Add 'Data' to response which can be used during transforming the response (#893)

* Add 'Data' to response which can be used during transforming the response

* md

* hb

* fix

* Linq

* fix test

* v4

* 14

* .

* x

* remove

* s

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" />

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 object? StatusCode { get; set; }
-    public class ResponseModel
-    {
-        /// <summary>
-        /// Gets or sets the HTTP status.
-        /// </summary>
-        public object? StatusCode { get; set; }
 
-        /// <summary>
+    /// <summary>
-        /// Gets or sets the body destination (SameAsSource, String or Bytes).
+    /// Gets or sets the body destination (SameAsSource, String or Bytes).
-        /// </summary>
+    /// </summary>
-        public string? BodyDestination { get; set; }
+    public string? BodyDestination { get; set; }
 
-        /// <summary>
+    /// <summary>
-        /// Gets or sets the body.
+    /// Gets or sets the body.
-        /// </summary>
+    /// </summary>
-        public string? Body { get; set; }
+    public string? Body { get; set; }
 
-        /// <summary>
+    /// <summary>
-        /// Gets or sets the body (as JSON object).
+    /// Gets or sets the body (as JSON object).
-        /// </summary>
+    /// </summary>
-        public object? BodyAsJson { get; set; }
+    public object? BodyAsJson { get; set; }
 
-        /// <summary>
+    /// <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.
+    /// 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>
+    /// </summary>
-        public bool? BodyAsJsonIndented { get; set; }
+    public bool? BodyAsJsonIndented { get; set; }
 
-        /// <summary>
+    /// <summary>
-        /// Gets or sets the body (as bytearray).
+    /// Gets or sets the body (as bytearray).
-        /// </summary>
+    /// </summary>
-        public byte[]? BodyAsBytes { get; set; }
+    public byte[]? BodyAsBytes { get; set; }
 
-        /// <summary>
+    /// <summary>
-        /// Gets or sets the body as a file.
+    /// Gets or sets the body as a file.
-        /// </summary>
+    /// </summary>
-        public string? BodyAsFile { get; set; }
+    public string? BodyAsFile { get; set; }
 
-        /// <summary>
+    /// <summary>
-        /// Is the body as file cached?
+    /// Is the body as file cached?
-        /// </summary>
+    /// </summary>
-        public bool? BodyAsFileIsCached { get; set; }
+    public bool? BodyAsFileIsCached { get; set; }
 
-        /// <summary>
+    /// <summary>
-        /// Gets or sets the body encoding.
+    /// Gets or sets the body encoding.
-        /// </summary>
+    /// </summary>
-        public EncodingModel? BodyEncoding { get; set; }
+    public EncodingModel? BodyEncoding { get; set; }
 
-        /// <summary>
+    /// <summary>
-        /// Use ResponseMessage Transformer.
+    /// Use ResponseMessage Transformer.
-        /// </summary>
+    /// </summary>
-        public bool? UseTransformer { get; set; }
+    public bool? UseTransformer { get; set; }
 
-        /// <summary>
+    /// <summary>
-        /// Gets the type of the transformer.
+    /// Gets the type of the transformer.
-        /// </summary>
+    /// </summary>
-        public string? TransformerType { get; set; }
+    public string? TransformerType { get; set; }
 
-        /// <summary>
+    /// <summary>
-        /// Use the Handlebars transformer for the content from the referenced BodyAsFile.
+    /// Use the Handlebars transformer for the content from the referenced BodyAsFile.
-        /// </summary>
+    /// </summary>
-        public bool? UseTransformerForBodyAsFile { get; set; }
+    public bool? UseTransformerForBodyAsFile { get; set; }
 
-        /// <summary>
+    /// <summary>
-        /// The ReplaceNodeOptions to use when transforming a JSON node.
+    /// The ReplaceNodeOptions to use when transforming a JSON node.
-        /// </summary>
+    /// </summary>
-        public string? TransformerReplaceNodeOptions { get; set; }
+    public string? TransformerReplaceNodeOptions { get; set; }
 
-        /// <summary>
+    /// <summary>
-        /// Gets or sets the headers.
+    /// Gets or sets the headers.
-        /// </summary>
+    /// </summary>
-        public IDictionary<string, object>? Headers { get; set; }
+    public IDictionary<string, object>? Headers { get; set; }
 
-        /// <summary>
+    /// <summary>
-        /// Gets or sets the Headers (Raw).
+    /// Gets or sets the Headers (Raw).
-        /// </summary>
+    /// </summary>
-        public string? HeadersRaw { get; set; }
+    public string? HeadersRaw { get; set; }
 
-        /// <summary>
+    /// <summary>
-        /// Gets or sets the delay in milliseconds.
+    /// Gets or sets the delay in milliseconds.
-        /// </summary>
+    /// </summary>
-        public int? Delay { get; set; }
+    public int? Delay { get; set; }
 
-        /// <summary>
+    /// <summary>
-        /// Gets or sets the minimum random delay in milliseconds.
+    /// Gets or sets the minimum random delay in milliseconds.
-        /// </summary>
+    /// </summary>
-        public int? MinimumRandomDelay { get; set; }
+    public int? MinimumRandomDelay { get; set; }
 
-        /// <summary>
+    /// <summary>
-        /// Gets or sets the maximum random delay in milliseconds.
+    /// Gets or sets the maximum random delay in milliseconds.
-        /// </summary>
+    /// </summary>
-        public int? MaximumRandomDelay { get; set; }
+    public int? MaximumRandomDelay { get; set; }
 
-        /// <summary>
+    /// <summary>
-        /// Gets or sets the Proxy URL.
+    /// Gets or sets the Proxy URL.
-        /// </summary>
+    /// </summary>
-        public string? ProxyUrl { get; set; }
+    public string? ProxyUrl { get; set; }
 
-        /// <summary>
+    /// <summary>
-        /// The client X509Certificate2 Thumbprint or SubjectName to use.
+    /// The client X509Certificate2 Thumbprint or SubjectName to use.
-        /// </summary>
+    /// </summary>
-        public string? X509Certificate2ThumbprintOrSubjectName { get; set; }
+    public string? X509Certificate2ThumbprintOrSubjectName { get; set; }
 
-        /// <summary>
+    /// <summary>
-        /// Gets or sets the fault.
+    /// Gets or sets the fault.
-        /// </summary>
+    /// </summary>
-        public FaultModel? Fault { get; set; }
+    public FaultModel? Fault { get; set; }
 
-        /// <summary>
+    /// <summary>
-        /// Gets or sets the WebProxy settings.
+    /// Gets or sets the WebProxy settings.
-        /// </summary>
+    /// </summary>
-        public WebProxyModel? WebProxy { get; set; }
+    public WebProxyModel? WebProxy { 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/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 new object?[0];
+        }
+
+        return ConvertJTokenArray(src, options);
+    }
+
+    private static object? ConvertJObject(JToken arg, DynamicJsonClassOptions? options = null)
+    {
+        if (arg is JObject asJObject)
+        {
+            return asJObject.ToDynamicJsonClass(options);
+        }
+
+        return GetResolverFor(arg)(arg, options);
+    }
+
+    private static object PassThrough(JToken arg, DynamicJsonClassOptions? options)
+    {
+        return arg;
+    }
+
+    private static Func<JToken, DynamicJsonClassOptions?, object?> GetResolverFor(JToken arg)
+    {
+        return Resolvers.TryGetValue(arg.Type, out var result) ? result : PassThrough;
+    }
+
+    private static object ConvertJTokenFloat(JToken arg, DynamicJsonClassOptions? options = null)
+    {
+        if (arg.Type != JTokenType.Float)
+        {
+            throw new InvalidOperationException($"Unable to convert {nameof(JToken)} of type: {arg.Type} to double or float.");
+        }
+
+        if (options?.FloatConvertBehavior == FloatBehavior.UseFloat)
+        {
+            try
+            {
+                return arg.Value<float>();
+            }
+            catch
+            {
+                return arg.Value<double>();
+            }
+        }
+
+        if (options?.FloatConvertBehavior == FloatBehavior.UseDecimal)
+        {
+            try
+            {
+                return arg.Value<decimal>();
+            }
+            catch
+            {
+                return arg.Value<double>();
+            }
+        }
+
+
+        return arg.Value<double>();
+    }
+
+    private static object ConvertJTokenInteger(JToken arg, DynamicJsonClassOptions? options = null)
+    {
+        if (arg.Type != JTokenType.Integer)
+        {
+            throw new InvalidOperationException($"Unable to convert {nameof(JToken)} of type: {arg.Type} to long or int.");
+        }
+
+        var longValue = arg.Value<long>();
+
+        if (options is null || options.IntegerConvertBehavior == IntegerBehavior.UseInt)
+        {
+            if (longValue is >= int.MinValue and <= int.MaxValue)
+            {
+                return Convert.ToInt32(longValue);
+            }
+        }
+
+        return longValue;
+    }
+
+    private static object? ConvertJTokenProperty(JToken arg, DynamicJsonClassOptions? options = null)
+    {
+        var resolver = GetResolverFor(arg);
+        if (resolver is null)
+        {
+            throw new InvalidOperationException($"Unable to handle {nameof(JToken)} of type: {arg.Type}.");
+        }
+
+        return resolver(arg, options);
+    }
+
+    private static IEnumerable ConvertJTokenArray(JToken arg, DynamicJsonClassOptions? options = null)
+    {
+        if (arg is not JArray array)
+        {
+            throw new InvalidOperationException($"Unable to convert {nameof(JToken)} of type: {arg.Type} to {nameof(JArray)}.");
+        }
+
+        var result = new List<object?>();
+        foreach (var item in array)
+        {
+            result.Add(ConvertJObject(item));
+        }
+
+        var distinctType = FindSameTypeOf(result);
+        return distinctType == null ? result.ToArray() : ConvertToTypedArray(result, distinctType);
+    }
+
+    private static Type? FindSameTypeOf(IEnumerable<object?> src)
+    {
+        var types = src.Select(o => o?.GetType()).Distinct().OfType<Type>().ToArray();
+        return types.Length == 1 ? types[0] : null;
+    }
+
+    private static IEnumerable ConvertToTypedArray(IEnumerable<object?> src, Type newType)
+    {
+        var method = ConvertToTypedArrayGenericMethod.MakeGenericMethod(newType);
+        return (IEnumerable)method.Invoke(null, new object[] { src })!;
+    }
+
+    private static readonly MethodInfo ConvertToTypedArrayGenericMethod = typeof(JObjectExtensions).GetMethod(nameof(ConvertToTypedArrayGeneric), BindingFlags.NonPublic | BindingFlags.Static)!;
+
+    private static T[] ConvertToTypedArrayGeneric<T>(IEnumerable<object> src)
+    {
+        return src.Cast<T>().ToArray();
+    }
+
+    public static DynamicClass CreateInstance(IList<DynamicPropertyWithValue> dynamicPropertiesWithValue, bool createParameterCtor = true)
+    {
+        var type = DynamicClassFactory.CreateType(dynamicPropertiesWithValue.Cast<DynamicProperty>().ToArray(), createParameterCtor);
+        var dynamicClass = (DynamicClass)Activator.CreateInstance(type);
+        foreach (var dynamicPropertyWithValue in dynamicPropertiesWithValue.Where(p => p.Value != null))
+        {
+            dynamicClass.SetDynamicPropertyValue(dynamicPropertyWithValue.Name, dynamicPropertyWithValue.Value!);
+        }
+
+        return dynamicClass;
+    }
+}

src/WireMock.Net/Mapping.cs

@@ -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;
+        JArray jArray;
-        switch (input)
+        try
         {
-            case JObject valueAsJObject:
+            jArray = new JArray { input };
-                value = valueAsJObject;
+        }
-                break;
+        catch
-
+        {
-            case { } valueAsObject:
+            jArray = new JArray { JToken.FromObject(input) };
-                value = JObject.FromObject(valueAsObject);
-                break;
-
-            default:
-                return MatchScores.Mismatch;
         }
 
+        //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/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">
+    /// <param name="responseMessage">The response.</param>
-    /// The response.
-    /// </param>
     private Response(ResponseMessage responseMessage)
     {
         ResponseMessage = responseMessage;
     }
-
+    
     /// <inheritdoc cref="IStatusCodeResponseBuilder.WithStatusCode(int)"/>
     [PublicAPI]
     public IResponseBuilder WithStatusCode(int code)

src/WireMock.Net/Serialization/MappingConverter.cs

@@ -181,6 +181,7 @@ internal class MappingConverter
             Scenario = mapping.Scenario,
             WhenStateIs = mapping.ExecutionConditionState,
             SetStateTo = mapping.NextState,
+            Data = mapping.Data,
             Request = new RequestModel
             {
                 Headers = headerMatchers.Any() ? headerMatchers.Select(hm => new HeaderModel

src/WireMock.Net/Serialization/ProxyMappingConverter.cs

@@ -177,7 +177,8 @@ internal class ProxyMappingConverter
             stateTimes: null,
             webhooks: null,
             useWebhooksFireAndForget: null,
-            timeSettings: null
+            timeSettings: null,
+            data: mapping?.Data
         );
     }
 }

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.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/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;
@@ -115,7 +116,8 @@ internal class Transformer : ITransformer
         {
             mapping = mapping,
             request = request,
-            response = response
+            response = response,
+            data = mapping.Data ?? new { }
         });
     }
 

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;
@@ -108,103 +106,4 @@ internal static class JsonUtils
             _ => throw new NotSupportedException($"Unable to convert value to {typeof(T)}.")
         };
     }
-
-    /// <summary>
-    /// Based on / copied from Handlebars.Net Handlebars.Net.Helpers.Utils.JsonUtils
-    /// </summary>
-    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/WireMock.Net.csproj

@@ -53,13 +53,13 @@
 
     <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="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 +177,13 @@
     </ItemGroup>
 
     <ItemGroup>
-        <PackageReference Include="Handlebars.Net.Helpers" Version="2.3.12" />
+        <PackageReference Include="Handlebars.Net.Helpers" Version="2.3.15-preview-01" />
-        <PackageReference Include="Handlebars.Net.Helpers.DynamicLinq" Version="2.3.12" />
+        <PackageReference Include="Handlebars.Net.Helpers.DynamicLinq" Version="2.3.15-preview-01" />
-        <PackageReference Include="Handlebars.Net.Helpers.Humanizer" Version="2.3.12" />
+        <PackageReference Include="Handlebars.Net.Helpers.Humanizer" Version="2.3.15-preview-01" />
-        <PackageReference Include="Handlebars.Net.Helpers.Json" Version="2.3.12" />
+        <PackageReference Include="Handlebars.Net.Helpers.Json" Version="2.3.15-preview-01" />
-        <PackageReference Include="Handlebars.Net.Helpers.Random" Version="2.3.12" />
+        <PackageReference Include="Handlebars.Net.Helpers.Random" Version="2.3.15-preview-01" />
-        <PackageReference Include="Handlebars.Net.Helpers.XPath" Version="2.3.12" />
+        <PackageReference Include="Handlebars.Net.Helpers.XPath" Version="2.3.15-preview-01" />
-        <PackageReference Include="Handlebars.Net.Helpers.Xeger" Version="2.3.12" />
+        <PackageReference Include="Handlebars.Net.Helpers.Xeger" Version="2.3.15-preview-01" />
     </ItemGroup>
 
     <ItemGroup>

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/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/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-->
@@ -63,12 +63,13 @@
         </PackageReference>
 
         <PackageReference Include="Moq" Version="4.17.2" />
+
+        <PackageReference Include="System.Linq.Dynamic.Core" Version="1.3.1-preview-02" />
         <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>
 
@@ -97,7 +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>
@@ -117,8 +119,8 @@
             <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
         </None>
         <None Update="client_cert.pfx">
-          <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+            <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
-          <DependentUpon>WireMockServerTests.ClientCertificate.cs</DependentUpon>
+            <DependentUpon>WireMockServerTests.ClientCertificate.cs</DependentUpon>
         </None>
     </ItemGroup>
 
@@ -127,7 +129,7 @@
     </ItemGroup>
 
     <ItemGroup>
-      <Folder Include="Pact\files\" />
+        <Folder Include="Pact\files\" />
     </ItemGroup>
 
 </Project>