Add Grpc ProtoBuf support (request-response) (#1047)

* ProtoBuf

* .

* x

* ---

* x

* fx

* ...

* sc

* ...

* .

* groen

* x

* fix tests

* ok!?

* fix tests

* fix tests

* !

* x

* 6

* .

* x

* ivaluematcher

* transformer

* .

* sc

* .

* mapping

* x

* tra

* com

* ...

* .

* .

* .

* AddProtoDefinition

* .

* set

* grpahj

* .

* .

* IdOrText

* ...

* async

* async2

* .

* t

* nuget

* <PackageReference Include="ProtoBufJsonConverter" Version="0.2.0-preview-04" />

* http version

* tests

* .WithHttpVersion("2")

* <PackageReference Include="ProtoBufJsonConverter" Version="0.2.0" />

* HttpVersionParser

examples/WireMock.Net.Console.GrpcClient/Program.cs

@@ -0,0 +1,21 @@
+using Greet;
+using Grpc.Net.Client;
+
+namespace WireMock.Net.Console.GrpcClient;
+
+internal class Program
+{
+    static async Task Main(string[] args)
+    {
+        var channel = GrpcChannel.ForAddress("http://localhost:9093/grpc3", new GrpcChannelOptions
+        {
+            Credentials = Grpc.Core.ChannelCredentials.Insecure
+        });
+
+        var client = new Greeter.GreeterClient(channel);
+
+        var reply = await client.SayHelloAsync(new HelloRequest { Name = "stef" });
+
+        System.Console.WriteLine("Greeting: " + reply.Message);
+    }
+}

examples/WireMock.Net.Console.GrpcClient/WireMock.Net.Console.GrpcClient.csproj

@@ -0,0 +1,23 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+    <PropertyGroup>
+        <OutputType>Exe</OutputType>
+        <TargetFramework>net8.0</TargetFramework>
+        <ImplicitUsings>enable</ImplicitUsings>
+        <Nullable>enable</Nullable>
+    </PropertyGroup>
+
+    <ItemGroup>
+        <PackageReference Include="Google.Protobuf" Version="3.25.1" />
+        <PackageReference Include="Grpc.Net.Client" Version="2.59.0" />
+        <PackageReference Include="Grpc.Tools" Version="2.60.0">
+            <PrivateAssets>all</PrivateAssets>
+            <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+        </PackageReference>
+    </ItemGroup>
+
+    <ItemGroup>
+        <Protobuf Include="greet.proto" GrpcServices="Client" />
+    </ItemGroup>
+
+</Project>

examples/WireMock.Net.Console.GrpcClient/greet.proto

@@ -0,0 +1,33 @@
+// Copyright 2019 The gRPC Authors
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+syntax = "proto3";
+
+package greet;
+
+// The greeting service definition.
+service Greeter {
+  // Sends a greeting
+  rpc SayHello (HelloRequest) returns (HelloReply);
+}
+
+// The request message containing the user's name.
+message HelloRequest {
+  string name = 1;
+}
+
+// The response message containing the greetings
+message HelloReply {
+  string message = 1;
+}

examples/WireMock.Net.Console.NET8/WireMock.Net.Console.NET8.csproj

@@ -3,7 +3,7 @@
   <PropertyGroup>
     <OutputType>Exe</OutputType>
     <TargetFramework>net8.0</TargetFramework>
-      <DefineConstants>$(DefineConstants);GRAPHQL;MIMEKIT</DefineConstants>
+      <DefineConstants>$(DefineConstants);GRAPHQL;MIMEKIT;PROTOBUF</DefineConstants>
   </PropertyGroup>
 
   <ItemGroup>

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

@@ -42,6 +42,24 @@ namespace WireMock.Net.ConsoleApplication
 
     public static class MainApp
     {
+        private const string ProtoDefinition = @"
+syntax = ""proto3"";
+
+package greet;
+
+service Greeter {
+  rpc SayHello (HelloRequest) returns (HelloReply);
+}
+
+message HelloRequest {
+  string name = 1;
+}
+
+message HelloReply {
+  string message = 1;
+}
+";
+
         private const string TestSchema = @"
   scalar DateTime
   scalar MyCustomScalar
@@ -115,17 +133,14 @@ namespace WireMock.Net.ConsoleApplication
                     .WithBodyAsJson(rm => todos[int.Parse(rm.Query!["id"].ToString())])
                 );
 
-            var httpClient = server.CreateClient();
-            //server.Stop();
-
-            var httpAndHttpsWithPort = WireMockServer.Start(new WireMockServerSettings
+            using var httpAndHttpsWithPort = WireMockServer.Start(new WireMockServerSettings
             {
                 HostingScheme = HostingScheme.HttpAndHttps,
                 Port = 12399
             });
             httpAndHttpsWithPort.Stop();
 
-            var httpAndHttpsFree = WireMockServer.Start(new WireMockServerSettings
+            using var httpAndHttpsFree = WireMockServer.Start(new WireMockServerSettings
             {
                 HostingScheme = HostingScheme.HttpAndHttps
             });
@@ -134,11 +149,14 @@ namespace WireMock.Net.ConsoleApplication
             string url1 = "http://localhost:9091/";
             string url2 = "http://localhost:9092/";
             string url3 = "https://localhost:9443/";
+            string urlGrpc = "grpc://localhost:9093/";
+            string urlGrpcSSL = "grpcs://localhost:9094/";
 
             server = WireMockServer.Start(new WireMockServerSettings
             {
+                // CorsPolicyOptions = CorsPolicyOptions.AllowAll,
                 AllowCSharpCodeMatcher = true,
-                Urls = new[] { url1, url2, url3 },
+                Urls = new[] { url1, url2, url3, urlGrpc, urlGrpcSSL },
                 StartAdminInterface = true,
                 ReadStaticMappings = true,
                 SaveUnmatchedRequests = true,
@@ -171,17 +189,91 @@ namespace WireMock.Net.ConsoleApplication
             //server.SetAzureADAuthentication("6c2a4722-f3b9-4970-b8fc-fac41e29stef", "8587fde1-7824-42c7-8592-faf92b04stef");
 
             // server.AllowPartialMapping();
+
+#if PROTOBUF
+            var protoBufJsonMatcher = new JsonPartialWildcardMatcher(new { name = "*" });
+            server
+                .Given(Request.Create()
+                    .UsingPost()
+                    .WithHttpVersion("2")
+                    .WithPath("/grpc/greet.Greeter/SayHello")
+                    .WithBodyAsProtoBuf(ProtoDefinition, "greet.HelloRequest", protoBufJsonMatcher)
+                )
+                .RespondWith(Response.Create()
+                    .WithHeader("Content-Type", "application/grpc")
+                    .WithBodyAsProtoBuf(ProtoDefinition, "greet.HelloReply",
+                        new
+                        {
+                            message = "hello {{request.BodyAsJson.name}}"
+                        }
+                    )
+                    .WithTrailingHeader("grpc-status", "0")
+                    .WithTransformer()
+                );
+
+            server
+                .Given(Request.Create()
+                    .UsingPost()
+                    .WithHttpVersion("2")
+                    .WithPath("/grpc2/greet.Greeter/SayHello")
+                    .WithBodyAsProtoBuf("greet.HelloRequest", protoBufJsonMatcher)
+                )
+                .WithProtoDefinition(ProtoDefinition)
+                .RespondWith(Response.Create()
+                    .WithHeader("Content-Type", "application/grpc")
+                    .WithBodyAsProtoBuf("greet.HelloReply",
+                        new
+                        {
+                            message = "hello {{request.BodyAsJson.name}}"
+                        }
+                    )
+                    .WithTrailingHeader("grpc-status", "0")
+                    .WithTransformer()
+                );
+
+            server
+                .AddProtoDefinition("my-greeter", ProtoDefinition)
+                .Given(Request.Create()
+                    .UsingPost()
+                    .WithPath("/grpc3/greet.Greeter/SayHello")
+                    .WithBodyAsProtoBuf("greet.HelloRequest", protoBufJsonMatcher)
+                )
+                .WithProtoDefinition("my-greeter")
+                .RespondWith(Response.Create()
+                    .WithHeader("Content-Type", "application/grpc")
+                    .WithBodyAsProtoBuf("greet.HelloReply",
+                        new
+                        {
+                            message = "hello {{request.BodyAsJson.name}}"
+                        }
+                    )
+                    .WithTrailingHeader("grpc-status", "0")
+                    .WithTransformer()
+                );
+#endif
+
 #if GRAPHQL
             var customScalars = new Dictionary<string, Type> { { "MyCustomScalar", typeof(int) } };
             server
                 .Given(Request.Create()
                     .WithPath("/graphql")
                     .UsingPost()
-                    .WithGraphQLSchema(TestSchema, customScalars)
+                    .WithBodyAsGraphQL(TestSchema, customScalars)
                 )
                 .RespondWith(Response.Create()
                     .WithBody("GraphQL is ok")
                 );
+
+            //server
+            //    .AddGraphQLSchema("my-graphql", TestSchema, customScalars)
+            //    .Given(Request.Create()
+            //        .WithPath("/graphql2")
+            //        .UsingPost()
+            //    )
+            //    .WithGraphQLSchema("my-graphql")
+            //    .RespondWith(Response.Create()
+            //        .WithBody("GraphQL is ok")
+            //    );
 #endif
 
 #if MIMEKIT
@@ -336,8 +428,8 @@ namespace WireMock.Net.ConsoleApplication
                         Url = "http://localhost:9999",
                         ReplaceSettings = new ProxyUrlReplaceSettings
                         {
-                           OldValue = "old",
-                           NewValue = "new"
+                            OldValue = "old",
+                            NewValue = "new"
                         }
                     })
                 );