1.5.21

* RequestBuilder : add WithBodyAsJson and WithBody (with IJsonConverter)

* tests

CHANGELOG.md

@@ -1,3 +1,24 @@
+# 1.5.21 (22 March 2023)
+- [#908](https://github.com/WireMock-Net/WireMock.Net/pull/908) - RequestBuilder : add WithBodyAsJson and WithBody (with IJsonConverter) [feature] contributed by [StefH](https://github.com/StefH)
+- [#911](https://github.com/WireMock-Net/WireMock.Net/pull/911) - Fixed QueryStringParser for UrlEncoded values [bug] contributed by [StefH](https://github.com/StefH)
+- [#901](https://github.com/WireMock-Net/WireMock.Net/issues/901) - Matching one form-urlencoded value [feature]
+
+# 1.5.20 (19 March 2023)
+- [#905](https://github.com/WireMock-Net/WireMock.Net/pull/905) - Add DeserializeFormUrl Encoded to the settings [feature] contributed by [StefH](https://github.com/StefH)
+- [#907](https://github.com/WireMock-Net/WireMock.Net/pull/907) - Fix issue with application/x-www-form-urlencoded and ExactMatcher [bug] contributed by [StefH](https://github.com/StefH)
+- [#906](https://github.com/WireMock-Net/WireMock.Net/issues/906) - Upgrade to 1.5.19 breaks a form data test [bug]
+
+# 1.5.19 (17 March 2023)
+- [#903](https://github.com/WireMock-Net/WireMock.Net/pull/903) - Add WithBody with IDictionary (form-urlencoded values) [feature] contributed by [StefH](https://github.com/StefH)
+- [#904](https://github.com/WireMock-Net/WireMock.Net/pull/904) - Update Handlebars.Net.Helpers to 2.3.15 [feature] contributed by [StefH](https://github.com/StefH)
+
+# 1.5.18 (09 March 2023)
+- [#893](https://github.com/WireMock-Net/WireMock.Net/pull/893) - Add 'Data' to response which can be used during transforming the response [feature] contributed by [StefH](https://github.com/StefH)
+- [#896](https://github.com/WireMock-Net/WireMock.Net/pull/896) - Bump Microsoft.Owin from 2.0.2 to 4.2.2 in /examples/WireMock.Net.Service [dependencies] contributed by [dependabot[bot]](https://github.com/apps/dependabot)
+- [#900](https://github.com/WireMock-Net/WireMock.Net/pull/900) - ProxySettings : Add logic to not save some requests depending on HttpMethods  [feature] contributed by [StefH](https://github.com/StefH)
+- [#897](https://github.com/WireMock-Net/WireMock.Net/issues/897) - WebHostBuilder.ConfigureServices method not found when using nunit3testadapter 4.4.0 [bug]
+- [#899](https://github.com/WireMock-Net/WireMock.Net/issues/899) - Ignore OPTIONS request when using proxyandrecord [feature]
+
 # 1.5.17 (25 February 2023)
 - [#881](https://github.com/WireMock-Net/WireMock.Net/pull/881) - Add WithBodyAsJson builder method with accepts a Func [feature] contributed by [StefH](https://github.com/StefH)
 - [#882](https://github.com/WireMock-Net/WireMock.Net/pull/882) - Add example code to test HTTP Status 400 and 500 [test] contributed by [StefH](https://github.com/StefH)

Directory.Build.props

@@ -4,7 +4,7 @@
     </PropertyGroup>
 
     <PropertyGroup>
-        <VersionPrefix>1.5.17</VersionPrefix>
+        <VersionPrefix>1.5.21</VersionPrefix>
         <PackageIcon>WireMock.Net-Logo.png</PackageIcon>
         <PackageProjectUrl>https://github.com/WireMock-Net/WireMock.Net</PackageProjectUrl>
         <PackageLicenseExpression>Apache-2.0</PackageLicenseExpression>

Generate-ReleaseNotes.cmd

@@ -1,6 +1,6 @@
 rem https://github.com/StefH/GitHubReleaseNotes
 
-SET version=1.5.17
+SET version=1.5.21
 
 GitHubReleaseNotes --output CHANGELOG.md --skip-empty-releases --exclude-labels question invalid doc duplicate --version %version% --token %GH_TOKEN%
 

PackageReleaseNotes.txt

@@ -1,6 +1,6 @@
-# 1.5.17 (25 February 2023)
-- #881 Add WithBodyAsJson builder method with accepts a Func [feature]
-- #882 Add example code to test HTTP Status 400 and 500 [test]
-- #890 AdminApiMappingBuilder [feature]
+# 1.5.21 (22 March 2023)
+- #908 RequestBuilder : add WithBodyAsJson and WithBody (with IJsonConverter) [feature]
+- #911 Fixed QueryStringParser for UrlEncoded values [bug]
+- #901 Matching one form-urlencoded value [feature]
 
 The full release notes can be found here: https://github.com/WireMock-Net/WireMock.Net/blob/master/CHANGELOG.md

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

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

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

@@ -643,6 +643,7 @@ namespace WireMock.Net.ConsoleApplication
                     .WithStatusCode(200)
                     .WithHeader("Content-Type", "application/json")
                     .WithBodyAsJson(new { Id = "5bdf076c-5654-4b3e-842c-7caf1fabf8c9" }));
+
             server
                 .Given(Request.Create().WithPath("/random200or505").UsingGet())
                 .RespondWith(Response.Create().WithCallback(request =>
@@ -650,7 +651,11 @@ namespace WireMock.Net.ConsoleApplication
                     int code = new Random().Next(1, 2) == 1 ? 505 : 200;
                     return new ResponseMessage
                     {
-                        BodyData = new BodyData { BodyAsString = "random200or505:" + code, DetectedBodyType = Types.BodyType.String },
+                        BodyData = new BodyData
+                        {
+                            BodyAsString = "random200or505:" + code + ", HeadersFromRequest = " + string.Join(",", request.Headers),
+                            DetectedBodyType = Types.BodyType.String,
+                        },
                         StatusCode = code
                     };
                 }));

examples/WireMock.Net.Service/packages.config

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

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

@@ -1,4 +1,5 @@
 using System;
+using System.Collections.Generic;
 using WireMock.Models;
 
 namespace WireMock.Admin.Mappings;
@@ -84,4 +85,13 @@ public class MappingModel
     /// Fire and forget for webhooks.
     /// </summary>
     public bool? UseWebhooksFireAndForget { get; set; }
+    
+    /// <summary>
+    /// Data Object which can be used when WithTransformer is used.
+    /// e.g. lookup an path in this object using
+    /// <example>
+    /// lookup data "1"
+    /// </example>
+    /// </summary>
+    public object? Data { get; set; }
 }

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

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

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

@@ -31,27 +31,49 @@ public class SettingsModel
     public int? MaxRequestLogCount { get; set; }
 
     /// <summary>
-    /// Allow a Body for all HTTP Methods. (default set to false).
+    /// Allow a Body for all HTTP Methods. (default set to <c>false</c>).
     /// </summary>
     public bool? AllowBodyForAllHttpMethods { get; set; }
 
     /// <summary>
-    /// Handle all requests synchronously. (default set to false).
+    /// Allow only a HttpStatus Code in the response which is defined. (default set to <c>false</c>).
+    /// - false : also null, 0, empty or invalid HttpStatus codes are allowed.
+    /// - true  : only codes defined in <see cref="System.Net.HttpStatusCode"/> are allowed.
+    /// </summary>
+    public bool? AllowOnlyDefinedHttpStatusCodeInResponse { get; set; }
+
+    /// <summary>
+    /// Set to true to disable Json deserialization when processing requests. (default set to <c>false</c>).
+    /// </summary>
+    public bool? DisableJsonBodyParsing { get; set; }
+
+    /// <summary>
+    /// Disable support for GZip and Deflate request body decompression. (default set to <c>false</c>).
+    /// </summary>
+    public bool? DisableRequestBodyDecompressing { get; set; }
+
+    /// <summary>
+    /// Set to true to disable FormUrlEncoded deserializing when processing requests. (default set to <c>false</c>).
+    /// </summary>
+    public bool? DisableDeserializeFormUrlEncoded { get; set; }
+
+    /// <summary>
+    /// Handle all requests synchronously. (default set to <c>false</c>).
     /// </summary>
     public bool? HandleRequestsSynchronously { get; set; }
 
     /// <summary>
-    /// Throw an exception when the Matcher fails because of invalid input. (default set to false).
+    /// Throw an exception when the Matcher fails because of invalid input. (default set to <c>false</c>).
     /// </summary>
     public bool? ThrowExceptionWhenMatcherFails { get; set; }
 
     /// <summary>
-    /// Use the RegexExtended instead of the default <see cref="Regex"/>.  (default set to true).
+    /// Use the RegexExtended instead of the default <see cref="Regex"/>.  (default set to <c>true</c>).
     /// </summary>
     public bool? UseRegexExtended { get; set; }
 
     /// <summary>
-    /// Save unmatched requests to a file using the <see cref="IFileSystemHandler"/>. (default set to false).
+    /// Save unmatched requests to a file using the <see cref="IFileSystemHandler"/>. (default set to <c>false</c>).
     /// </summary>
     public bool? SaveUnmatchedRequests { get; set; }
 
@@ -86,7 +108,7 @@ public class SettingsModel
     public HostingScheme? HostingScheme { get; set; }
 
     /// <summary>
-    /// Don't save the response-string in the LogEntry when WithBody(Func{IRequestMessage, string}) or WithBody(Func{IRequestMessage, Task{string}}) is used. (default set to false).
+    /// Don't save the response-string in the LogEntry when WithBody(Func{IRequestMessage, string}) or WithBody(Func{IRequestMessage, Task{string}}) is used. (default set to <c>false</c>).
     /// </summary>
     public bool? DoNotSaveDynamicResponseInLogEntry { get; set; }
 

src/WireMock.Net.Abstractions/IResponseMessage.cs

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

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

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

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

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

src/WireMock.Net/Http/HttpRequestMessageHelper.cs

@@ -28,7 +28,7 @@ internal static class HttpRequestMessageHelper
         switch (requestMessage.BodyData?.DetectedBodyType)
         {
             case BodyType.Bytes:
-                httpRequestMessage.Content = ByteArrayContentHelper.Create(requestMessage.BodyData.BodyAsBytes, contentType);
+                httpRequestMessage.Content = ByteArrayContentHelper.Create(requestMessage.BodyData.BodyAsBytes!, contentType);
                 break;
 
             case BodyType.Json:
@@ -36,7 +36,8 @@ internal static class HttpRequestMessageHelper
                 break;
 
             case BodyType.String:
-                httpRequestMessage.Content = StringContentHelper.Create(requestMessage.BodyData.BodyAsString, contentType);
+            case BodyType.FormUrlEncoded:
+                httpRequestMessage.Content = StringContentHelper.Create(requestMessage.BodyData.BodyAsString!, contentType);
                 break;
         }
 

src/WireMock.Net/Http/HttpResponseMessageHelper.cs

@@ -15,7 +15,8 @@ internal static class HttpResponseMessageHelper
         Uri requiredUri,
         Uri originalUri,
         bool deserializeJson,
-        bool decompressGzipAndDeflate)
+        bool decompressGzipAndDeflate,
+        bool deserializeFormUrlEncoded)
     {
         var responseMessage = new ResponseMessage { StatusCode = (int)httpResponseMessage.StatusCode };
 
@@ -44,7 +45,8 @@ internal static class HttpResponseMessageHelper
                     ContentType = contentTypeHeader?.FirstOrDefault(),
                     DeserializeJson = deserializeJson,
                     ContentEncoding = contentEncodingHeader?.FirstOrDefault(),
-                    DecompressGZipAndDeflate = decompressGzipAndDeflate
+                    DecompressGZipAndDeflate = decompressGzipAndDeflate,
+                    DeserializeFormUrlEncoded = deserializeFormUrlEncoded
                 };
                 responseMessage.BodyData = await BodyParser.ParseAsync(bodyParserSettings).ConfigureAwait(false);
             }
@@ -55,7 +57,7 @@ internal static class HttpResponseMessageHelper
             // If Location header contains absolute redirect URL, and base URL is one that we proxy to,
             // we need to replace it to original one.
             if (string.Equals(header.Key, HttpKnownHeaderNames.Location, StringComparison.OrdinalIgnoreCase)
-                && Uri.TryCreate(header.Value.First(), UriKind.Absolute, out Uri absoluteLocationUri)
+                && Uri.TryCreate(header.Value.First(), UriKind.Absolute, out var absoluteLocationUri)
                 && string.Equals(absoluteLocationUri.Host, requiredUri.Host, StringComparison.OrdinalIgnoreCase))
             {
                 var replacedLocationUri = new Uri(originalUri, absoluteLocationUri.PathAndQuery);

src/WireMock.Net/IMapping.cs

@@ -1,4 +1,5 @@
 using System;
+using System.Collections.Generic;
 using System.Threading.Tasks;
 using WireMock.Matchers.Request;
 using WireMock.Models;
@@ -120,7 +121,16 @@ public interface IMapping
     /// <summary>
     /// Use Fire and Forget for the defined webhook(s). [Optional]
     /// </summary>
-    public bool? UseWebhooksFireAndForget { get; set; }
+    bool? UseWebhooksFireAndForget { get; set; }
+
+    /// <summary>
+    /// Data Object which can be used when WithTransformer is used.
+    /// e.g. lookup an path in this object using
+    /// <example>
+    /// lookup data "1"
+    /// </example>
+    /// </summary>
+    object? Data { get; set; }
 
     /// <summary>
     /// ProvideResponseAsync

src/WireMock.Net/Json/DynamicJsonClassOptions.cs

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

src/WireMock.Net/Json/DynamicPropertyWithValue.cs

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

src/WireMock.Net/Json/FloatBehavior.cs

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

src/WireMock.Net/Json/IntegerBehavior.cs

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

src/WireMock.Net/Json/JObjectExtensions.cs

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

src/WireMock.Net/Mapping.cs

@@ -72,6 +72,9 @@ public class Mapping : IMapping
     /// <inheritdoc />
     public ITimeSettings? TimeSettings { get; }
 
+    /// <inheritdoc />
+    public object? Data { get; set; }
+
     /// <summary>
     /// Initializes a new instance of the <see cref="Mapping"/> class.
     /// </summary>
@@ -91,6 +94,7 @@ public class Mapping : IMapping
     /// <param name="webhooks">The Webhooks. [Optional]</param>
     /// <param name="useWebhooksFireAndForget">Use Fire and Forget for the defined webhook(s). [Optional]</param>
     /// <param name="timeSettings">The TimeSettings. [Optional]</param>
+    /// <param name="data">The data object. [Optional]</param>
     public Mapping(
         Guid guid,
         DateTime updatedAt,
@@ -107,7 +111,8 @@ public class Mapping : IMapping
         int? stateTimes,
         IWebhook[]? webhooks,
         bool? useWebhooksFireAndForget,
-        ITimeSettings? timeSettings)
+        ITimeSettings? timeSettings,
+        object? data)
     {
         Guid = guid;
         UpdatedAt = updatedAt;
@@ -125,6 +130,7 @@ public class Mapping : IMapping
         Webhooks = webhooks;
         UseWebhooksFireAndForget = useWebhooksFireAndForget;
         TimeSettings = timeSettings;
+        Data = data;
     }
 
     /// <inheritdoc cref="IMapping.ProvideResponseAsync" />

src/WireMock.Net/Matchers/LinqMatcher.cs

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

src/WireMock.Net/Matchers/MatchScores.cs

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

src/WireMock.Net/Matchers/NotNullOrEmptyMatcher.cs

@@ -1,3 +1,4 @@
+using System;
 using System.Linq;
 using AnyOfTypes;
 using WireMock.Models;
@@ -62,7 +63,7 @@ public class NotNullOrEmptyMatcher : IObjectMatcher, IStringMatcher
     /// <inheritdoc cref="IStringMatcher.GetPatterns"/>
     public AnyOf<string, StringPattern>[] GetPatterns()
     {
-        return new AnyOf<string, StringPattern>[0];
+        return EmptyArray<AnyOf<string, StringPattern>>.Value;
     }
 
     /// <inheritdoc />

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

@@ -1,8 +1,7 @@
 using System;
+using System.Collections.Generic;
 using System.Linq;
-using AnyOfTypes;
 using Stef.Validation;
-using WireMock.Models;
 using WireMock.Types;
 using WireMock.Util;
 
@@ -33,6 +32,11 @@ public class RequestMessageBodyMatcher : IRequestMatcher
     /// </summary>
     public Func<IBodyData?, bool>? BodyDataFunc { get; }
 
+    /// <summary>
+    /// The body data function for FormUrlEncoded
+    /// </summary>
+    public Func<IDictionary<string, string>?, bool>? FormUrlEncodedFunc { get; }
+
     /// <summary>
     /// The matchers.
     /// </summary>
@@ -109,6 +113,15 @@ public class RequestMessageBodyMatcher : IRequestMatcher
         BodyDataFunc = Guard.NotNull(func);
     }
 
+    /// <summary>
+    /// Initializes a new instance of the <see cref="RequestMessageBodyMatcher"/> class.
+    /// </summary>
+    /// <param name="func">The function.</param>
+    public RequestMessageBodyMatcher(Func<IDictionary<string, string>?, bool> func)
+    {
+        FormUrlEncodedFunc = Guard.NotNull(func);
+    }
+
     /// <summary>
     /// Initializes a new instance of the <see cref="RequestMessageBodyMatcher"/> class.
     /// </summary>
@@ -144,6 +157,7 @@ public class RequestMessageBodyMatcher : IRequestMatcher
             {
                 case BodyType.Json:
                 case BodyType.String:
+                case BodyType.FormUrlEncoded:
                     return notNullOrEmptyMatcher.IsMatch(requestMessage.BodyData.BodyAsString);
 
                 case BodyType.Bytes:
@@ -158,7 +172,7 @@ public class RequestMessageBodyMatcher : IRequestMatcher
         {
             // If the body is a byte array, try to match.
             var detectedBodyType = requestMessage.BodyData?.DetectedBodyType;
-            if (detectedBodyType is BodyType.Bytes or BodyType.String)
+            if (detectedBodyType is BodyType.Bytes or BodyType.String or BodyType.FormUrlEncoded)
             {
                 return exactObjectMatcher.IsMatch(requestMessage.BodyData?.BodyAsBytes);
             }
@@ -184,7 +198,7 @@ public class RequestMessageBodyMatcher : IRequestMatcher
         if (matcher is IStringMatcher stringMatcher)
         {
             // If the body is a Json or a String, use the BodyAsString to match on.
-            if (requestMessage?.BodyData?.DetectedBodyType == BodyType.Json || requestMessage?.BodyData?.DetectedBodyType == BodyType.String)
+            if (requestMessage?.BodyData?.DetectedBodyType is BodyType.Json or BodyType.String or BodyType.FormUrlEncoded)
             {
                 return stringMatcher.IsMatch(requestMessage.BodyData.BodyAsString);
             }
@@ -206,6 +220,11 @@ public class RequestMessageBodyMatcher : IRequestMatcher
             return MatchScores.ToScore(Func(requestMessage.BodyData?.BodyAsString));
         }
 
+        if (FormUrlEncodedFunc != null)
+        {
+            return MatchScores.ToScore(FormUrlEncodedFunc(requestMessage.BodyData?.BodyAsFormUrlEncoded));
+        }
+
         if (JsonFunc != null)
         {
             return MatchScores.ToScore(JsonFunc(requestMessage.BodyData?.BodyAsJson));

src/WireMock.Net/Models/BodyData.cs

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

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

@@ -130,6 +130,7 @@ namespace WireMock.Owin.Mappers
             switch (responseMessage.BodyData?.DetectedBodyType)
             {
                 case BodyType.String:
+                case BodyType.FormUrlEncoded:
                     return (responseMessage.BodyData.Encoding ?? _utf8NoBom).GetBytes(responseMessage.BodyData.BodyAsString!);
 
                 case BodyType.Json:

src/WireMock.Net/Proxy/ProxyHelper.cs

@@ -1,8 +1,10 @@
 using System;
+using System.Linq;
 using System.Net.Http;
 using System.Threading.Tasks;
 using Stef.Validation;
 using WireMock.Http;
+using WireMock.Matchers;
 using WireMock.Serialization;
 using WireMock.Settings;
 using WireMock.Util;
@@ -43,16 +45,45 @@ internal class ProxyHelper
         // Create ResponseMessage
         bool deserializeJson = !_settings.DisableJsonBodyParsing.GetValueOrDefault(false);
         bool decompressGzipAndDeflate = !_settings.DisableRequestBodyDecompressing.GetValueOrDefault(false);
+        bool deserializeFormUrlEncoded = !_settings.DisableDeserializeFormUrlEncoded.GetValueOrDefault(false);
 
-        var responseMessage = await HttpResponseMessageHelper.CreateAsync(httpResponseMessage, requiredUri, originalUri, deserializeJson, decompressGzipAndDeflate).ConfigureAwait(false);
+        var responseMessage = await HttpResponseMessageHelper.CreateAsync(
+            httpResponseMessage,
+            requiredUri,
+            originalUri,
+            deserializeJson,
+            decompressGzipAndDeflate,
+            deserializeFormUrlEncoded
+        ).ConfigureAwait(false);
 
         IMapping? newMapping = null;
-        if (HttpStatusRangeParser.IsMatch(proxyAndRecordSettings.SaveMappingForStatusCodePattern, responseMessage.StatusCode) &&
-            (proxyAndRecordSettings.SaveMapping || proxyAndRecordSettings.SaveMappingToFile))
+
+        var saveMappingSettings = proxyAndRecordSettings.SaveMappingSettings;
+
+        bool save = true;
+        if (saveMappingSettings != null)
+        {
+            save &= Check(saveMappingSettings.StatusCodePattern,
+                () => saveMappingSettings.StatusCodePattern != null && HttpStatusRangeParser.IsMatch(saveMappingSettings.StatusCodePattern, responseMessage.StatusCode)
+            );
+
+            save &= Check(saveMappingSettings.HttpMethods,
+                () => saveMappingSettings.HttpMethods != null && saveMappingSettings.HttpMethods.Value.Contains(requestMessage.Method, StringComparer.OrdinalIgnoreCase)
+            );
+        }
+
+        if (save && (proxyAndRecordSettings.SaveMapping || proxyAndRecordSettings.SaveMappingToFile))
         {
             newMapping = _proxyMappingConverter.ToMapping(mapping, proxyAndRecordSettings, requestMessage, responseMessage);
         }
 
         return (responseMessage, newMapping);
     }
+
+    private static bool Check<T>(ProxySaveMappingSetting<T>? saveMappingSetting, Func<bool> action)
+    {
+        var isMatch = saveMappingSetting is null || action();
+        var matchBehaviour = saveMappingSetting?.MatchBehaviour ?? MatchBehaviour.AcceptOnMatch;
+        return isMatch == (matchBehaviour == MatchBehaviour.AcceptOnMatch);
+    }
 }

src/WireMock.Net/RequestBuilders/IBodyRequestBuilder.cs

@@ -1,4 +1,6 @@
 using System;
+using System.Collections.Generic;
+using JsonConverter.Abstractions;
 using WireMock.Matchers;
 using WireMock.Matchers.Request;
 using WireMock.Util;
@@ -45,35 +47,60 @@ public interface IBodyRequestBuilder : IRequestMatcher
     /// WithBody: Body as object
     /// </summary>
     /// <param name="body">The body.</param>
-    /// <param name="matchBehaviour">The match behaviour.</param>
+    /// <param name="matchBehaviour">The match behaviour [default is AcceptOnMatch].</param>
     /// <returns>The <see cref="IRequestBuilder"/>.</returns>
     IRequestBuilder WithBody(object body, MatchBehaviour matchBehaviour = MatchBehaviour.AcceptOnMatch);
 
+    /// <summary>
+    /// WithBody : Body as a string response based on a object (which will be converted to a JSON string using NewtonSoft.Json).
+    /// </summary>
+    /// <param name="body">The body.</param>
+    /// <param name="matchBehaviour">The match behaviour [default is AcceptOnMatch].</param>
+    /// <returns>A <see cref="IRequestBuilder"/>.</returns>
+    IRequestBuilder WithBodyAsJson(object body, MatchBehaviour matchBehaviour = MatchBehaviour.AcceptOnMatch);
+
+    /// <summary>
+    /// WithBody : Body as a string response based on a object (which will be converted to a JSON string using the <see cref="IJsonConverter"/>).
+    /// </summary>
+    /// <param name="body">The body.</param>
+    /// <param name="converter">The JsonConverter.</param>
+    /// <param name="options">The <see cref="JsonConverterOptions"/> [optional].</param>
+    /// <param name="matchBehaviour">The match behaviour [default is AcceptOnMatch].</param>
+    /// <returns>A <see cref="IRequestBuilder"/>.</returns>
+    IRequestBuilder WithBodyAsJson(object body, IJsonConverter converter, JsonConverterOptions? options = null, MatchBehaviour matchBehaviour = MatchBehaviour.AcceptOnMatch);
+
     /// <summary>
     /// WithBody: func (string)
     /// </summary>
     /// <param name="func">The function.</param>
     /// <returns>The <see cref="IRequestBuilder"/>.</returns>
-    IRequestBuilder WithBody(Func<string, bool> func);
+    IRequestBuilder WithBody(Func<string?, bool> func);
 
     /// <summary>
     /// WithBody: func (byte[])
     /// </summary>
     /// <param name="func">The function.</param>
     /// <returns>The <see cref="IRequestBuilder"/>.</returns>
-    IRequestBuilder WithBody(Func<byte[], bool> func);
+    IRequestBuilder WithBody(Func<byte[]?, bool> func);
 
     /// <summary>
     /// WithBody: func (json object)
     /// </summary>
     /// <param name="func">The function.</param>
     /// <returns>The <see cref="IRequestBuilder"/>.</returns>
-    IRequestBuilder WithBody(Func<object, bool> func);
+    IRequestBuilder WithBody(Func<object?, bool> func);
 
     /// <summary>
     /// WithBody: func (BodyData object)
     /// </summary>
     /// <param name="func">The function.</param>
     /// <returns>The <see cref="IRequestBuilder"/>.</returns>
-    IRequestBuilder WithBody(Func<IBodyData, bool> func);
+    IRequestBuilder WithBody(Func<IBodyData?, bool> func);
+
+    /// <summary>
+    /// WithBody: Body as form-urlencoded values.
+    /// </summary>
+    /// <param name="func">The form-urlencoded values.</param>
+    /// <returns>The <see cref="IRequestBuilder"/>.</returns>
+    IRequestBuilder WithBody(Func<IDictionary<string, string>?, bool> func);
 }

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

@@ -1,36 +1,57 @@
 // This source file is based on mock4net by Alexandre Victoor which is licensed under the Apache 2.0 License.
 // For more details see 'mock4net/LICENSE.txt' and 'mock4net/readme.md' in this project root.
 using System;
+using System.Collections.Generic;
+using JsonConverter.Abstractions;
+using Newtonsoft.Json;
+using Stef.Validation;
 using WireMock.Matchers;
 using WireMock.Matchers.Request;
 using WireMock.Util;
-using Stef.Validation;
 
 namespace WireMock.RequestBuilders;
 
 public partial class Request
 {
-    /// <inheritdoc cref="IBodyRequestBuilder.WithBody(string, MatchBehaviour)"/>
+    /// <inheritdoc />
     public IRequestBuilder WithBody(string body, MatchBehaviour matchBehaviour = MatchBehaviour.AcceptOnMatch)
     {
         _requestMatchers.Add(new RequestMessageBodyMatcher(matchBehaviour, body));
         return this;
     }
 
-    /// <inheritdoc cref="IBodyRequestBuilder.WithBody(byte[], MatchBehaviour)"/>
+    /// <inheritdoc />
     public IRequestBuilder WithBody(byte[] body, MatchBehaviour matchBehaviour = MatchBehaviour.AcceptOnMatch)
     {
         _requestMatchers.Add(new RequestMessageBodyMatcher(matchBehaviour, body));
         return this;
     }
 
-    /// <inheritdoc cref="IBodyRequestBuilder.WithBody(object, MatchBehaviour)"/>
+    /// <inheritdoc />
     public IRequestBuilder WithBody(object body, MatchBehaviour matchBehaviour = MatchBehaviour.AcceptOnMatch)
     {
         _requestMatchers.Add(new RequestMessageBodyMatcher(matchBehaviour, body));
         return this;
     }
 
+    /// <inheritdoc />
+    public IRequestBuilder WithBodyAsJson(object body, MatchBehaviour matchBehaviour = MatchBehaviour.AcceptOnMatch)
+    {
+        var bodyAsJsonString = JsonConvert.SerializeObject(body);
+        _requestMatchers.Add(new RequestMessageBodyMatcher(matchBehaviour, bodyAsJsonString));
+        return this;
+    }
+
+    /// <inheritdoc />
+    public IRequestBuilder WithBodyAsJson(object body, IJsonConverter converter, JsonConverterOptions? options = null, MatchBehaviour matchBehaviour = MatchBehaviour.AcceptOnMatch)
+    {
+        Guard.NotNull(converter);
+
+        var bodyAsJsonString = converter.Serialize(body, options);
+        _requestMatchers.Add(new RequestMessageBodyMatcher(matchBehaviour, bodyAsJsonString));
+        return this;
+    }
+
     /// <inheritdoc />
     public IRequestBuilder WithBody(IMatcher matcher)
     {
@@ -46,39 +67,46 @@ public partial class Request
         return this;
     }
 
-    /// <inheritdoc cref="IBodyRequestBuilder.WithBody(Func{string, bool})"/>
-    public IRequestBuilder WithBody(Func<string, bool> func)
+    /// <inheritdoc />
+    public IRequestBuilder WithBody(Func<string?, bool> func)
     {
-        Guard.NotNull(func, nameof(func));
+        Guard.NotNull(func);
 
         _requestMatchers.Add(new RequestMessageBodyMatcher(func));
         return this;
     }
 
-    /// <inheritdoc cref="IBodyRequestBuilder.WithBody(Func{byte[], bool})"/>
-    public IRequestBuilder WithBody(Func<byte[], bool> func)
+    /// <inheritdoc />
+    public IRequestBuilder WithBody(Func<byte[]?, bool> func)
     {
-        Guard.NotNull(func, nameof(func));
+        Guard.NotNull(func);
 
         _requestMatchers.Add(new RequestMessageBodyMatcher(func));
         return this;
     }
 
-    /// <inheritdoc cref="IBodyRequestBuilder.WithBody(Func{object, bool})"/>
-    public IRequestBuilder WithBody(Func<object, bool> func)
+    /// <inheritdoc />
+    public IRequestBuilder WithBody(Func<object?, bool> func)
     {
-        Guard.NotNull(func, nameof(func));
+        Guard.NotNull(func);
 
         _requestMatchers.Add(new RequestMessageBodyMatcher(func));
         return this;
     }
 
-    /// <inheritdoc cref="IBodyRequestBuilder.WithBody(Func{IBodyData, bool})"/>
-    public IRequestBuilder WithBody(Func<IBodyData, bool> func)
+    /// <inheritdoc />
+    public IRequestBuilder WithBody(Func<IBodyData?, bool> func)
     {
-        Guard.NotNull(func, nameof(func));
+        Guard.NotNull(func);
 
         _requestMatchers.Add(new RequestMessageBodyMatcher(func));
         return this;
     }
+
+    /// <inheritdoc />
+    public IRequestBuilder WithBody(Func<IDictionary<string, string>?, bool> func)
+    {
+        _requestMatchers.Add(new RequestMessageBodyMatcher(Guard.NotNull(func)));
+        return this;
+    }
 }

src/WireMock.Net/ResponseBuilders/IBodyResponseBuilder.cs

@@ -92,7 +92,7 @@ public interface IBodyResponseBuilder : IFaultResponseBuilder
     /// </summary>
     /// <param name="body">The body.</param>
     /// <param name="converter">The JsonConverter.</param>
-    /// <param name="options">The IJsonConverterOption [optional].</param>
+    /// <param name="options">The <see cref="JsonConverterOptions"/> [optional].</param>
     /// <returns>A <see cref="IResponseBuilder"/>.</returns>
     IResponseBuilder WithBody(object body, IJsonConverter converter, JsonConverterOptions? options = null);
 
@@ -102,7 +102,7 @@ public interface IBodyResponseBuilder : IFaultResponseBuilder
     /// <param name="body">The body.</param>
     /// <param name="encoding">The body encoding, can be <c>null</c>.</param>
     /// <param name="converter">The JsonConverter.</param>
-    /// <param name="options">The IJsonConverterOption [optional].</param>
+    /// <param name="options">The <see cref="JsonConverterOptions"/> [optional].</param>
     /// <returns>A <see cref="IResponseBuilder"/>.</returns>
     IResponseBuilder WithBody(object body, Encoding? encoding, IJsonConverter converter, JsonConverterOptions? options = null);
 }

src/WireMock.Net/ResponseBuilders/Response.cs

@@ -107,14 +107,12 @@ public partial class Response : IResponseBuilder
     /// <summary>
     /// Initializes a new instance of the <see cref="Response"/> class.
     /// </summary>
-    /// <param name="responseMessage">
-    /// The response.
-    /// </param>
+    /// <param name="responseMessage">The response.</param>
     private Response(ResponseMessage responseMessage)
     {
         ResponseMessage = responseMessage;
     }
-
+    
     /// <inheritdoc cref="IStatusCodeResponseBuilder.WithStatusCode(int)"/>
     [PublicAPI]
     public IResponseBuilder WithStatusCode(int code)

src/WireMock.Net/Serialization/LogEntryMapper.cs

@@ -44,6 +44,7 @@ internal class LogEntryMapper
             switch (logEntry.RequestMessage.BodyData.DetectedBodyType)
             {
                 case BodyType.String:
+                case BodyType.FormUrlEncoded:
                     logRequestModel.Body = logEntry.RequestMessage.BodyData.BodyAsString;
                     break;
 
@@ -120,6 +121,7 @@ internal class LogEntryMapper
         switch (logEntry.ResponseMessage.BodyData!.DetectedBodyType)
         {
             case BodyType.String:
+            case BodyType.FormUrlEncoded:
                 if (!string.IsNullOrEmpty(logEntry.ResponseMessage.BodyData.IsFuncUsed) && _options.DoNotSaveDynamicResponseInLogEntry == true)
                 {
                     logResponseModel.Body = logEntry.ResponseMessage.BodyData.IsFuncUsed;
@@ -142,6 +144,9 @@ internal class LogEntryMapper
                 logResponseModel.BodyAsFile = logEntry.ResponseMessage.BodyData.BodyAsFile;
                 logResponseModel.BodyAsFileIsCached = logEntry.ResponseMessage.BodyData.BodyAsFileIsCached;
                 break;
+
+            default:
+                break;
         }
     }
 

src/WireMock.Net/Serialization/MappingConverter.cs

@@ -131,6 +131,7 @@ internal class MappingConverter
             switch (response.ResponseMessage.BodyData.DetectedBodyType)
             {
                 case BodyType.String:
+                case BodyType.FormUrlEncoded:
                     sb.AppendLine($"        .WithBody(\"{response.ResponseMessage.BodyData.BodyAsString}\")");
                     break;
             }
@@ -140,7 +141,7 @@ internal class MappingConverter
         {
             sb.AppendLine($"        .WithDelay({response.Delay.Value.TotalMilliseconds})");
         }
-        else if (response.MinimumDelayMilliseconds > 0 && response.MaximumDelayMilliseconds > 0)
+        else if (response is { MinimumDelayMilliseconds: > 0, MaximumDelayMilliseconds: > 0 })
         {
             sb.AppendLine($"        .WithRandomDelay({response.MinimumDelayMilliseconds}, {response.MaximumDelayMilliseconds})");
         }
@@ -181,6 +182,7 @@ internal class MappingConverter
             Scenario = mapping.Scenario,
             WhenStateIs = mapping.ExecutionConditionState,
             SetStateTo = mapping.NextState,
+            Data = mapping.Data,
             Request = new RequestModel
             {
                 Headers = headerMatchers.Any() ? headerMatchers.Select(hm => new HeaderModel
@@ -324,6 +326,7 @@ internal class MappingConverter
                 switch (response.ResponseMessage.BodyData?.DetectedBodyType)
                 {
                     case BodyType.String:
+                    case BodyType.FormUrlEncoded:
                         mappingModel.Response.Body = response.ResponseMessage.BodyData.BodyAsString;
                         break;
 

src/WireMock.Net/Serialization/ProxyMappingConverter.cs

@@ -26,8 +26,12 @@ internal class ProxyMappingConverter
         _dateTimeUtils = Guard.NotNull(dateTimeUtils);
     }
 
-    public IMapping ToMapping(IMapping? mapping, ProxyAndRecordSettings proxyAndRecordSettings, IRequestMessage requestMessage, ResponseMessage responseMessage)
+    public IMapping? ToMapping(IMapping? mapping, ProxyAndRecordSettings proxyAndRecordSettings, IRequestMessage requestMessage, ResponseMessage responseMessage)
     {
+        var useDefinedRequestMatchers = proxyAndRecordSettings.UseDefinedRequestMatchers;
+        var excludedHeaders = new List<string>(proxyAndRecordSettings.ExcludedHeaders ?? new string[] { }) { "Cookie" };
+        var excludedCookies = proxyAndRecordSettings.ExcludedCookies ?? new string[0];
+
         var request = (Request?)mapping?.RequestMatcher;
         var clientIPMatcher = request?.GetRequestMessageMatcher<RequestMessageClientIPMatcher>();
         var pathMatcher = request?.GetRequestMessageMatcher<RequestMessagePathMatcher>();
@@ -37,11 +41,6 @@ internal class ProxyMappingConverter
         var methodMatcher = request?.GetRequestMessageMatcher<RequestMessageMethodMatcher>();
         var bodyMatcher = request?.GetRequestMessageMatcher<RequestMessageBodyMatcher>();
 
-        var useDefinedRequestMatchers = proxyAndRecordSettings.UseDefinedRequestMatchers;
-
-        var excludedHeaders = new List<string>(proxyAndRecordSettings.ExcludedHeaders ?? new string[] { }) { "Cookie" };
-        var excludedCookies = proxyAndRecordSettings.ExcludedCookies ?? new string[] { };
-
         var newRequest = Request.Create();
 
         // ClientIP
@@ -142,6 +141,7 @@ internal class ProxyMappingConverter
                     break;
 
                 case BodyType.String:
+                case BodyType.FormUrlEncoded:
                     newRequest.WithBody(new ExactMatcher(MatchBehaviour.AcceptOnMatch, true, throwExceptionWhenMatcherFails, MatchOperator.Or, requestMessage.BodyData.BodyAsString!));
                     break;
 
@@ -178,7 +178,8 @@ internal class ProxyMappingConverter
             stateTimes: null,
             webhooks: null,
             useWebhooksFireAndForget: null,
-            timeSettings: null
+            timeSettings: null,
+            data: mapping?.Data
         );
     }
 }

src/WireMock.Net/Serialization/WebhookMapper.cs

@@ -97,6 +97,7 @@ internal static class WebhookMapper
             switch (webhook.Request.BodyData.DetectedBodyType)
             {
                 case BodyType.String:
+                case BodyType.FormUrlEncoded:
                     model.Request.Body = webhook.Request.BodyData.BodyAsString;
                     break;
 

src/WireMock.Net/Server/IRespondWithAProvider.cs

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

src/WireMock.Net/Server/RespondWithAProvider.cs

@@ -2,6 +2,7 @@
 // For more details see 'mock4net/LICENSE.txt' and 'mock4net/readme.md' in this project root.
 using System;
 using System.Collections.Generic;
+using JetBrains.Annotations;
 using Stef.Validation;
 using WireMock.Matchers.Request;
 using WireMock.Models;
@@ -39,6 +40,8 @@ internal class RespondWithAProvider : IRespondWithAProvider
 
     public ITimeSettings? TimeSettings { get; private set; }
 
+    public object? Data { get; private set; }
+
     /// <summary>
     /// Initializes a new instance of the <see cref="RespondWithAProvider"/> class.
     /// </summary>
@@ -88,10 +91,20 @@ internal class RespondWithAProvider : IRespondWithAProvider
             _timesInSameState,
             Webhooks,
             _useWebhookFireAndForget,
-            TimeSettings);
+            TimeSettings,
+            Data);
+
         _registrationCallback(mapping, _saveToFile);
     }
 
+    /// <inheritdoc />
+    [PublicAPI]
+    public IRespondWithAProvider WithData(object data)
+    {
+        Data = data;
+        return this;
+    }
+
     /// <inheritdoc />
     public IRespondWithAProvider WithGuid(string guid)
     {

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

@@ -217,10 +217,17 @@ public partial class WireMockServer
         var model = new SettingsModel
         {
             AllowBodyForAllHttpMethods = _settings.AllowBodyForAllHttpMethods,
+            AllowOnlyDefinedHttpStatusCodeInResponse = _settings.AllowOnlyDefinedHttpStatusCodeInResponse,
             AllowPartialMapping = _settings.AllowPartialMapping,
+            DisableDeserializeFormUrlEncoded = _settings.DisableDeserializeFormUrlEncoded,
+            DisableJsonBodyParsing = _settings.DisableJsonBodyParsing,
+            DisableRequestBodyDecompressing = _settings.DisableRequestBodyDecompressing,
+            DoNotSaveDynamicResponseInLogEntry = _settings.DoNotSaveDynamicResponseInLogEntry,
             GlobalProcessingDelay = (int?)_options.RequestProcessingDelay?.TotalMilliseconds,
             HandleRequestsSynchronously = _settings.HandleRequestsSynchronously,
+            HostingScheme = _settings.HostingScheme,
             MaxRequestLogCount = _settings.MaxRequestLogCount,
+            QueryParameterMultipleValueSupport = _settings.QueryParameterMultipleValueSupport,
             ReadStaticMappings = _settings.ReadStaticMappings,
             RequestLogExpirationDuration = _settings.RequestLogExpirationDuration,
             SaveUnmatchedRequests = _settings.SaveUnmatchedRequests,
@@ -228,14 +235,11 @@ public partial class WireMockServer
             UseRegexExtended = _settings.UseRegexExtended,
             WatchStaticMappings = _settings.WatchStaticMappings,
             WatchStaticMappingsInSubdirectories = _settings.WatchStaticMappingsInSubdirectories,
-            HostingScheme = _settings.HostingScheme,
-            DoNotSaveDynamicResponseInLogEntry = _settings.DoNotSaveDynamicResponseInLogEntry,
-            QueryParameterMultipleValueSupport = _settings.QueryParameterMultipleValueSupport,
 
 #if USE_ASPNETCORE
-            CorsPolicyOptions = _settings.CorsPolicyOptions?.ToString(),
+            AcceptAnyClientCertificate = _settings.AcceptAnyClientCertificate,
             ClientCertificateMode = _settings.ClientCertificateMode,
-            AcceptAnyClientCertificate = _settings.AcceptAnyClientCertificate
+            CorsPolicyOptions = _settings.CorsPolicyOptions?.ToString()
 #endif
         };
 
@@ -250,10 +254,16 @@ public partial class WireMockServer
 
         // _settings
         _settings.AllowBodyForAllHttpMethods = settings.AllowBodyForAllHttpMethods;
+        _settings.AllowOnlyDefinedHttpStatusCodeInResponse = settings.AllowOnlyDefinedHttpStatusCodeInResponse;
         _settings.AllowPartialMapping = settings.AllowPartialMapping;
+        _settings.DisableDeserializeFormUrlEncoded = settings.DisableDeserializeFormUrlEncoded;
+        _settings.DisableJsonBodyParsing = settings.DisableJsonBodyParsing;
+        _settings.DisableRequestBodyDecompressing = settings.DisableRequestBodyDecompressing;
+        _settings.DoNotSaveDynamicResponseInLogEntry = settings.DoNotSaveDynamicResponseInLogEntry;
         _settings.HandleRequestsSynchronously = settings.HandleRequestsSynchronously;
         _settings.MaxRequestLogCount = settings.MaxRequestLogCount;
         _settings.ProxyAndRecordSettings = TinyMapperUtils.Instance.Map(settings.ProxyAndRecordSettings);
+        _settings.QueryParameterMultipleValueSupport = settings.QueryParameterMultipleValueSupport;
         _settings.ReadStaticMappings = settings.ReadStaticMappings;
         _settings.RequestLogExpirationDuration = settings.RequestLogExpirationDuration;
         _settings.SaveUnmatchedRequests = settings.SaveUnmatchedRequests;
@@ -261,8 +271,6 @@ public partial class WireMockServer
         _settings.UseRegexExtended = settings.UseRegexExtended;
         _settings.WatchStaticMappings = settings.WatchStaticMappings;
         _settings.WatchStaticMappingsInSubdirectories = settings.WatchStaticMappingsInSubdirectories;
-        _settings.DoNotSaveDynamicResponseInLogEntry = settings.DoNotSaveDynamicResponseInLogEntry;
-        _settings.QueryParameterMultipleValueSupport = settings.QueryParameterMultipleValueSupport;
 
         InitSettings(_settings);
 
@@ -759,14 +767,18 @@ public partial class WireMockServer
 
     private static T DeserializeObject<T>(IRequestMessage requestMessage) where T : new()
     {
-        return requestMessage.BodyData?.DetectedBodyType switch
+        switch (requestMessage.BodyData?.DetectedBodyType)
         {
-            BodyType.String => JsonUtils.DeserializeObject<T>(requestMessage.BodyData.BodyAsString!),
+            case BodyType.String:
+            case BodyType.FormUrlEncoded:
+                return JsonUtils.DeserializeObject<T>(requestMessage.BodyData.BodyAsString!);
 
-            BodyType.Json when requestMessage.BodyData?.BodyAsJson != null => ((JObject)requestMessage.BodyData.BodyAsJson).ToObject<T>()!,
+            case BodyType.Json when requestMessage.BodyData?.BodyAsJson != null:
+                return ((JObject)requestMessage.BodyData.BodyAsJson).ToObject<T>()!;
 
-            _ => throw new NotSupportedException()
-        };
+            default:
+                throw new NotSupportedException();
+        }
     }
 
     private static T[] DeserializeRequestMessageToArray<T>(IRequestMessage requestMessage)

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

@@ -65,7 +65,7 @@ namespace WireMock.Server
                 }
             };
 
-            if (BytesEncodingUtils.TryGetEncoding(bytes, out Encoding encoding) && FileBodyIsString.Select(x => x.Equals(encoding)).Any())
+            if (BytesEncodingUtils.TryGetEncoding(bytes, out var encoding) && FileBodyIsString.Select(x => x.Equals(encoding)).Any())
             {
                 response.BodyData.DetectedBodyType = BodyType.String;
                 response.BodyData.BodyAsString = encoding.GetString(bytes);

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

@@ -46,7 +46,7 @@ public partial class WireMockServer
         }
 
         var respondProvider = Given(requestBuilder, mappingModel.SaveToFile == true);
-
+        
         if (guid != null)
         {
             respondProvider = respondProvider.WithGuid(guid.Value);
@@ -56,6 +56,11 @@ public partial class WireMockServer
             respondProvider = respondProvider.WithGuid(mappingModel.Guid.Value);
         }
 
+        if (mappingModel.Data != null)
+        {
+            respondProvider = respondProvider.WithData(mappingModel.Data);
+        }
+
         var timeSettings = TimeSettingsMapper.Map(mappingModel.TimeSettings);
         if (timeSettings != null)
         {

src/WireMock.Net/Settings/ProxyAndRecordSettings.cs

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

src/WireMock.Net/Settings/ProxySaveMappingSetting.cs

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

src/WireMock.Net/Settings/ProxySaveMappingSettings.cs

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

src/WireMock.Net/Settings/SimpleCommandLineParser.cs

@@ -32,7 +32,7 @@ internal class SimpleCommandLineParser
             }
             else if (string.IsNullOrEmpty(currentName))
             {
-                Arguments[arg] = new string[0];
+                Arguments[arg] = EmptyArray<string>.Value;
             }
             else
             {

src/WireMock.Net/Settings/WireMockServerSettings.cs

@@ -182,13 +182,13 @@ public class WireMockServerSettings
     public bool? AllowCSharpCodeMatcher { get; set; }
 
     /// <summary>
-    /// Allow a Body for all HTTP Methods. (default set to false).
+    /// Allow a Body for all HTTP Methods. (default set to <c>false</c>).
     /// </summary>
     [PublicAPI]
     public bool? AllowBodyForAllHttpMethods { get; set; }
 
     /// <summary>
-    /// Allow only a HttpStatus Code in the response which is defined. (default set to false).
+    /// Allow only a HttpStatus Code in the response which is defined. (default set to <c>false</c>).
     /// - false : also null, 0, empty or invalid HttpStatus codes are allowed.
     /// - true  : only codes defined in <see cref="System.Net.HttpStatusCode"/> are allowed.
     /// </summary>
@@ -196,25 +196,31 @@ public class WireMockServerSettings
     public bool? AllowOnlyDefinedHttpStatusCodeInResponse { get; set; }
 
     /// <summary>
-    /// Set to true to disable Json deserialization when processing requests. (default set to false).
+    /// Set to true to disable Json deserialization when processing requests. (default set to <c>false</c>).
     /// </summary>
     [PublicAPI]
     public bool? DisableJsonBodyParsing { get; set; }
 
     /// <summary>
-    /// Disable support for GZip and Deflate request body decompression. (default set to false).
+    /// Disable support for GZip and Deflate request body decompression. (default set to <c>false</c>).
     /// </summary>
     [PublicAPI]
     public bool? DisableRequestBodyDecompressing { get; set; }
 
     /// <summary>
-    /// Handle all requests synchronously. (default set to false).
+    /// Set to true to disable FormUrlEncoded deserializing when processing requests. (default set to <c>false</c>).
+    /// </summary>
+    [PublicAPI]
+    public bool? DisableDeserializeFormUrlEncoded { get; set; }
+
+    /// <summary>
+    /// Handle all requests synchronously. (default set to <c>false</c>).
     /// </summary>
     [PublicAPI]
     public bool? HandleRequestsSynchronously { get; set; }
 
     /// <summary>
-    /// Throw an exception when the <see cref="IMatcher"/> fails because of invalid input. (default set to false).
+    /// Throw an exception when the <see cref="IMatcher"/> fails because of invalid input. (default set to <c>false</c>).
     /// </summary>
     [PublicAPI]
     public bool? ThrowExceptionWhenMatcherFails { get; set; }
@@ -255,19 +261,19 @@ public class WireMockServerSettings
     public WebhookSettings? WebhookSettings { get; set; }
 
     /// <summary>
-    /// Use the <see cref="RegexExtended"/> instead of the default <see cref="Regex"/> (default set to true).
+    /// Use the <see cref="RegexExtended"/> instead of the default <see cref="Regex"/> (default set to <c>true</c>).
     /// </summary>
     [PublicAPI]
     public bool? UseRegexExtended { get; set; } = true;
 
     /// <summary>
-    /// Save unmatched requests to a file using the <see cref="IFileSystemHandler"/> (default set to false).
+    /// Save unmatched requests to a file using the <see cref="IFileSystemHandler"/> (default set to <c>false</c>).
     /// </summary>
     [PublicAPI]
     public bool? SaveUnmatchedRequests { get; set; }
 
     /// <summary>
-    /// Don't save the response-string in the LogEntry when WithBody(Func{IRequestMessage, string}) or WithBody(Func{IRequestMessage, Task{string}}) is used. (default set to false).
+    /// Don't save the response-string in the LogEntry when WithBody(Func{IRequestMessage, string}) or WithBody(Func{IRequestMessage, Task{string}}) is used. (default set to <c>false</c>).
     /// </summary>
     [PublicAPI]
     public bool? DoNotSaveDynamicResponseInLogEntry { get; set; }

src/WireMock.Net/Settings/WireMockServerSettingsParser.cs

@@ -46,6 +46,8 @@ public static class WireMockServerSettingsParser
             AllowOnlyDefinedHttpStatusCodeInResponse = parser.GetBoolValue("AllowOnlyDefinedHttpStatusCodeInResponse"),
             AllowPartialMapping = parser.GetBoolValue("AllowPartialMapping"),
             DisableJsonBodyParsing = parser.GetBoolValue("DisableJsonBodyParsing"),
+            DisableRequestBodyDecompressing = parser.GetBoolValue(nameof(WireMockServerSettings.DisableRequestBodyDecompressing)),
+            DisableDeserializeFormUrlEncoded = parser.GetBoolValue(nameof(WireMockServerSettings.DisableDeserializeFormUrlEncoded)),
             HandleRequestsSynchronously = parser.GetBoolValue("HandleRequestsSynchronously"),
             MaxRequestLogCount = parser.GetIntValue("MaxRequestLogCount"),
             ReadStaticMappings = parser.GetBoolValue("ReadStaticMappings"),
@@ -111,7 +113,12 @@ public static class WireMockServerSettingsParser
                 SaveMappingToFile = parser.GetBoolValue("SaveMappingToFile"),
                 UseDefinedRequestMatchers = parser.GetBoolValue(nameof(ProxyAndRecordSettings.UseDefinedRequestMatchers)),
                 AppendGuidToSavedMappingFile = parser.GetBoolValue(nameof(ProxyAndRecordSettings.AppendGuidToSavedMappingFile)),
-                Url = proxyUrl!
+                Url = proxyUrl!,
+                SaveMappingSettings = new ProxySaveMappingSettings
+                {
+                    StatusCodePattern = parser.GetStringValue("SaveMappingForStatusCodePattern", "*"),
+                    // HttpMethods = new ProxySaveMappingSetting<string[]>(parser.GetValues("DoNotSaveMappingForHttpMethods", new string[0]), MatchBehaviour.RejectOnMatch)
+                }
             };
 
             string? proxyAddress = parser.GetStringValue("WebProxyAddress");

src/WireMock.Net/Transformers/TransformModel.cs

@@ -10,4 +10,6 @@ internal struct TransformModel
     public IRequestMessage request { get; set; }
 
     public IResponseMessage? response { get; set; }
+
+    public object data { get; set; }
 }

src/WireMock.Net/Transformers/Transformer.cs

@@ -5,6 +5,7 @@ using System.Linq;
 using Newtonsoft.Json;
 using Newtonsoft.Json.Linq;
 using Stef.Validation;
+using WireMock.ResponseBuilders;
 using WireMock.Settings;
 using WireMock.Types;
 using WireMock.Util;
@@ -84,7 +85,7 @@ internal class Transformer : ITransformer
         {
             responseMessage.BodyData = TransformBodyData(transformerContext, options, model, original.BodyData, useTransformerForBodyAsFile);
 
-            if (original.BodyData.DetectedBodyType == BodyType.String)
+            if (original.BodyData.DetectedBodyType is BodyType.String or BodyType.FormUrlEncoded)
             {
                 responseMessage.BodyOriginal = original.BodyData.BodyAsString;
             }
@@ -115,19 +116,28 @@ internal class Transformer : ITransformer
         {
             mapping = mapping,
             request = request,
-            response = response
+            response = response,
+            data = mapping.Data ?? new { }
         });
     }
 
     private IBodyData? TransformBodyData(ITransformerContext transformerContext, ReplaceNodeOptions options, TransformModel model, IBodyData original, bool useTransformerForBodyAsFile)
     {
-        return original.DetectedBodyType switch
+        switch (original.DetectedBodyType)
         {
-            BodyType.Json => TransformBodyAsJson(transformerContext, options, model, original),
-            BodyType.File => TransformBodyAsFile(transformerContext, model, original, useTransformerForBodyAsFile),
-            BodyType.String => TransformBodyAsString(transformerContext, model, original),
-            _ => null
-        };
+            case BodyType.Json:
+                return TransformBodyAsJson(transformerContext, options, model, original);
+
+            case BodyType.File:
+                return TransformBodyAsFile(transformerContext, model, original, useTransformerForBodyAsFile);
+
+            case BodyType.String:
+            case BodyType.FormUrlEncoded:
+                return TransformBodyAsString(transformerContext, model, original);
+
+            default:
+                return null;
+        }
     }
 
     private static IDictionary<string, WireMockList<string>> TransformHeaders(ITransformerContext transformerContext, TransformModel model, IDictionary<string, WireMockList<string>>? original)

src/WireMock.Net/Util/BodyParser.cs

@@ -49,12 +49,14 @@ internal static class BodyParser
         new WildcardMatcher("application/vnd.*+json", true)
     };
 
+    private static readonly IStringMatcher FormUrlEncodedMatcher = new WildcardMatcher("application/x-www-form-urlencoded", true);
+
     private static readonly IStringMatcher[] TextContentTypeMatchers =
     {
         new WildcardMatcher("text/*", true),
         new RegexMatcher("^application\\/(java|type)script$", true),
         new WildcardMatcher("application/*xml", true),
-        new WildcardMatcher("application/x-www-form-urlencoded", true)
+        FormUrlEncodedMatcher
     };
 
     public static bool ShouldParseBody(string? httpMethod, bool allowBodyForAllHttpMethods)
@@ -69,7 +71,7 @@ internal static class BodyParser
             return true;
         }
 
-        if (BodyAllowedForMethods.TryGetValue(httpMethod!.ToUpper(), out bool allowed))
+        if (BodyAllowedForMethods.TryGetValue(httpMethod!.ToUpper(), out var allowed))
         {
             return allowed;
         }
@@ -88,6 +90,11 @@ internal static class BodyParser
             return BodyType.Bytes;
         }
 
+        if (MatchScores.IsPerfect(FormUrlEncodedMatcher.IsMatch(contentType.MediaType)))
+        {
+            return BodyType.FormUrlEncoded;
+        }
+
         if (TextContentTypeMatchers.Any(matcher => MatchScores.IsPerfect(matcher.IsMatch(contentType.MediaType))))
         {
             return BodyType.String;
@@ -133,13 +140,30 @@ internal static class BodyParser
             return data;
         }
 
-        // Try to get the body as String or Json
+        // Try to get the body as String, FormUrlEncoded or Json
         try
         {
             data.BodyAsString = DefaultEncoding.GetString(data.BodyAsBytes);
             data.Encoding = DefaultEncoding;
             data.DetectedBodyType = BodyType.String;
 
+            // If string is not null or empty, try to deserialize the string to a IDictionary<string, string>
+            if (settings.DeserializeFormUrlEncoded &&
+                data.DetectedBodyTypeFromContentType == BodyType.FormUrlEncoded &&
+                QueryStringParser.TryParse(data.BodyAsString, false, out var nameValueCollection)
+            )
+            {
+                try
+                {
+                    data.BodyAsFormUrlEncoded = nameValueCollection;
+                    data.DetectedBodyType = BodyType.FormUrlEncoded;
+                }
+                catch
+                {
+                    // Deserialize FormUrlEncoded failed, just ignore.
+                }
+            }
+
             // If string is not null or empty, try to deserialize the string to a JObject
             if (settings.DeserializeJson && !string.IsNullOrEmpty(data.BodyAsString))
             {

src/WireMock.Net/Util/BodyParserSettings.cs

@@ -13,4 +13,6 @@ internal class BodyParserSettings
     public bool DecompressGZipAndDeflate { get; set; } = true;
 
     public bool DeserializeJson { get; set; } = true;
+
+    public bool DeserializeFormUrlEncoded { get; set; } = true;
 }

src/WireMock.Net/Util/HttpStatusRangeParser.cs

@@ -16,18 +16,14 @@ internal static class HttpStatusRangeParser
     /// <param name="pattern">The pattern. (Can be null, in that case it's allowed.)</param>
     /// <param name="httpStatusCode">The value.</param>
     /// <exception cref="ArgumentException"><paramref name="pattern"/> is invalid.</exception>
-    public static bool IsMatch(string pattern, object? httpStatusCode)
+    public static bool IsMatch(string? pattern, object? httpStatusCode)
     {
-        switch (httpStatusCode)
+        return httpStatusCode switch
         {
-            case int statusCodeAsInteger:
-                return IsMatch(pattern, statusCodeAsInteger);
-
-            case string statusCodeAsString:
-                return IsMatch(pattern, int.Parse(statusCodeAsString));
-        }
-
-        return false;
+            int statusCodeAsInteger => IsMatch(pattern, statusCodeAsInteger),
+            string statusCodeAsString => IsMatch(pattern, int.Parse(statusCodeAsString)),
+            _ => false
+        };
     }
 
     /// <summary>

src/WireMock.Net/Util/JsonUtils.cs

@@ -1,7 +1,5 @@
 using System;
-using System.Collections.Generic;
 using System.Diagnostics.CodeAnalysis;
-using System.Linq;
 using System.Text;
 using Newtonsoft.Json;
 using Newtonsoft.Json.Linq;
@@ -11,38 +9,6 @@ namespace WireMock.Util;
 
 internal static class JsonUtils
 {
-    public static Type CreateTypeFromJObject(JObject instance, string? fullName = null)
-    {
-        static Type ConvertType(JToken value, string? propertyName = null)
-        {
-            var type = value.Type;
-            return type switch
-            {
-                JTokenType.Array => value.HasValues ? ConvertType(value.First!, propertyName).MakeArrayType() : typeof(object).MakeArrayType(),
-                JTokenType.Boolean => typeof(bool),
-                JTokenType.Bytes => typeof(byte[]),
-                JTokenType.Date => typeof(DateTime),
-                JTokenType.Guid => typeof(Guid),
-                JTokenType.Float => typeof(float),
-                JTokenType.Integer => typeof(long),
-                JTokenType.Null => typeof(object),
-                JTokenType.Object => CreateTypeFromJObject((JObject)value, propertyName),
-                JTokenType.String => typeof(string),
-                JTokenType.TimeSpan => typeof(TimeSpan),
-                JTokenType.Uri => typeof(string),
-                _ => typeof(object)
-            };
-        }
-
-        var properties = new Dictionary<string, Type>();
-        foreach (var item in instance.Properties())
-        {
-            properties.Add(item.Name, ConvertType(item.Value, item.Name));
-        }
-
-        return TypeBuilderUtils.BuildType(properties, fullName) ?? throw new InvalidOperationException();
-    }
-
     public static bool TryParseAsJObject(string? strInput, [NotNullWhen(true)] out JObject? value)
     {
         value = null;
@@ -140,100 +106,4 @@ internal static class JsonUtils
             _ => throw new NotSupportedException($"Unable to convert value to {typeof(T)}.")
         };
     }
-
-    public static string GenerateDynamicLinqStatement(JToken jsonObject)
-    {
-        var lines = new List<string>();
-        WalkNode(jsonObject, null, null, lines);
-
-        return lines.First();
-    }
-
-    private static void WalkNode(JToken node, string? path, string? propertyName, List<string> lines)
-    {
-        switch (node.Type)
-        {
-            case JTokenType.Object:
-                ProcessObject(node, propertyName, lines);
-                break;
-
-            case JTokenType.Array:
-                ProcessArray(node, propertyName, lines);
-                break;
-
-            default:
-                ProcessItem(node, path ?? "it", propertyName, lines);
-                break;
-        }
-    }
-
-    private static void ProcessObject(JToken node, string? propertyName, List<string> lines)
-    {
-        var items = new List<string>();
-        var text = new StringBuilder("new (");
-
-        // In case of Object, loop all children. Do a ToArray() to avoid `Collection was modified` exceptions.
-        foreach (var child in node.Children<JProperty>().ToArray())
-        {
-            WalkNode(child.Value, child.Path, child.Name, items);
-        }
-
-        text.Append(string.Join(", ", items));
-        text.Append(")");
-
-        if (!string.IsNullOrEmpty(propertyName))
-        {
-            text.AppendFormat(" as {0}", propertyName);
-        }
-
-        lines.Add(text.ToString());
-    }
-
-    private static void ProcessArray(JToken node, string? propertyName, List<string> lines)
-    {
-        var items = new List<string>();
-        var text = new StringBuilder("(new [] { ");
-
-        // In case of Array, loop all items. Do a ToArray() to avoid `Collection was modified` exceptions.
-        var idx = 0;
-        foreach (var child in node.Children().ToArray())
-        {
-            WalkNode(child, $"{node.Path}[{idx}]", null, items);
-            idx++;
-        }
-
-        text.Append(string.Join(", ", items));
-        text.Append("})");
-
-        if (!string.IsNullOrEmpty(propertyName))
-        {
-            text.AppendFormat(" as {0}", propertyName);
-        }
-
-        lines.Add(text.ToString());
-    }
-
-    private static void ProcessItem(JToken node, string path, string? propertyName, List<string> lines)
-    {
-        var castText = node.Type switch
-        {
-            JTokenType.Boolean => $"bool({path})",
-            JTokenType.Date => $"DateTime({path})",
-            JTokenType.Float => $"double({path})",
-            JTokenType.Guid => $"Guid({path})",
-            JTokenType.Integer => $"long({path})",
-            JTokenType.Null => "null",
-            JTokenType.String => $"string({path})",
-            JTokenType.TimeSpan => $"TimeSpan({path})",
-            JTokenType.Uri => $"Uri({path})",
-            _ => throw new NotSupportedException($"JTokenType '{node.Type}' cannot be converted to a Dynamic Linq cast operator.")
-        };
-
-        if (!string.IsNullOrEmpty(propertyName))
-        {
-            castText += $" as {propertyName}";
-        }
-
-        lines.Add(castText);
-    }
 }

src/WireMock.Net/Util/QueryStringParser.cs

@@ -1,7 +1,8 @@
 using System;
-using System.Net;
 using System.Collections.Generic;
+using System.Diagnostics.CodeAnalysis;
 using System.Linq;
+using System.Net;
 using WireMock.Types;
 
 namespace WireMock.Util;
@@ -13,6 +14,31 @@ internal static class QueryStringParser
 {
     private static readonly Dictionary<string, WireMockList<string>> Empty = new();
 
+    public static bool TryParse(string? queryString, bool caseIgnore, [NotNullWhen(true)] out IDictionary<string, string>? nameValueCollection)
+    {
+        if (queryString is null)
+        {
+            nameValueCollection = default;
+            return false;
+        }
+
+        var parts = queryString!
+            .Split(new[] { "&" }, StringSplitOptions.RemoveEmptyEntries)
+            .Select(parameter => parameter.Split('='))
+            .Distinct();
+
+        nameValueCollection = caseIgnore ? new Dictionary<string, string>(StringComparer.OrdinalIgnoreCase) : new Dictionary<string, string>();
+        foreach (var part in parts)
+        {
+            if (part.Length == 2)
+            {
+                nameValueCollection.Add(part[0], WebUtility.UrlDecode(part[1]));
+            }
+        }
+
+        return true;
+    }
+
     public static IDictionary<string, WireMockList<string>> Parse(string? queryString, QueryParameterMultipleValueSupport? support = null)
     {
         if (string.IsNullOrEmpty(queryString))

src/WireMock.Net/Util/RegexUtils.cs

@@ -36,14 +36,12 @@ internal static class RegexUtils
         {
             if (useRegexExtended)
             {
-                var r = new RegexExtended(pattern, RegexOptions.None, RegexTimeOut);
-                return (true, r.IsMatch(input));
-            }
-            else
-            {
-                var r = new Regex(pattern, RegexOptions.None, RegexTimeOut);
-                return (true, r.IsMatch(input));
+                var regexExtended = new RegexExtended(pattern, RegexOptions.None, RegexTimeOut);
+                return (true, regexExtended.IsMatch(input));
             }
+
+            var regex = new Regex(pattern, RegexOptions.None, RegexTimeOut);
+            return (true, regex.IsMatch(input));
         }
         catch
         {

src/WireMock.Net/Util/TypeBuilderUtils.cs

@@ -1,119 +0,0 @@
-using System;
-using System.Collections.Concurrent;
-using System.Collections.Generic;
-using System.Linq;
-using System.Reflection;
-using System.Reflection.Emit;
-
-namespace WireMock.Util;
-
-/// <summary>
-/// Code based on https://stackoverflow.com/questions/40507909/convert-jobject-to-anonymous-object
-/// </summary>
-internal static class TypeBuilderUtils
-{
-    private static readonly ConcurrentDictionary<IDictionary<string, Type>, Type> Types = new();
-
-    private static readonly ModuleBuilder ModuleBuilder = AssemblyBuilder
-            .DefineDynamicAssembly(new AssemblyName("WireMock.Net.Reflection"), AssemblyBuilderAccess.Run)
-            .DefineDynamicModule("WireMock.Net.Reflection.Module");
-
-    public static Type BuildType(IDictionary<string, Type> properties, string? name = null)
-    {
-        var keyExists = Types.Keys.FirstOrDefault(k => Compare(k, properties));
-        if (keyExists != null)
-        {
-            return Types[keyExists];
-        }
-
-        var typeBuilder = GetTypeBuilder(name ?? Guid.NewGuid().ToString());
-        foreach (var property in properties)
-        {
-            CreateGetSetMethods(typeBuilder, property.Key, property.Value);
-        }
-
-        var type = typeBuilder.CreateTypeInfo()!.AsType();
-
-        Types.TryAdd(properties, type);
-
-        return type;
-    }
-
-    /// <summary>
-    /// https://stackoverflow.com/questions/3804367/testing-for-equality-between-dictionaries-in-c-sharp
-    /// </summary>
-    private static bool Compare<TKey, TValue>(IDictionary<TKey, TValue> dict1, IDictionary<TKey, TValue> dict2)
-        where TKey : notnull
-    {
-        if (dict1 == dict2)
-        {
-            return true;
-        }
-
-        if (dict1.Count != dict2.Count)
-        {
-            return false;
-        }
-
-        var valueComparer = EqualityComparer<TValue>.Default;
-
-        foreach (var kvp in dict1)
-        {
-            if (!dict2.TryGetValue(kvp.Key, out var value2))
-            {
-                return false;
-            }
-
-            if (!valueComparer.Equals(kvp.Value, value2))
-            {
-                return false;
-            }
-        }
-
-        return true;
-    }
-
-    private static TypeBuilder GetTypeBuilder(string name)
-    {
-        return ModuleBuilder.DefineType(name,
-            TypeAttributes.Public |
-            TypeAttributes.Class |
-            TypeAttributes.AutoClass |
-            TypeAttributes.AnsiClass |
-            TypeAttributes.BeforeFieldInit |
-            TypeAttributes.AutoLayout,
-            null);
-    }
-
-    private static void CreateGetSetMethods(TypeBuilder typeBuilder, string propertyName, Type propertyType)
-    {
-        var fieldBuilder = typeBuilder.DefineField("_" + propertyName, propertyType, FieldAttributes.Private);
-
-        var propertyBuilder = typeBuilder.DefineProperty(propertyName, PropertyAttributes.HasDefault, propertyType, null);
-
-        var getPropertyMethodBuilder = typeBuilder.DefineMethod("get_" + propertyName, MethodAttributes.Public | MethodAttributes.SpecialName | MethodAttributes.HideBySig, propertyType, Type.EmptyTypes);
-        var getIl = getPropertyMethodBuilder.GetILGenerator();
-
-        getIl.Emit(OpCodes.Ldarg_0);
-        getIl.Emit(OpCodes.Ldfld, fieldBuilder);
-        getIl.Emit(OpCodes.Ret);
-
-        var setPropertyMethodBuilder = typeBuilder.DefineMethod("set_" + propertyName, MethodAttributes.Public | MethodAttributes.SpecialName | MethodAttributes.HideBySig, null, new[] { propertyType });
-        var setIl = setPropertyMethodBuilder.GetILGenerator();
-        var modifyProperty = setIl.DefineLabel();
-
-        var exitSet = setIl.DefineLabel();
-
-        setIl.MarkLabel(modifyProperty);
-        setIl.Emit(OpCodes.Ldarg_0);
-        setIl.Emit(OpCodes.Ldarg_1);
-        setIl.Emit(OpCodes.Stfld, fieldBuilder);
-
-        setIl.Emit(OpCodes.Nop);
-        setIl.MarkLabel(exitSet);
-        setIl.Emit(OpCodes.Ret);
-
-        propertyBuilder.SetGetMethod(getPropertyMethodBuilder);
-        propertyBuilder.SetSetMethod(setPropertyMethodBuilder);
-    }
-}

src/WireMock.Net/Validation/ValidatedNotNullAttribute.cs

@@ -1,11 +0,0 @@
-using System;
-
-namespace WireMock.Validation
-{
-    /// <summary>
-    /// To fix 'xxx' is null on at least one execution path. See also https://rules.sonarsource.com/csharp/RSPEC-3900.
-    /// </summary>
-    internal class ValidatedNotNullAttribute : Attribute
-    {
-    }
-}

src/WireMock.Net/WireMock.Net.csproj

@@ -53,13 +53,12 @@
 
     <ItemGroup>
         <PackageReference Include="JetBrains.Annotations" Version="2022.3.1" PrivateAssets="All" />
-        <PackageReference Include="JsonConverter.Abstractions" Version="0.3.0" />
+        <PackageReference Include="JsonConverter.Abstractions" Version="0.4.0" />
         <PackageReference Include="Microsoft.SourceLink.GitHub" Version="1.1.1" PrivateAssets="All" />
         <PackageReference Include="Newtonsoft.Json" Version="13.0.1" />
         <PackageReference Include="NJsonSchema.Extensions" Version="0.1.0" />
         <PackageReference Include="NSwag.Core" Version="13.16.1" />
         <PackageReference Include="SimMetrics.Net" Version="1.0.5" />
-        <PackageReference Include="System.Linq.Dynamic.Core" Version="1.2.23" />
         <PackageReference Include="JmesPath.Net" Version="1.0.125" />
         <PackageReference Include="AnyOf" Version="0.3.0" />
         <PackageReference Include="TinyMapper" Version="3.0.3" />
@@ -177,13 +176,13 @@
     </ItemGroup>
 
     <ItemGroup>
-        <PackageReference Include="Handlebars.Net.Helpers" Version="2.3.12" />
-        <PackageReference Include="Handlebars.Net.Helpers.DynamicLinq" Version="2.3.12" />
-        <PackageReference Include="Handlebars.Net.Helpers.Humanizer" Version="2.3.12" />
-        <PackageReference Include="Handlebars.Net.Helpers.Json" Version="2.3.12" />
-        <PackageReference Include="Handlebars.Net.Helpers.Random" Version="2.3.12" />
-        <PackageReference Include="Handlebars.Net.Helpers.XPath" Version="2.3.12" />
-        <PackageReference Include="Handlebars.Net.Helpers.Xeger" Version="2.3.12" />
+        <PackageReference Include="Handlebars.Net.Helpers" Version="2.3.15" />
+        <PackageReference Include="Handlebars.Net.Helpers.DynamicLinq" Version="2.3.15" />
+        <PackageReference Include="Handlebars.Net.Helpers.Humanizer" Version="2.3.15" />
+        <PackageReference Include="Handlebars.Net.Helpers.Json" Version="2.3.15" />
+        <PackageReference Include="Handlebars.Net.Helpers.Random" Version="2.3.15" />
+        <PackageReference Include="Handlebars.Net.Helpers.XPath" Version="2.3.15" />
+        <PackageReference Include="Handlebars.Net.Helpers.Xeger" Version="2.3.15" />
     </ItemGroup>
 
     <ItemGroup>

test/WireMock.Net.Tests/Matchers/JmesPathMatcherTests.cs

@@ -1,3 +1,4 @@
+using System;
 using Newtonsoft.Json.Linq;
 using NFluent;
 using WireMock.Matchers;
@@ -37,7 +38,7 @@ public class JmesPathMatcherTests
     public void JmesPathMatcher_IsMatch_ByteArray()
     {
         // Assign
-        var bytes = new byte[0];
+        var bytes = EmptyArray<byte>.Value;
         var matcher = new JmesPathMatcher("");
 
         // Act 

test/WireMock.Net.Tests/Matchers/JsonMatcherTests.cs

@@ -111,7 +111,7 @@ public class JsonMatcherTests
     public void JsonMatcher_IsMatch_ByteArray()
     {
         // Assign
-        var bytes = new byte[0];
+        var bytes = EmptyArray<byte>.Value;
         var matcher = new JsonMatcher("");
 
         // Act 

test/WireMock.Net.Tests/Matchers/JsonPartialMatcherTests.cs

@@ -89,7 +89,7 @@ public class JsonPartialMatcherTests
     public void JsonPartialMatcher_IsMatch_ByteArray()
     {
         // Assign
-        var bytes = new byte[0];
+        var bytes = EmptyArray<byte>.Value;
         var matcher = new JsonPartialMatcher("");
 
         // Act 

test/WireMock.Net.Tests/Matchers/JsonPartialWildcardMatcherTests.cs

@@ -89,7 +89,7 @@ public class JsonPartialWildcardMatcherTests
     public void JsonPartialWildcardMatcher_IsMatch_ByteArray()
     {
         // Assign
-        var bytes = new byte[0];
+        var bytes = EmptyArray<byte>.Value;
         var matcher = new JsonPartialWildcardMatcher("");
 
         // Act 

test/WireMock.Net.Tests/Matchers/JsonPathMatcherTests.cs

@@ -1,3 +1,4 @@
+using System;
 using Newtonsoft.Json.Linq;
 using NFluent;
 using WireMock.Matchers;
@@ -37,7 +38,7 @@ public class JsonPathMatcherTests
     public void JsonPathMatcher_IsMatch_ByteArray()
     {
         // Assign
-        var bytes = new byte[0];
+        var bytes = EmptyArray<byte>.Value;
         var matcher = new JsonPathMatcher("");
 
         // Act 

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);
+        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);
         _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);
+        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);
         _mappingMock.Setup(m => m.ProvideResponseAsync(It.IsAny<RequestMessage>())).ReturnsAsync((new ResponseMessage(), newMappingFromProxy));
 
         var requestBuilder = Request.Create().UsingAnyMethod();

test/WireMock.Net.Tests/RequestMatchers/RequestMessageBodyMatcherTests.cs

@@ -431,7 +431,7 @@ public class RequestMessageBodyMatcherTests
                 // JSON match +++
                 {json, new RequestMessageBodyMatcher((object? o) => ((dynamic) o!).a == "b"), true},
                 {json, new RequestMessageBodyMatcher((string? s) => s == json), true},
-                {json, new RequestMessageBodyMatcher((byte[]? b) => b.SequenceEqual(Encoding.UTF8.GetBytes(json))), true},
+                {json, new RequestMessageBodyMatcher((byte[]? b) => b?.SequenceEqual(Encoding.UTF8.GetBytes(json)) == true), true},
                 
                 // JSON no match ---
                 {json, new RequestMessageBodyMatcher((object? o) => false), false},
@@ -442,7 +442,7 @@ public class RequestMessageBodyMatcherTests
                 // string match +++
                 {str, new RequestMessageBodyMatcher((object? o) => o == null), true},
                 {str, new RequestMessageBodyMatcher((string? s) => s == str), true},
-                {str, new RequestMessageBodyMatcher((byte[]? b) => b.SequenceEqual(Encoding.UTF8.GetBytes(str))), true},
+                {str, new RequestMessageBodyMatcher((byte[]? b) => b?.SequenceEqual(Encoding.UTF8.GetBytes(str)) == true), true},
 
                 // string no match ---
                 {str, new RequestMessageBodyMatcher((object? o) => false), false},
@@ -453,13 +453,13 @@ public class RequestMessageBodyMatcherTests
                 // binary match +++
                 {bytes, new RequestMessageBodyMatcher((object? o) => o == null), true},
                 {bytes, new RequestMessageBodyMatcher((string? s) => s == null), true},
-                {bytes, new RequestMessageBodyMatcher((byte[]? b) => b.SequenceEqual(bytes)), true},
+                {bytes, new RequestMessageBodyMatcher((byte[]? b) => b?.SequenceEqual(bytes) == true), true},
 
                 // binary no match ---
                 {bytes, new RequestMessageBodyMatcher((object? o) => false), false},
                 {bytes, new RequestMessageBodyMatcher((string? s) => false), false},
                 {bytes, new RequestMessageBodyMatcher((byte[]? b) => false), false},
-                {bytes, new RequestMessageBodyMatcher(), false },
+                {bytes, new RequestMessageBodyMatcher(), false }
             };
         }
     }

test/WireMock.Net.Tests/RequestWithBodyTests.cs

@@ -1,6 +1,9 @@
 using System;
+using System.Collections.Generic;
 using System.Text;
 using FluentAssertions;
+using JsonConverter.Abstractions;
+using Moq;
 using Newtonsoft.Json;
 using NFluent;
 using WireMock.Matchers;
@@ -55,11 +58,31 @@ namespace WireMock.Net.Tests
             Check.That(requestBuilder.GetMatchingScore(request, requestMatchResult)).IsEqualTo(1.0);
         }
 
+        [Fact]
+        public void Request_WithBody_FuncFormUrlEncoded()
+        {
+            // Assign
+            var requestBuilder = Request.Create().UsingAnyMethod().WithBody((IDictionary<string, string>? values) => values != null);
+
+            // Act
+            var body = new BodyData
+            {
+                BodyAsFormUrlEncoded = new Dictionary<string, string>(),
+                DetectedBodyTypeFromContentType = BodyType.FormUrlEncoded,
+                DetectedBodyType = BodyType.FormUrlEncoded
+            };
+            var request = new RequestMessage(new UrlDetails("http://localhost/foo"), "POST", ClientIp, body);
+
+            // Assert
+            var requestMatchResult = new RequestMatchResult();
+            Check.That(requestBuilder.GetMatchingScore(request, requestMatchResult)).IsEqualTo(1.0);
+        }
+
         [Fact]
         public void Request_WithBody_FuncBodyData()
         {
             // Assign
-            var requestBuilder = Request.Create().UsingAnyMethod().WithBody((IBodyData b) => b != null);
+            var requestBuilder = Request.Create().UsingAnyMethod().WithBody((IBodyData? b) => b != null);
 
             // Act
             var body = new BodyData
@@ -78,7 +101,7 @@ namespace WireMock.Net.Tests
         public void Request_WithBody_FuncByteArray()
         {
             // Assign
-            var requestBuilder = Request.Create().UsingAnyMethod().WithBody((byte[] b) => b != null);
+            var requestBuilder = Request.Create().UsingAnyMethod().WithBody((byte[]? b) => b != null);
 
             // Act
             var body = new BodyData
@@ -113,7 +136,7 @@ namespace WireMock.Net.Tests
         }
 
         [Fact]
-        public void Request_BodyAsString_Using_WildcardMatcher()
+        public void Request_WithBody_BodyDataAsString_Using_WildcardMatcher()
         {
             // Arrange
             var spec = Request.Create().WithPath("/foo").UsingAnyMethod().WithBody(new WildcardMatcher("H*o*"));
@@ -132,7 +155,7 @@ namespace WireMock.Net.Tests
         }
 
         [Fact]
-        public void Request_BodyAsJson_Using_WildcardMatcher()
+        public void Request_WithBody_BodyDataAsJson_Using_WildcardMatcher()
         {
             // Arrange
             var spec = Request.Create().WithPath("/foo").UsingAnyMethod().WithBody(new WildcardMatcher("*Hello*"));
@@ -328,6 +351,56 @@ namespace WireMock.Net.Tests
             Check.That(requestBuilder.GetMatchingScore(request, requestMatchResult)).IsEqualTo(1.0);
         }
 
+        [Fact]
+        public void Request_WithBodyAsJson_UsingObject()
+        {
+            // Assign
+            object body = new
+            {
+                Test = "abc"
+            };
+            var requestBuilder = Request.Create().UsingAnyMethod().WithBodyAsJson(body);
+
+            var bodyData = new BodyData
+            {
+                BodyAsString = JsonConvert.SerializeObject(body),
+                DetectedBodyType = BodyType.String
+            };
+
+            // Act
+            var request = new RequestMessage(new UrlDetails("http://localhost/foo"), "POST", ClientIp, bodyData);
+
+            // Assert
+            var requestMatchResult = new RequestMatchResult();
+            Check.That(requestBuilder.GetMatchingScore(request, requestMatchResult)).IsEqualTo(1.0);
+        }
+
+        [Fact]
+        public void Request_WithBodyAsJson_WithIJsonConverter_UsingObject()
+        {
+            // Assign
+            var jsonConverterMock = new Mock<IJsonConverter>();
+            jsonConverterMock.Setup(j => j.Serialize(It.IsAny<object>(), It.IsAny<JsonConverterOptions>())).Returns("test");
+            object body = new
+            {
+                Any = "key"
+            };
+            var requestBuilder = Request.Create().UsingAnyMethod().WithBodyAsJson(body, jsonConverterMock.Object);
+
+            var bodyData = new BodyData
+            {
+                BodyAsString = "test",
+                DetectedBodyType = BodyType.String
+            };
+
+            // Act
+            var request = new RequestMessage(new UrlDetails("http://localhost/foo"), "POST", ClientIp, bodyData);
+
+            // Assert
+            var requestMatchResult = new RequestMatchResult();
+            Check.That(requestBuilder.GetMatchingScore(request, requestMatchResult)).IsEqualTo(1.0);
+        }
+
         [Theory]
         [InlineData(new byte[] { 1 }, BodyType.Bytes)]
         [InlineData(new byte[] { 48, 49, 50 }, BodyType.Bytes)]

test/WireMock.Net.Tests/ResponseBuilders/ResponseWithCallbackTests.cs

@@ -1,4 +1,5 @@
 using System.Collections.Generic;
+using System.Linq;
 using System.Net;
 using System.Text;
 using System.Threading.Tasks;
@@ -279,4 +280,38 @@ public class ResponseWithCallbackTests
         response.Message.BodyData.BodyAsString.Should().Be("/fooBar");
         response.Message.StatusCode.Should().Be(302);
     }
+
+    // https://github.com/WireMock-Net/WireMock.Net/issues/898
+    [Fact]
+    public async Task Response_WithCallback_WithRequestHeaders_Should_BeAccessibleInCallback()
+    {
+        // Assign
+        var headerKey = "headerKey";
+        var headerValues = new[] { "abc" };
+        var requestHeaders = new Dictionary<string, string[]>
+        {
+            { headerKey, headerValues }
+        };
+        var requestMessage = new RequestMessage(new UrlDetails("http://localhost/foo"), "GET", "::1", null, requestHeaders);
+        var responseBuilder = Response.Create()
+            .WithCallback(request =>
+            {
+                var headersFromRequest = request!.Headers![headerKey].ToList();
+                headersFromRequest.Add("extra");
+
+                return new ResponseMessage
+                {
+                    Headers = new Dictionary<string, WireMockList<string>>
+                    {
+                        { headerKey, new WireMockList<string>(headersFromRequest) }
+                    }
+                };
+            });
+
+        // Act
+        var response = await responseBuilder.ProvideResponseAsync(_mappingMock.Object, requestMessage, _settings).ConfigureAwait(false);
+
+        // Assert
+        response.Message.Headers![headerKey].Should().Contain("extra");
+    }
 }

test/WireMock.Net.Tests/ResponseBuilders/ResponseWithHandlebarsLinqTests.cs

@@ -163,22 +163,6 @@ public class ResponseWithHandlebarsLinqTests
         Check.ThatAsyncCode(() => responseBuilder.ProvideResponseAsync(mappingMock.Object, request, _settings)).Throws<ArgumentException>();
     }
 
-    [Fact]
-    public void Response_ProvideResponse_Handlebars_Linq1_Throws_ArgumentNullException()
-    {
-        // Assign
-        var body = new BodyData();
-
-        var request = new RequestMessage(new UrlDetails("http://localhost:1234"), "POST", "::1", body);
-
-        var responseBuilder = Response.Create()
-            .WithBodyAsJson(new { x = "{{Linq request.body 'Name'}}" })
-            .WithTransformer();
-
-        // Act
-        Check.ThatAsyncCode(() => responseBuilder.ProvideResponseAsync(mappingMock.Object, request, _settings)).Throws<ArgumentNullException>();
-    }
-
     [Fact]
     public void Response_ProvideResponse_Handlebars_Linq1_Throws_HandlebarsException()
     {

test/WireMock.Net.Tests/ResponseBuilders/ResponseWithTransformerTests.cs

@@ -782,4 +782,31 @@ public class ResponseWithTransformerTests
         response.Message.BodyData!.BodyAsString.Should().Be(text);
         response.Message.BodyData.Encoding.Should().Be(enc);
     }
+
+    [Theory]
+    [InlineData("/wiremock-data/1", "one")]
+    [InlineData("/wiremock-data/2", "two")]
+    [InlineData("/wiremock-data/3", "N/A")]
+    public async Task Response_ProvideResponse_Handlebars_DataObject(string path, string expected)
+    {
+        // Arrange
+        var request = new RequestMessage(new UrlDetails("https://localhost" + path), "POST", ClientIp);
+        var data = new Dictionary<string, object?>
+        {
+            { "1", "one" },
+            { "2", "two" }
+        };
+
+        var responseBuilder = Response.Create()
+            .WithBody("{{lookup data request.PathSegments.[1] 'N/A'}}")
+            .WithTransformer();
+
+        _mappingMock.SetupGet(m => m.Data).Returns(data);
+
+        // Act
+        var response = await responseBuilder.ProvideResponseAsync(_mappingMock.Object, request, _settings).ConfigureAwait(false);
+
+        // Assert
+        response.Message.BodyData!.BodyAsString.Should().Be(expected);
+    }
 }

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

@@ -119,7 +119,25 @@ public partial class MappingConverterTests
             .WithDelay(12345)
             .WithTransformer();
 
-        return new Mapping(guid, _updatedAt, string.Empty, string.Empty, null, _settings, request, response, 42, null, null, null, null, null, false, null);
+        return new Mapping(
+            guid,
+            _updatedAt,
+            string.Empty,
+            string.Empty,
+            null,
+            _settings,
+            request,
+            response,
+            42,
+            null,
+            null,
+            null,
+            null,
+            null,
+            false,
+            null,
+            data: null
+        );
     }
 }
 #endif

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);
+        var mapping = new Mapping(_guid, _updatedAt, string.Empty, string.Empty, null, _settings, request, response, 0, null, null, null, null, webhooks, false, null, data: 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);
+        var mapping = new Mapping(_guid, _updatedAt, string.Empty, string.Empty, null, _settings, request, response, 0, null, null, null, null, webhooks, true, null, data: 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);
+        var mapping = new Mapping(_guid, _updatedAt, title, description, null, _settings, request, response, 0, null, null, null, null, null, false, null, data: 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);
+        var mapping = new Mapping(_guid, _updatedAt, string.Empty, string.Empty, null, _settings, request, response, 42, null, null, null, null, null, false, null, data: 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);
+        var mapping = new Mapping(_guid, _updatedAt, string.Empty, string.Empty, null, _settings, request, response, 42, null, null, null, null, null, false, timeSettings, data: 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);
+            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);
 
             // 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);
+        var mapping = new Mapping(_guid, _updatedAt, string.Empty, string.Empty, null, _settings, request, response, 42, null, null, null, null, null, false, null, data: 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);
+        var mapping = new Mapping(_guid, _updatedAt, string.Empty, string.Empty, null, _settings, request, response, 42, null, null, null, null, null, false, null, data: 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);
+        var mapping = new Mapping(_guid, _updatedAt, string.Empty, string.Empty, null, _settings, request, response, 42, null, null, null, null, null, false, null, data: null);
 
         // Act
         var model = _sut.ToMappingModel(mapping);

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

@@ -1,6 +1,7 @@
 #if !(NET452 || NET461 || NETCOREAPP3_1)
 using System;
 using System.Threading.Tasks;
+using FluentAssertions;
 using Moq;
 using VerifyTests;
 using VerifyXunit;
@@ -70,7 +71,7 @@ public class ProxyMappingConverterTests
         var responseMessage = new ResponseMessage();
 
         // Act
-        var proxyMapping = _sut.ToMapping(mappingMock.Object, proxyAndRecordSettings, requestMessageMock.Object, responseMessage);
+        var proxyMapping = _sut.ToMapping(mappingMock.Object, proxyAndRecordSettings, requestMessageMock.Object, responseMessage)!;
 
         // Assert
         var model = _mappingConverter.ToMappingModel(proxyMapping);

test/WireMock.Net.Tests/Util/QueryStringParserTests.cs

@@ -1,5 +1,5 @@
-using FluentAssertions;
 using System.Collections.Generic;
+using FluentAssertions;
 using WireMock.Types;
 using WireMock.Util;
 using Xunit;
@@ -8,6 +8,51 @@ namespace WireMock.Net.Tests.Util;
 
 public class QueryStringParserTests
 {
+    public static IEnumerable<object?[]> QueryStringTestData => new List<object?[]>
+    {
+        new object?[] { null, false, false, null },
+        new object?[] { string.Empty, false, true, new Dictionary<string, string>() },
+        new object?[] { "test", false, true, new Dictionary<string, string>() },
+        new object?[] { "&", false, true, new Dictionary<string, string>() },
+        new object?[] { "&&", false, true, new Dictionary<string, string>() },
+        new object?[] { "a=", false, true, new Dictionary<string, string> { { "a", "" } } },
+        new object?[] { "&a", false, true, new Dictionary<string, string>() },
+        new object?[] { "&a=", false, true, new Dictionary<string, string> { { "a", "" } } },
+        new object?[] { "&key1=value1", false, true, new Dictionary<string, string> { { "key1", "value1" } } },
+        new object?[] { "key1=value1", false, true, new Dictionary<string, string> { { "key1", "value1" } } },
+        new object?[] { "key1=value1&key2=value2", false, true, new Dictionary<string, string> { { "key1", "value1" }, { "key2", "value2" } } },
+        new object?[] { "key1=value1&key2=value2&", false, true, new Dictionary<string, string> { { "key1", "value1" }, { "key2", "value2" } } },
+        new object?[] { "key1=value1&&key2=value2", false, true, new Dictionary<string, string> { { "key1", "value1" }, { "key2", "value2" } } },
+        new object?[] { "&key1=value1&key2=value2&&", false, true, new Dictionary<string, string> { { "key1", "value1" }, { "key2", "value2" } } },
+    };
+
+    [Theory]
+    [MemberData(nameof(QueryStringTestData))]
+    public void TryParse_Should_Parse_QueryString(string queryString, bool caseIgnore, bool expectedResult, IDictionary<string, string> expectedOutput)
+    {
+        // Act
+        var result = QueryStringParser.TryParse(queryString, caseIgnore, out var actual);
+
+        // Assert
+        result.Should().Be(expectedResult);
+        actual.Should().BeEquivalentTo(expectedOutput);
+    }
+
+    [Fact]
+    public void TryParse_Should_Parse_QueryStringWithUrlEncodedValues()
+    {
+        // Arrange
+        var key = "x";
+        var value = "rNaCP7hv8UOmS%2FJcujdvLw%3D%3D";
+
+        // Act
+        var result = QueryStringParser.TryParse($"{key}={value}", true, out var actual);
+
+        // Assert
+        result.Should().BeTrue();
+        actual.Should().BeEquivalentTo(new Dictionary<string, string> { { "x", "rNaCP7hv8UOmS/JcujdvLw==" } });
+    }
+
     [Fact]
     public void Parse_WithNullString()
     {

test/WireMock.Net.Tests/WireMock.Net.Tests.csproj

@@ -12,7 +12,7 @@
 
         <SignAssembly>true</SignAssembly>
         <AssemblyOriginatorKeyFile>../../src/WireMock.Net/WireMock.Net.snk</AssemblyOriginatorKeyFile>
-        <!--<DelaySign>true</DelaySign>-->
+
         <PublicSign Condition=" '$(OS)' != 'Windows_NT' ">true</PublicSign>
 
         <!--https://developercommunity.visualstudio.com/content/problem/26347/unit-tests-fail-with-fileloadexception-newtonsoftj-1.html-->
@@ -24,6 +24,10 @@
         <DefineConstants>NETFRAMEWORK</DefineConstants>
     </PropertyGroup>
 
+    <ItemGroup>
+      <Compile Remove="Util\JsonUtilsTests.cs" />
+    </ItemGroup>
+
     <ItemGroup>
         <!-- https://stackoverflow.com/questions/59406201/filenesting-not-working-for-class-or-shared-library-projects -->
         <ProjectCapability Include="ConfigurableFileNesting" />
@@ -59,12 +63,13 @@
         </PackageReference>
 
         <PackageReference Include="Moq" Version="4.17.2" />
+
+        <!--<PackageReference Include="System.Linq.Dynamic.Core" Version="1.3.1" />-->
         <PackageReference Include="System.Threading" Version="4.3.0" />
         <PackageReference Include="RestEase" Version="1.5.7" />
         <PackageReference Include="Newtonsoft.Json" Version="13.0.2" />
         <PackageReference Include="NFluent" Version="2.8.0" />
         <PackageReference Include="SimMetrics.Net" Version="1.0.5" />
-        <PackageReference Include="System.Linq.Dynamic.Core" Version="1.2.23" />
         <PackageReference Include="AnyOf" Version="0.3.0" />
     </ItemGroup>
 
@@ -93,7 +98,8 @@
 
     <ItemGroup Condition="'$(TargetFramework)' != 'net452'">
         <PackageReference Include="System.Net.Http.Json" Version="3.2.1" />
-        <PackageReference Include="JsonConverter.System.Text.Json" Version="0.3.0" />
+        <PackageReference Include="JsonConverter.System.Text.Json" Version="0.4.0" />
+        <!--<PackageReference Include="JsonConverter.NewtonSoft.Json" Version="0.4.0" />-->
     </ItemGroup>
 
     <ItemGroup>
@@ -113,8 +119,8 @@
             <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
         </None>
         <None Update="client_cert.pfx">
-          <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
-          <DependentUpon>WireMockServerTests.ClientCertificate.cs</DependentUpon>
+            <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+            <DependentUpon>WireMockServerTests.ClientCertificate.cs</DependentUpon>
         </None>
     </ItemGroup>
 
@@ -123,7 +129,7 @@
     </ItemGroup>
 
     <ItemGroup>
-      <Folder Include="Pact\files\" />
+        <Folder Include="Pact\files\" />
     </ItemGroup>
 
 </Project>

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

@@ -248,6 +248,45 @@ public class WireMockServerProxyTests
         fileSystemHandlerMock.Verify(f => f.WriteMappingFile(It.IsAny<string>(), It.IsAny<string>()), Times.Never);
     }
 
+    [Fact]
+    public async Task WireMockServer_Proxy_With_DoNotSaveMappingForHttpMethod_Should_Not_SaveMapping()
+    {
+        // Assign
+        var fileSystemHandlerMock = new Mock<IFileSystemHandler>();
+        fileSystemHandlerMock.Setup(f => f.GetMappingFolder()).Returns("m");
+
+        var settings = new WireMockServerSettings
+        {
+            ProxyAndRecordSettings = new ProxyAndRecordSettings
+            {
+                Url = "http://www.google.com",
+                SaveMapping = true,
+                SaveMappingToFile = true,
+                SaveMappingSettings = new ProxySaveMappingSettings
+                {
+                    HttpMethods = new ProxySaveMappingSetting<string[]>(new string[] { "GET" }, MatchBehaviour.RejectOnMatch) // To make sure that we don't want this mapping
+                }
+            },
+            FileSystemHandler = fileSystemHandlerMock.Object
+        };
+        var server = WireMockServer.Start(settings);
+
+        // Act
+        var requestMessage = new HttpRequestMessage
+        {
+            Method = HttpMethod.Get,
+            RequestUri = new Uri(server.Urls[0])
+        };
+        var httpClientHandler = new HttpClientHandler { AllowAutoRedirect = false };
+        await new HttpClient(httpClientHandler).SendAsync(requestMessage).ConfigureAwait(false);
+
+        // Assert
+        server.Mappings.Should().HaveCount(1);
+
+        // Verify
+        fileSystemHandlerMock.Verify(f => f.WriteMappingFile(It.IsAny<string>(), It.IsAny<string>()), Times.Never);
+    }
+
     [Fact]
     public async Task WireMockServer_Proxy_Should_log_proxied_requests()
     {

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

@@ -1,7 +1,9 @@
 #if !NET452
+//using System;
+using System.Collections.Generic;
 using System.Net;
 using System.Net.Http;
-using System.Net.Http.Json;
+//using System.Net.Http.Json;
 using System.Threading.Tasks;
 using FluentAssertions;
 using WireMock.Matchers;
@@ -10,61 +12,120 @@ using WireMock.ResponseBuilders;
 using WireMock.Server;
 using Xunit;
 
-namespace WireMock.Net.Tests
+namespace WireMock.Net.Tests;
+
+public partial class WireMockServerTests
 {
-    public partial class WireMockServerTests
+    public class DummyClass
     {
-        public class DummyClass
-        {
-            public string Hi { get; set; }
-        }
+        public string? Hi { get; set; }
+    }
 
-        [Fact]
-        public async Task WireMockServer_WithBodyAsJson_Using_PostAsJsonAsync_And_WildcardMatcher_ShouldMatch()
+    [Fact]
+    public async Task WireMockServer_WithBodyAsJson_Using_PostAsJsonAsync_And_WildcardMatcher_ShouldMatch()
+    {
+        // Arrange
+        var server = WireMockServer.Start();
+        server.Given(
+                Request.Create().UsingPost().WithPath("/foo").WithBody(new WildcardMatcher("*Hello*"))
+            )
+            .RespondWith(
+                Response.Create().WithStatusCode(200)
+            );
+
+        var jsonObject = new DummyClass
         {
-            // Arrange
-            var server = WireMockServer.Start();
-            server.Given(
-                    Request.Create().UsingPost().WithPath("/foo").WithBody(new WildcardMatcher("*Hello*"))
+            Hi = "Hello World!"
+        };
+
+        // Act
+        var response = await new HttpClient().PostAsJsonAsync("http://localhost:" + server.Ports[0] + "/foo", jsonObject).ConfigureAwait(false);
+
+        // Assert
+        response.StatusCode.Should().Be(HttpStatusCode.OK);
+
+        server.Stop();
+    }
+
+    [Fact]
+    public async Task WireMockServer_WithBodyAsJson_Using_PostAsync_And_WildcardMatcher_ShouldMatch()
+    {
+        // Arrange
+        var server = WireMockServer.Start();
+        server.Given(
+                Request.Create().UsingPost().WithPath("/foo").WithBody(new WildcardMatcher("*Hello*"))
+            )
+            .RespondWith(
+                Response.Create().WithStatusCode(200)
+            );
+
+        // Act
+        var response = await new HttpClient().PostAsync("http://localhost:" + server.Ports[0] + "/foo", new StringContent("{ Hi = \"Hello World\" }")).ConfigureAwait(false);
+
+        // Assert
+        response.StatusCode.Should().Be(HttpStatusCode.OK);
+
+        server.Stop();
+    }
+
+    [Fact]
+    public async Task WireMockServer_WithBodyAsFormUrlEncoded_Using_PostAsync_And_WithFunc()
+    {
+        // Arrange
+        var server = WireMockServer.Start();
+        server.Given(
+            Request.Create()
+                .UsingPost()
+                .WithPath("/foo")
+                .WithBody(values => values != null && values["key1"] == "value1")
+            )
+            .RespondWith(
+                Response.Create()
+            );
+
+        // Act
+        var content = new FormUrlEncodedContent(new[] { new KeyValuePair<string, string>("key1", "value1") });
+        var response = await new HttpClient()
+            .PostAsync($"{server.Url}/foo", content)
+            .ConfigureAwait(false);
+
+        // Assert
+        response.StatusCode.Should().Be(HttpStatusCode.OK);
+
+        server.Stop();
+    }
+
+    [Fact]
+    public async Task WireMockServer_WithBodyAsFormUrlEncoded_Using_PostAsync_And_WithExactMatcher()
+    {
+        // Arrange
+        var server = WireMockServer.Start();
+        server.Given(
+                Request.Create()
+                    .UsingPost()
+                    .WithPath("/foo")
+                    .WithHeader("Content-Type", "application/x-www-form-urlencoded")
+                    .WithBody(new ExactMatcher("name=John+Doe&email=johndoe%40example.com")
                 )
-                .RespondWith(
-                    Response.Create().WithStatusCode(200)
-                );
+            )
+            .RespondWith(
+                Response.Create()
+            );
 
-            var jsonObject = new DummyClass
-            {
-                Hi = "Hello World!"
-            };
-
-            // Act
-            var response = await new HttpClient().PostAsJsonAsync("http://localhost:" + server.Ports[0] + "/foo", jsonObject).ConfigureAwait(false);
-
-            // Assert
-            response.StatusCode.Should().Be(HttpStatusCode.OK);
-
-            server.Stop();
-        }
-
-        [Fact]
-        public async Task WireMockServer_WithBodyAsJson_Using_PostAsync_And_WildcardMatcher_ShouldMatch()
+        // Act
+        var content = new FormUrlEncodedContent(new[]
         {
-            // Arrange
-            var server = WireMockServer.Start();
-            server.Given(
-                    Request.Create().UsingPost().WithPath("/foo").WithBody(new WildcardMatcher("*Hello*"))
-                )
-                .RespondWith(
-                    Response.Create().WithStatusCode(200)
-                );
+            new KeyValuePair<string, string>("name", "John Doe"),
+            new KeyValuePair<string, string>("email", "johndoe@example.com")
+        });
+        var response = await new HttpClient()
+            .PostAsync($"{server.Url}/foo", content)
+            .ConfigureAwait(false);
 
-            // Act
-            var response = await new HttpClient().PostAsync("http://localhost:" + server.Ports[0] + "/foo", new StringContent("{ Hi = \"Hello World\" }")).ConfigureAwait(false);
+        // Assert
+        response.StatusCode.Should().Be(HttpStatusCode.OK);
 
-            // Assert
-            response.StatusCode.Should().Be(HttpStatusCode.OK);
-
-            server.Stop();
-        }
+        server.Stop();
     }
 }
 #endif