And1 = RandomizerFactory.GetRandomizer(new FieldOptionsDouble { Min = 0, Max = 1 });
+
+    public double Generate()
+    {
+        return _randomizerDoubleBetween0And1.Generate() ?? 0;
+    }
+}

src/WireMock.Net/Settings/ProxyAndRecordSettings.cs

@@ -1,91 +1,97 @@
-using JetBrains.Annotations;
-
-namespace WireMock.Settings;
-
-/// <summary>
-/// ProxyAndRecordSettings
-/// </summary>
-public class ProxyAndRecordSettings : HttpClientSettings
-{
-    /// <summary>
-    /// The URL to proxy.
-    /// </summary>
-    [PublicAPI]
-    public string Url { get; set; } = null!;
-
-    /// <summary>
-    /// Save the mapping for each request/response to the internal Mappings.
-    /// </summary>
-    [PublicAPI]
-    public bool SaveMapping { get; set; }
-
-    /// <summary>
-    /// Save the mapping for each request/response also to a file. (Note that SaveMapping must also be set to true.)
-    /// </summary>
-    [PublicAPI]
-    public bool SaveMappingToFile { get; set; }
-
-    /// <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
-    {
-        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.
-    /// </summary>
-    [PublicAPI]
-    public string[]? ExcludedHeaders { get; set; }
-
-    /// <summary>
-    /// Defines a list of params which will be excluded from the saved mappings.
-    /// </summary>
-    [PublicAPI]
-    public string[]? ExcludedParams { get; set; }
-
-    /// <summary>
-    /// Defines a list of cookies which will be excluded from the saved mappings.
-    /// </summary>
-    [PublicAPI]
-    public string[]? ExcludedCookies { get; set; }
-
-    /// <summary>
-    /// Prefer the Proxy Mapping over the saved Mapping (in case SaveMapping is set to <c>true</c>).
-    /// </summary>
-    //[PublicAPI]
-    //public bool PreferProxyMapping { get; set; }
-
-    /// <summary>
-    /// When SaveMapping is set to <c>true</c>, this setting can be used to control the behavior of the generated request matchers for the new mapping.
-    /// - <c>false</c>, the default matchers will be used.
-    /// - <c>true</c>, the defined mappings in the request wil be used for the new mapping.
-    ///
-    /// Default value is false.
-    /// </summary>
-    public bool UseDefinedRequestMatchers { get; set; }
-
-    /// <summary>
-    /// Append an unique GUID to the filename from the saved mapping file.
-    /// </summary>
-    public bool AppendGuidToSavedMappingFile { get; set; }
+using JetBrains.Annotations;
+
+namespace WireMock.Settings;
+
+/// <summary>
+/// ProxyAndRecordSettings
+/// </summary>
+public class ProxyAndRecordSettings : HttpClientSettings
+{
+    /// <summary>
+    /// The URL to proxy.
+    /// </summary>
+    [PublicAPI]
+    public string Url { get; set; } = null!;
+
+    /// <summary>
+    /// Save the mapping for each request/response to the internal Mappings.
+    /// </summary>
+    [PublicAPI]
+    public bool SaveMapping { get; set; }
+
+    /// <summary>
+    /// Save the mapping for each request/response also to a file. (Note that SaveMapping must also be set to true.)
+    /// </summary>
+    [PublicAPI]
+    public bool SaveMappingToFile { get; set; }
+
+    /// <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
+    {
+        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.
+    /// </summary>
+    [PublicAPI]
+    public string[]? ExcludedHeaders { get; set; }
+
+    /// <summary>
+    /// Defines a list of params which will be excluded from the saved mappings.
+    /// </summary>
+    [PublicAPI]
+    public string[]? ExcludedParams { get; set; }
+
+    /// <summary>
+    /// Defines a list of cookies which will be excluded from the saved mappings.
+    /// </summary>
+    [PublicAPI]
+    public string[]? ExcludedCookies { get; set; }
+
+    /// <summary>
+    /// Replace Settings
+    /// </summary>
+    [PublicAPI]
+    public ProxyUrlReplaceSettings? ReplaceSettings { get; set; }
+
+    /// <summary>
+    /// Prefer the Proxy Mapping over the saved Mapping (in case SaveMapping is set to <c>true</c>).
+    /// </summary>
+    //[PublicAPI]
+    //public bool PreferProxyMapping { get; set; }
+
+    /// <summary>
+    /// When SaveMapping is set to <c>true</c>, this setting can be used to control the behavior of the generated request matchers for the new mapping.
+    /// - <c>false</c>, the default matchers will be used.
+    /// - <c>true</c>, the defined mappings in the request wil be used for the new mapping.
+    ///
+    /// Default value is false.
+    /// </summary>
+    public bool UseDefinedRequestMatchers { get; set; }
+
+    /// <summary>
+    /// Append an unique GUID to the filename from the saved mapping file.
+    /// </summary>
+    public bool AppendGuidToSavedMappingFile { get; set; }
 }

src/WireMock.Net/Settings/ProxyUrlReplaceSettings.cs

@@ -0,0 +1,22 @@
+namespace WireMock.Settings;
+
+/// <summary>
+/// Defines an old path param and a new path param to be replaced when proxying.
+/// </summary>
+public class ProxyUrlReplaceSettings
+{
+    /// <summary>
+    /// The old path value to be replaced by the new path value
+    /// </summary>
+    public string OldValue { get; set; } = null!;
+
+    /// <summary>
+    /// The new path value to replace the old value with
+    /// </summary>
+    public string NewValue { get; set; } = null!;
+
+    /// <summary>
+    /// Defines if the case should be ignore when replacing.
+    /// </summary>
+    public bool IgnoreCase { get; set; }
+}

src/WireMock.Net/Settings/WireMockServerSettingsParser.cs

@@ -21,7 +21,8 @@ public static class WireMockServerSettingsParser
     /// <param name="logger">The logger (optional, can be null)</param>
     /// <param name="settings">The parsed settings</param>
     [PublicAPI]
-    public static bool TryParseArguments(string[] args, [NotNullWhen(true)] out WireMockServerSettings? settings, IWireMockLogger? logger = null)
+    public static bool TryParseArguments(string[] args, [NotNullWhen(true)] out WireMockServerSettings? settings,
+        IWireMockLogger? logger = null)
     {
         Guard.HasNoNulls(args);
 
@@ -70,6 +71,17 @@ public static class WireMockServerSettingsParser
         settings.AcceptAnyClientCertificate = parser.GetBoolValue(nameof(WireMockServerSettings.AcceptAnyClientCertificate));
 #endif
 
+        ParseLoggerSettings(settings, logger, parser);
+        ParsePortSettings(settings, parser);
+        ParseProxyAndRecordSettings(settings, parser);
+        ParseCertificateSettings(settings, parser);
+
+        return true;
+    }
+
+    private static void ParseLoggerSettings(WireMockServerSettings settings, IWireMockLogger? logger,
+        SimpleCommandLineParser parser)
+    {
         var loggerType = parser.GetStringValue("WireMockLogger");
         switch (loggerType)
         {
@@ -86,22 +98,17 @@ public static class WireMockServerSettingsParser
                 {
                     settings.Logger = logger;
                 }
+
                 break;
         }
+    }
 
-        if (parser.Contains(nameof(WireMockServerSettings.Port)))
-        {
-            settings.Port = parser.GetIntValue(nameof(WireMockServerSettings.Port));
-        }
-        else if (settings.HostingScheme is null)
-        {
-            settings.Urls = parser.GetValues("Urls", new[] { "http://*:9091/" });
-        }
-
+    private static void ParseProxyAndRecordSettings(WireMockServerSettings settings, SimpleCommandLineParser parser)
+    {
         var proxyUrl = parser.GetStringValue("ProxyURL") ?? parser.GetStringValue("ProxyUrl");
         if (!string.IsNullOrEmpty(proxyUrl))
         {
-            settings.ProxyAndRecordSettings = new ProxyAndRecordSettings
+            var proxyAndRecordSettings = new ProxyAndRecordSettings
             {
                 AllowAutoRedirect = parser.GetBoolValue("AllowAutoRedirect"),
                 ClientX509Certificate2ThumbprintOrSubjectName = parser.GetStringValue("ClientX509Certificate2ThumbprintOrSubjectName"),
@@ -121,18 +128,27 @@ public static class WireMockServerSettingsParser
                 }
             };
 
-            string? proxyAddress = parser.GetStringValue("WebProxyAddress");
-            if (!string.IsNullOrEmpty(proxyAddress))
-            {
-                settings.ProxyAndRecordSettings.WebProxySettings = new WebProxySettings
-                {
-                    Address = proxyAddress!,
-                    UserName = parser.GetStringValue("WebProxyUserName"),
-                    Password = parser.GetStringValue("WebProxyPassword")
-                };
-            }
-        }
+            ParseWebProxyAddressSettings(proxyAndRecordSettings, parser);
+            ParseProxyUrlReplaceSettings(proxyAndRecordSettings, parser);
 
+            settings.ProxyAndRecordSettings = proxyAndRecordSettings;
+        }
+    }
+
+    private static void ParsePortSettings(WireMockServerSettings settings, SimpleCommandLineParser parser)
+    {
+        if (parser.Contains(nameof(WireMockServerSettings.Port)))
+        {
+            settings.Port = parser.GetIntValue(nameof(WireMockServerSettings.Port));
+        }
+        else if (settings.HostingScheme is null)
+        {
+            settings.Urls = parser.GetValues("Urls", new[] { "http://*:9091/" });
+        }
+    }
+
+    private static void ParseCertificateSettings(WireMockServerSettings settings, SimpleCommandLineParser parser)
+    {
         var certificateSettings = new WireMockCertificateSettings
         {
             X509StoreName = parser.GetStringValue("X509StoreName"),
@@ -145,7 +161,33 @@ public static class WireMockServerSettingsParser
         {
             settings.CertificateSettings = certificateSettings;
         }
+    }
 
-        return true;
+    private static void ParseWebProxyAddressSettings(ProxyAndRecordSettings settings, SimpleCommandLineParser parser)
+    {
+        string? proxyAddress = parser.GetStringValue("WebProxyAddress");
+        if (!string.IsNullOrEmpty(proxyAddress))
+        {
+            settings.WebProxySettings = new WebProxySettings
+            {
+                Address = proxyAddress!,
+                UserName = parser.GetStringValue("WebProxyUserName"),
+                Password = parser.GetStringValue("WebProxyPassword")
+            };
+        }
+    }
+
+    private static void ParseProxyUrlReplaceSettings(ProxyAndRecordSettings settings, SimpleCommandLineParser parser)
+    {
+        var proxyUrlReplaceOldValue = parser.GetStringValue("ProxyUrlReplaceOldValue");
+        var proxyUrlReplaceNewValue = parser.GetStringValue("ProxyUrlReplaceNewValue");
+        if (!string.IsNullOrEmpty(proxyUrlReplaceOldValue) && proxyUrlReplaceNewValue != null)
+        {
+            settings.ReplaceSettings = new ProxyUrlReplaceSettings
+            {
+                OldValue = proxyUrlReplaceOldValue!,
+                NewValue = proxyUrlReplaceNewValue!
+            };
+        }
     }
 }

src/WireMock.Net/Util/CultureInfoExtensions.cs

@@ -5,6 +5,8 @@ namespace WireMock.Util;
 
 internal static class CultureInfoUtils
 {
+    public static readonly CultureInfo CultureInfoEnUS = new("en-US");
+
     public static CultureInfo Parse(string? value)
     {
         if (value is null)

src/WireMock.Net/Util/TinyMapperUtils.cs

@@ -1,29 +1,31 @@
-using Nelibur.ObjectMapper;
-using WireMock.Admin.Settings;
-using WireMock.Settings;
-
-namespace WireMock.Util;
-
-internal sealed class TinyMapperUtils
-{
-    public static TinyMapperUtils Instance { get; } = new();
-
-    private TinyMapperUtils()
-    {
-        TinyMapper.Bind<ProxyAndRecordSettings, ProxyAndRecordSettingsModel>();
-        TinyMapper.Bind<WebProxySettings, WebProxySettingsModel>();
-
-        TinyMapper.Bind<ProxyAndRecordSettingsModel, ProxyAndRecordSettings>();
-        TinyMapper.Bind<WebProxySettingsModel, WebProxySettings>();
-    }
-
-    public ProxyAndRecordSettingsModel? Map(ProxyAndRecordSettings? instance)
-    {
-        return instance == null ? null : TinyMapper.Map<ProxyAndRecordSettingsModel>(instance);
-    }
-
-    public ProxyAndRecordSettings? Map(ProxyAndRecordSettingsModel? model)
-    {
-        return model == null ? null : TinyMapper.Map<ProxyAndRecordSettings>(model);
-    }
+using Nelibur.ObjectMapper;
+using WireMock.Admin.Settings;
+using WireMock.Settings;
+
+namespace WireMock.Util;
+
+internal sealed class TinyMapperUtils
+{
+    public static TinyMapperUtils Instance { get; } = new();
+
+    private TinyMapperUtils()
+    {
+        TinyMapper.Bind<ProxyAndRecordSettings, ProxyAndRecordSettingsModel>();
+        TinyMapper.Bind<WebProxySettings, WebProxySettingsModel>();
+        TinyMapper.Bind<ProxyUrlReplaceSettings, ProxyUrlReplaceSettingsModel>();
+
+        TinyMapper.Bind<ProxyAndRecordSettingsModel, ProxyAndRecordSettings>();
+        TinyMapper.Bind<WebProxySettingsModel, WebProxySettings>();
+        TinyMapper.Bind<ProxyUrlReplaceSettingsModel, ProxyUrlReplaceSettings>();
+    }
+
+    public ProxyAndRecordSettingsModel? Map(ProxyAndRecordSettings? instance)
+    {
+        return instance == null ? null : TinyMapper.Map<ProxyAndRecordSettingsModel>(instance);
+    }
+
+    public ProxyAndRecordSettings? Map(ProxyAndRecordSettingsModel? model)
+    {
+        return model == null ? null : TinyMapper.Map<ProxyAndRecordSettings>(model);
+    }
 }

src/WireMock.Org.Abstractions/MappingsResponseFaultConstants.cs

@@ -1,16 +1,11 @@
-namespace WireMock.Org.Abstractions
+namespace WireMock.Org.Abstractions;
+
+/// <summary>
+/// The fault to apply (instead of a full, valid response).
+/// </summary>
+public static class MappingsResponseFaultConstants
 {
-    /// <summary>
-    /// The fault to apply (instead of a full, valid response).
-    /// </summary>
-    public static class MappingsResponseFaultConstants
-    {
-        public const string CONNECTIONRESETBYPEER = "CONNECTION_RESET_BY_PEER";
+    public const string EMPTYRESPONSE = "EMPTY_RESPONSE";
 
-        public const string EMPTYRESPONSE = "EMPTY_RESPONSE";
-
-        public const string MALFORMEDRESPONSECHUNK = "MALFORMED_RESPONSE_CHUNK";
-
-        public const string RANDOMDATATHENCLOSE = "RANDOM_DATA_THEN_CLOSE";
-    }
-}
+    public const string MALFORMEDRESPONSECHUNK = "MALFORMED_RESPONSE_CHUNK";
+}

test/WireMock.Net.Tests/Owin/MappingMatcherTests.cs

@@ -6,6 +6,7 @@ using WireMock.Logging;
 using WireMock.Matchers.Request;
 using WireMock.Models;
 using WireMock.Owin;
+using WireMock.Services;
 using WireMock.Util;
 using Xunit;
 
@@ -14,6 +15,8 @@ namespace WireMock.Net.Tests.Owin;
 public class MappingMatcherTests
 {
     private readonly Mock<IWireMockMiddlewareOptions> _optionsMock;
+    private readonly Mock<IRandomizerDoubleBetween0And1> _randomizerDoubleBetween0And1Mock;
+
     private readonly MappingMatcher _sut;
 
     public MappingMatcherTests()
@@ -29,7 +32,10 @@ public class MappingMatcherTests
         loggerMock.Setup(l => l.Error(It.IsAny<string>()));
         _optionsMock.Setup(o => o.Logger).Returns(loggerMock.Object);
 
-        _sut = new MappingMatcher(_optionsMock.Object);
+        _randomizerDoubleBetween0And1Mock = new Mock<IRandomizerDoubleBetween0And1>();
+        _randomizerDoubleBetween0And1Mock.Setup(r => r.Generate()).Returns(0.0);
+
+        _sut = new MappingMatcher(_optionsMock.Object, _randomizerDoubleBetween0And1Mock.Object);
     }
 
     [Fact]
@@ -76,8 +82,8 @@ public class MappingMatcherTests
         var guid2 = Guid.Parse("00000000-0000-0000-0000-000000000002");
         var mappings = InitMappings
         (
-            (guid1, new[] { 0.1 }),
-            (guid2, new[] { 1.0 })
+            (guid1, new[] { 0.1 }, null),
+            (guid2, new[] { 1.0 }, null)
         );
         _optionsMock.Setup(o => o.Mappings).Returns(mappings);
 
@@ -104,8 +110,8 @@ public class MappingMatcherTests
         var guid2 = Guid.Parse("00000000-0000-0000-0000-000000000002");
         var mappings = InitMappings
         (
-            (guid1, new[] { 0.1 }),
-            (guid2, new[] { 0.9 })
+            (guid1, new[] { 0.1 }, null),
+            (guid2, new[] { 0.9 }, null)
         );
         _optionsMock.Setup(o => o.Mappings).Returns(mappings);
 
@@ -131,8 +137,8 @@ public class MappingMatcherTests
 
         _optionsMock.SetupGet(o => o.AllowPartialMapping).Returns(true);
         var mappings = InitMappings(
-            (guid1, new[] { 0.1 }),
-            (guid2, new[] { 0.9 })
+            (guid1, new[] { 0.1 }, null),
+            (guid2, new[] { 0.9 }, null)
         );
         _optionsMock.Setup(o => o.Mappings).Returns(mappings);
 
@@ -158,8 +164,8 @@ public class MappingMatcherTests
         var guid1 = Guid.Parse("00000000-0000-0000-0000-000000000001");
         var guid2 = Guid.Parse("00000000-0000-0000-0000-000000000002");
         var mappings = InitMappings(
-            (guid1, new[] { 1.0 }),
-            (guid2, new[] { 1.0, 1.0 })
+            (guid1, new[] { 1.0 }, null),
+            (guid2, new[] { 1.0, 1.0 }, null)
         );
         _optionsMock.Setup(o => o.Mappings).Returns(mappings);
 
@@ -178,7 +184,31 @@ public class MappingMatcherTests
         result.Partial.RequestMatchResult.AverageTotalScore.Should().Be(1.0);
     }
 
-    private static ConcurrentDictionary<Guid, IMapping> InitMappings(params (Guid guid, double[] scores)[] matches)
+    [Fact]
+    public void MappingMatcher_FindBestMatch_WhenProbabilityFailsFirst_ShouldReturnSecondMatch()
+    {
+        // Assign
+        var guid1 = Guid.Parse("00000000-0000-0000-0000-000000000001");
+        var guid2 = Guid.Parse("00000000-0000-0000-0000-000000000002");
+        var mappings = InitMappings
+        (
+            (guid1, new[] { 1.0 }, 1.0),
+            (guid2, new[] { 1.0 }, null)
+        );
+        _optionsMock.Setup(o => o.Mappings).Returns(mappings);
+
+        var request = new RequestMessage(new UrlDetails("http://localhost/foo"), "GET", "::1");
+
+        // Act
+        var result = _sut.FindBestMatch(request);
+
+        // Assert
+        result.Match.Should().NotBeNull();
+        result.Match!.Mapping.Guid.Should().Be(guid2);
+        result.Match.RequestMatchResult.AverageTotalScore.Should().Be(1.0);
+    }
+
+    private static ConcurrentDictionary<Guid, IMapping> InitMappings(params (Guid guid, double[] scores, double? probability)[] matches)
     {
         var mappings = new ConcurrentDictionary<Guid, IMapping>();
 
@@ -193,6 +223,8 @@ public class MappingMatcherTests
                 requestMatchResult.AddScore(typeof(object), score);
             }
 
+            mappingMock.SetupGet(m => m.Probability).Returns(match.probability);
+
             mappingMock.Setup(m => m.GetRequestMatchResult(It.IsAny<RequestMessage>(), It.IsAny<string>())).Returns(requestMatchResult);
 
             mappings.TryAdd(match.guid, mappingMock.Object);

test/WireMock.Net.Tests/Owin/WireMockMiddlewareTests.cs

@@ -177,7 +177,7 @@ public class WireMockMiddlewareTests
         _mappingMock.SetupGet(m => m.Provider).Returns(responseBuilder);
         _mappingMock.SetupGet(m => m.Settings).Returns(settings);
 
-        var newMappingFromProxy = new Mapping(Guid.NewGuid(), _updatedAt, string.Empty, string.Empty, null, settings, Request.Create(), Response.Create(), 0, null, null, null, null, null, false, null, null);
+        var newMappingFromProxy = new Mapping(Guid.NewGuid(), _updatedAt, string.Empty, string.Empty, null, settings, Request.Create(), Response.Create(), 0, null, null, null, null, null, false, null, null, null);
         _mappingMock.Setup(m => m.ProvideResponseAsync(It.IsAny<RequestMessage>())).ReturnsAsync((new ResponseMessage(), newMappingFromProxy));
 
         var requestBuilder = Request.Create().UsingAnyMethod();
@@ -231,7 +231,7 @@ public class WireMockMiddlewareTests
         _mappingMock.SetupGet(m => m.Provider).Returns(responseBuilder);
         _mappingMock.SetupGet(m => m.Settings).Returns(settings);
 
-        var newMappingFromProxy = new Mapping(Guid.NewGuid(), _updatedAt, "my-title", "my-description", null, settings, Request.Create(), Response.Create(), 0, null, null, null, null, null, false, null, data: null);
+        var newMappingFromProxy = new Mapping(Guid.NewGuid(), _updatedAt, "my-title", "my-description", null, settings, Request.Create(), Response.Create(), 0, null, null, null, null, null, false, null, data: null, probability: null);
         _mappingMock.Setup(m => m.ProvideResponseAsync(It.IsAny<RequestMessage>())).ReturnsAsync((new ResponseMessage(), newMappingFromProxy));
 
         var requestBuilder = Request.Create().UsingAnyMethod();

test/WireMock.Net.Tests/Serialization/MappingConverterTests.ToCSharpCode.cs

@@ -136,7 +136,8 @@ public partial class MappingConverterTests
             null,
             false,
             null,
-            data: null
+            data: null,
+            probability: 0.3
         );
     }
 }

test/WireMock.Net.Tests/Serialization/MappingConverterTests.ToCSharpCode_With_Builder_And_AddStartIsFalse.verified.txt

@@ -9,8 +9,9 @@
         .WithBody("b")
     )
     .WithGuid("8e7b9ab7-e18e-4502-8bc9-11e6679811cc")
+    .WithProbability(0.3)
     .RespondWith(Response.Create()
-        .WithHeader("Keep-Alive)", "test")
+        .WithHeader("Keep-Alive", "test")
         .WithBody("bbb")
         .WithDelay(12345)
         .WithTransformer()

test/WireMock.Net.Tests/Serialization/MappingConverterTests.ToCSharpCode_With_Builder_And_AddStartIsTrue.verified.txt

@@ -10,8 +10,9 @@ builder
         .WithBody("b")
     )
     .WithGuid("8e7b9ab7-e18e-4502-8bc9-11e6679811cc")
+    .WithProbability(0.3)
     .RespondWith(Response.Create()
-        .WithHeader("Keep-Alive)", "test")
+        .WithHeader("Keep-Alive", "test")
         .WithBody("bbb")
         .WithDelay(12345)
         .WithTransformer()

test/WireMock.Net.Tests/Serialization/MappingConverterTests.ToCSharpCode_With_Server_And_AddStartIsFalse.verified.txt

@@ -9,8 +9,9 @@
         .WithBody("b")
     )
     .WithGuid("8e7b9ab7-e18e-4502-8bc9-11e6679811cc")
+    .WithProbability(0.3)
     .RespondWith(Response.Create()
-        .WithHeader("Keep-Alive)", "test")
+        .WithHeader("Keep-Alive", "test")
         .WithBody("bbb")
         .WithDelay(12345)
         .WithTransformer()

test/WireMock.Net.Tests/Serialization/MappingConverterTests.ToCSharpCode_With_Server_And_AddStartIsTrue.verified.txt

@@ -10,8 +10,9 @@ server
         .WithBody("b")
     )
     .WithGuid("8e7b9ab7-e18e-4502-8bc9-11e6679811cc")
+    .WithProbability(0.3)
     .RespondWith(Response.Create()
-        .WithHeader("Keep-Alive)", "test")
+        .WithHeader("Keep-Alive", "test")
         .WithBody("bbb")
         .WithDelay(12345)
         .WithTransformer()

test/WireMock.Net.Tests/Serialization/MappingConverterTests.ToMappingModel_WithProbability_ReturnsCorrectModel.verified.txt

@@ -0,0 +1,11 @@
+{
+  Guid: Guid_1,
+  UpdatedAt: DateTime_1,
+  Title: ,
+  Description: ,
+  Priority: 42,
+  Request: {},
+  Response: {},
+  UseWebhooksFireAndForget: false,
+  Probability: 0.4
+}

test/WireMock.Net.Tests/Serialization/MappingConverterTests.cs

@@ -57,7 +57,7 @@ public partial class MappingConverterTests
                 }
             }
         };
-        var mapping = new Mapping(_guid, _updatedAt, string.Empty, string.Empty, null, _settings, request, response, 0, null, null, null, null, webhooks, false, null, data: null);
+        var mapping = new Mapping(_guid, _updatedAt, string.Empty, string.Empty, null, _settings, request, response, 0, null, null, null, null, webhooks, false, null, data: null, probability: null);
 
         // Act
         var model = _sut.ToMappingModel(mapping);
@@ -130,7 +130,7 @@ public partial class MappingConverterTests
                 }
             }
         };
-        var mapping = new Mapping(_guid, _updatedAt, string.Empty, string.Empty, null, _settings, request, response, 0, null, null, null, null, webhooks, true, null, data: null);
+        var mapping = new Mapping(_guid, _updatedAt, string.Empty, string.Empty, null, _settings, request, response, 0, null, null, null, null, webhooks, true, null, data: null, probability: null);
 
         // Act
         var model = _sut.ToMappingModel(mapping);
@@ -168,7 +168,7 @@ public partial class MappingConverterTests
         var description = "my-description";
         var request = Request.Create();
         var response = Response.Create();
-        var mapping = new Mapping(_guid, _updatedAt, title, description, null, _settings, request, response, 0, null, null, null, null, null, false, null, data: null);
+        var mapping = new Mapping(_guid, _updatedAt, title, description, null, _settings, request, response, 0, null, null, null, null, null, false, null, data: null, probability: null);
 
         // Act
         var model = _sut.ToMappingModel(mapping);
@@ -188,7 +188,7 @@ public partial class MappingConverterTests
         // Assign
         var request = Request.Create();
         var response = Response.Create().WithBodyAsJson(new { x = "x" }).WithTransformer();
-        var mapping = new Mapping(_guid, _updatedAt, string.Empty, string.Empty, null, _settings, request, response, 42, null, null, null, null, null, false, null, data: null);
+        var mapping = new Mapping(_guid, _updatedAt, string.Empty, string.Empty, null, _settings, request, response, 42, null, null, null, null, null, false, null, data: null, probability: null);
 
         // Act
         var model = _sut.ToMappingModel(mapping);
@@ -217,7 +217,7 @@ public partial class MappingConverterTests
             End = end,
             TTL = ttl
         };
-        var mapping = new Mapping(_guid, _updatedAt, string.Empty, string.Empty, null, _settings, request, response, 42, null, null, null, null, null, false, timeSettings, data: null);
+        var mapping = new Mapping(_guid, _updatedAt, string.Empty, string.Empty, null, _settings, request, response, 42, null, null, null, null, null, false, timeSettings, data: null, probability: null);
 
         // Act
         var model = _sut.ToMappingModel(mapping);
@@ -248,7 +248,7 @@ public partial class MappingConverterTests
         {
             var request = Request.Create();
             var response = Response.Create().WithDelay(test.Delay);
-            var mapping = new Mapping(Guid.NewGuid(), _updatedAt, string.Empty, string.Empty, string.Empty, _settings, request, response, 42, null, null, null, null, null, false, null, data: null);
+            var mapping = new Mapping(Guid.NewGuid(), _updatedAt, string.Empty, string.Empty, string.Empty, _settings, request, response, 42, null, null, null, null, null, false, null, data: null, probability: null);
 
             // Act
             var model = _sut.ToMappingModel(mapping);
@@ -266,7 +266,7 @@ public partial class MappingConverterTests
         var delay = 1000;
         var request = Request.Create();
         var response = Response.Create().WithDelay(delay);
-        var mapping = new Mapping(_guid, _updatedAt, string.Empty, string.Empty, null, _settings, request, response, 42, null, null, null, null, null, false, null, data: null);
+        var mapping = new Mapping(_guid, _updatedAt, string.Empty, string.Empty, null, _settings, request, response, 42, null, null, null, null, null, false, null, data: null, probability: null);
 
         // Act
         var model = _sut.ToMappingModel(mapping);
@@ -286,7 +286,7 @@ public partial class MappingConverterTests
         int minimumDelay = 1000;
         var request = Request.Create();
         var response = Response.Create().WithRandomDelay(minimumDelay);
-        var mapping = new Mapping(_guid, _updatedAt, string.Empty, string.Empty, null, _settings, request, response, 42, null, null, null, null, null, false, null, data: null);
+        var mapping = new Mapping(_guid, _updatedAt, string.Empty, string.Empty, null, _settings, request, response, 42, null, null, null, null, null, false, null, data: null, probability: null);
 
         // Act
         var model = _sut.ToMappingModel(mapping);
@@ -309,7 +309,7 @@ public partial class MappingConverterTests
         int maximumDelay = 2000;
         var request = Request.Create();
         var response = Response.Create().WithRandomDelay(minimumDelay, maximumDelay);
-        var mapping = new Mapping(_guid, _updatedAt, string.Empty, string.Empty, null, _settings, request, response, 42, null, null, null, null, null, false, null, data: null);
+        var mapping = new Mapping(_guid, _updatedAt, string.Empty, string.Empty, null, _settings, request, response, 42, null, null, null, null, null, false, null, data: null, probability: null);
 
         // Act
         var model = _sut.ToMappingModel(mapping);
@@ -323,5 +323,25 @@ public partial class MappingConverterTests
         // Verify
         return Verifier.Verify(model);
     }
+
+    [Fact]
+    public Task ToMappingModel_WithProbability_ReturnsCorrectModel()
+    {
+        // Assign
+        double probability = 0.4;
+        var request = Request.Create();
+        var response = Response.Create();
+        var mapping = new Mapping(_guid, _updatedAt, string.Empty, string.Empty, null, _settings, request, response, 42, null, null, null, null, null, false, null, data: null, probability: probability);
+
+        // Act
+        var model = _sut.ToMappingModel(mapping);
+
+        // Assert
+        model.Should().NotBeNull();
+        model.Probability.Should().Be(0.4);
+
+        // Verify
+        return Verifier.Verify(model);
+    }
 }
 #endif

test/WireMock.Net.Tests/WireMockAdminApiTests.IWireMockAdminApi_GetMappingCodeByGuidAsync.verified.txt

@@ -7,5 +7,6 @@ server
     )
     .WithGuid("90356dba-b36c-469a-a17e-669cd84f1f05")
     .RespondWith(Response.Create()
+        .WithStatusCode(200)
         .WithBody("1")
     );

test/WireMock.Net.Tests/WireMockAdminApiTests.IWireMockAdminApi_GetMappingsCode.verified.txt

@@ -7,18 +7,59 @@ server
     )
     .WithGuid("90356dba-b36c-469a-a17e-669cd84f1f05")
     .RespondWith(Response.Create()
+        .WithStatusCode(200)
         .WithBody("1")
     );
 
 server
     .Given(Request.Create()
-        .UsingMethod("GET")
+        .UsingMethod("POST")
         .WithPath("/foo2")
         .WithParam("p2", "abc")
+        .WithHeader("h1", "W/\"234f2q3r\"", true)
     )
     .WithGuid("1b731398-4a5b-457f-a6e3-d65e541c428f")
     .RespondWith(Response.Create()
-        .WithHeader("hk)", "hv")
+        .WithStatusCode("201")
+        .WithHeader("hk", "hv")
+        .WithHeader("ETag", "W/\"168d8e\"")
         .WithBody("2")
     );
 
+server
+    .Given(Request.Create()
+        .UsingMethod("DELETE")
+        .WithUrl("https://localhost/test")
+    )
+    .WithGuid("f74fd144-df53-404f-8e35-da22a640bd5f")
+    .RespondWith(Response.Create()
+        .WithStatusCode(208)
+        .WithBodyAsJson(new
+        {
+            a = 1,
+            b = 1.2,
+            d = true,
+            e = false,
+            f = new [] { 1, 2, 3, 4 },
+            g = new
+            {
+                z1 = 1,
+                z2 = 2,
+                z3 = new [] { "a", "b", "c" },
+                z4 = new []
+                {
+                    new
+                    {
+                        a = 1,
+                        b = 2
+                    },
+                    new
+                    {
+                        a = 2,
+                        b = 3
+                    }
+                }
+            }
+        })
+    );
+

test/WireMock.Net.Tests/WireMockAdminApiTests.cs

@@ -2,6 +2,7 @@
 using System;
 using System.IO;
 using System.Linq;
+using System.Net;
 using System.Net.Http;
 using System.Net.Http.Headers;
 using System.Text;
@@ -717,6 +718,7 @@ public class WireMockAdminApiTests
         // Arrange
         var guid1 = Guid.Parse("90356dba-b36c-469a-a17e-669cd84f1f05");
         var guid2 = Guid.Parse("1b731398-4a5b-457f-a6e3-d65e541c428f");
+        var guid3 = Guid.Parse("f74fd144-df53-404f-8e35-da22a640bd5f");
         var server = WireMockServer.StartWithAdminInterface();
 
         server
@@ -738,21 +740,36 @@ public class WireMockAdminApiTests
                 Request.Create()
                     .WithPath("/foo2")
                     .WithParam("p2", "abc")
-                    .UsingGet()
+                    .WithHeader("h1", "W/\"234f2q3r\"")
+                    .UsingPost()
             )
             .WithGuid(guid2)
             .RespondWith(
                 Response.Create()
-                    .WithStatusCode(201)
+                    .WithStatusCode("201")
                     .WithHeader("hk", "hv")
+                    .WithHeader("ETag", "W/\"168d8e\"")
                     .WithBody("2")
             );
 
+        server
+            .Given(
+                Request.Create()
+                    .WithUrl("https://localhost/test")
+                    .UsingDelete()
+            )
+            .WithGuid(guid3)
+            .RespondWith(
+                Response.Create()
+                    .WithStatusCode(HttpStatusCode.AlreadyReported)
+                    .WithBodyAsJson(new { a = 1, b=1.2, d=true, e=false, f=new[]{1,2,3,4}, g= new{z1=1, z2=2, z3=new []{"a","b","c"}, z4=new[]{new {a=1, b=2},new {a=2, b=3}}} })
+            );
+
         // Act
         var api = RestClient.For<IWireMockAdminApi>(server.Url);
 
         var mappings = await api.GetMappingsAsync().ConfigureAwait(false);
-        mappings.Should().HaveCount(2);
+        mappings.Should().HaveCount(3);
 
         var code = await api.GetMappingsCodeAsync().ConfigureAwait(false);
 

test/WireMock.Net.Tests/WireMockServer.Proxy.cs

@@ -570,6 +570,52 @@ public class WireMockServerProxyTests
         Check.That(matchers).Contains("name");
     }
 
+    [Fact]
+    public async Task WireMockServer_Proxy_Should_replace_old_path_value_with_new_path_value_in_replace_settings()
+    {
+        // Assign
+        var replaceSettings = new ProxyUrlReplaceSettings
+        {
+            OldValue = "value-to-replace",
+            NewValue = "new-value"
+        };
+        string path = $"/prx_{Guid.NewGuid()}";
+        var serverForProxyForwarding = WireMockServer.Start();
+        serverForProxyForwarding
+            .Given(Request.Create().WithPath($"/{replaceSettings.NewValue}{path}"))
+            .RespondWith(Response.Create());
+
+        var settings = new WireMockServerSettings
+        {
+            ProxyAndRecordSettings = new ProxyAndRecordSettings
+            {
+                Url = serverForProxyForwarding.Urls[0],
+                SaveMapping = true,
+                SaveMappingToFile = false,
+                ReplaceSettings = replaceSettings
+            }
+        };
+        var server = WireMockServer.Start(settings);
+        var defaultMapping = server.Mappings.First();
+
+        // Act
+        var requestMessage = new HttpRequestMessage
+        {
+            Method = HttpMethod.Post,
+            RequestUri = new Uri($"{server.Urls[0]}/{replaceSettings.OldValue}{path}"),
+            Content = new StringContent("stringContent")
+        };
+
+        var handler = new HttpClientHandler();
+        await new HttpClient(handler).SendAsync(requestMessage).ConfigureAwait(false);
+
+        // Assert
+        var mapping = serverForProxyForwarding.Mappings.FirstOrDefault(m => m.Guid != defaultMapping.Guid);
+        var score = mapping.RequestMatcher.GetMatchingScore(serverForProxyForwarding.LogEntries.First().RequestMessage,
+            new RequestMatchResult());
+        Check.That(score).IsEqualTo(1.0);
+    }
+
     [Fact]
     public async Task WireMockServer_Proxy_Should_preserve_content_header_in_proxied_request_with_empty_content()
     {
@@ -701,7 +747,7 @@ public class WireMockServerProxyTests
     /// <summary>
     /// Send some binary content in a request through the proxy and check that the same content
     /// arrived at the target. As example a JPEG/JIFF header is used, which is not representable
-    /// in UTF8 and breaks if it is not treated as binary content. 
+    /// in UTF8 and breaks if it is not treated as binary content.
     /// </summary>
     [Fact]
     public async Task WireMockServer_Proxy_Should_preserve_binary_request_content()

test/WireMock.Net.Tests/WireMockServerTests.WithProbability.cs

@@ -0,0 +1,37 @@
+using System;
+using System.Linq;
+using System.Net;
+using System.Threading.Tasks;
+using WireMock.RequestBuilders;
+using WireMock.ResponseBuilders;
+using WireMock.Server;
+using Xunit;
+
+namespace WireMock.Net.Tests;
+
+public partial class WireMockServerTests
+{
+    [Fact]
+    public async Task WireMockServer_WithProbability()
+    {
+        // Arrange
+        var server = WireMockServer.Start();
+        server
+            .Given(Request.Create().UsingGet().WithPath("/foo"))
+            .WithProbability(0.5)
+            .RespondWith(Response.Create().WithStatusCode(200));
+
+        server
+            .Given(Request.Create().UsingGet().WithPath("/foo"))
+            .RespondWith(Response.Create().WithStatusCode(500));
+
+        // Act
+        var requestUri = new Uri($"http://localhost:{server.Port}/foo");
+        var response = await server.CreateClient().GetAsync(requestUri).ConfigureAwait(false);
+
+        // Assert
+        Assert.True(new[] { HttpStatusCode.OK, HttpStatusCode.InternalServerError }.Contains(response.StatusCode));
+
+        server.Stop();
+    }
+}

test/WireMock.Net.Tests/WireMockServerTests.cs

@@ -34,6 +34,32 @@ public partial class WireMockServerTests
         _testOutputHelper = testOutputHelper;
     }
 
+    [Fact]
+    public void WireMockServer_Start()
+    {
+        // Act
+        var server = WireMockServer.Start();
+
+        // Assert
+        server.IsStarted.Should().BeTrue();
+        server.IsStartedWithAdminInterface.Should().BeFalse();
+
+        server.Stop();
+    }
+
+    [Fact]
+    public void WireMockServer_StartWithAdminInterface()
+    {
+        // Act
+        var server = WireMockServer.StartWithAdminInterface();
+
+        // Assert
+        server.IsStarted.Should().BeTrue();
+        server.IsStartedWithAdminInterface.Should().BeTrue();
+
+        server.Stop();
+    }
+
     [Fact]
     public async Task WireMockServer_Should_Reset_LogEntries()
     {