another try

Author: AnthonyGiretti

ConsoleAppGRPC/ConsoleAppGRPC.csproj

@@ -31,6 +31,9 @@
     <Protobuf Include="..\DemoAspNetCore3\Protos\country.proto" GrpcServices="Client">
       <Link>Protos\country.proto</Link>
     </Protobuf>
+    <Protobuf Include="..\DemoAspNetCore3\Protos\greet.proto" GrpcServices="Client">
+      <Link>Protos\greet.proto</Link>
+    </Protobuf>
   </ItemGroup>
 
 </Project>

ConsoleAppGRPC/Program.cs

@@ -53,16 +53,15 @@ static async Task Main(string[] args)
             var client = provider.GetRequiredService<CountryServiceClient>();
             */
 
-            
             // gRPC-Web
-            var handler = new GrpcWebHandler(GrpcWebMode.GrpcWebText, HttpVersion.Version11, new HttpClientHandler());
-            var channel = GrpcChannel.ForAddress("https://grpcwebdemo.azurewebsites.net", new GrpcChannelOptions
-            {
-                HttpClient = new HttpClient(handler),
-                LoggerFactory = loggerFactory
-            });
-            var clientWeb = new CountryServiceClient(channel);
-            
+            //var handler = new GrpcWebHandler(GrpcWebMode.GrpcWebText, HttpVersion.Version11, new HttpClientHandler());
+            //var channel = GrpcChannel.ForAddress("https://grpcwebdemo.azurewebsites.net:8080", new GrpcChannelOptions
+            //{
+            //    HttpClient = new HttpClient(handler),
+            //    LoggerFactory = loggerFactory
+            //});
+            //var clientWeb = new CountryServiceClient(channel);
+
             try
             {
                 /*
@@ -116,18 +115,29 @@ static async Task Main(string[] args)
                 countries.ForEach(x => Console.WriteLine($"Found country {x.CountryName} ({x.CountryId}) {x.Description}"));
                 */
 
-                
+
                 // Get all gRPC-web
-                var countriesweb = (await clientWeb.GetAllAsync(new EmptyRequest())).Countries.Select(x => new Country
+                //var countriesweb = (await clientWeb.GetAllAsync(new EmptyRequest())).Countries.Select(x => new Country
+                //{
+                //    CountryId = x.Id,
+                //    Description = x.Description,
+                //    CountryName = x.Name
+                //}).ToList();
+
+                //Console.WriteLine("Found countries with gRPC-Web");
+                //countriesweb.ForEach(x => Console.WriteLine($"Found country with gRPC-Web:  {x.CountryName} ({x.CountryId}) {x.Description}"));
+
+
+                var handler2 = new GrpcWebHandler(GrpcWebMode.GrpcWebText, new HttpClientHandler());
+                var channel2 = GrpcChannel.ForAddress("https://grpcweb.azurewebsites.net", new GrpcChannelOptions
                 {
-                    CountryId = x.Id,
-                    Description = x.Description,
-                    CountryName = x.Name
-                }).ToList();
+                    HttpClient = new HttpClient(handler2),
+                    LoggerFactory = loggerFactory
+                });
+                var clientweb2 = new Greeter.GreeterClient(channel2);
+                var response = await clientweb2.SayHelloAsync(new HelloRequest { Name = ".NET" });
 
-                Console.WriteLine("Found countries with gRPC-Web");
-                countriesweb.ForEach(x => Console.WriteLine($"Found country with gRPC-Web:  {x.CountryName} ({x.CountryId}) {x.Description}"));
-               
+                Console.WriteLine(response.Message);
 
             }
             catch (RpcException e)

DemoAspNetCore3/Protos/greet.proto

@@ -0,0 +1,28 @@
+syntax = "proto3";
+
+option csharp_namespace = "DemoGrpc.Protobufs";
+
+// The greeting service definition.
+service Greeter {
+  // Sends a greeting
+  rpc SayHello (HelloRequest) returns (HelloReply);
+  rpc SayHelloWithHttpContextAccessor (HelloRequest) returns (HelloReply);
+  rpc SayHelloSendLargeReply (HelloRequest) returns (HelloReply);
+  rpc SayHellos (HelloRequest) returns (stream HelloReply);
+  rpc SayHellosSendHeadersFirst (HelloRequest) returns (stream HelloReply);
+}
+
+// Test multiple services in one package
+service SecondGreeter {
+  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;
+}

DemoAspNetCore3/Startup.cs

@@ -108,10 +108,20 @@ public void ConfigureServices(IServiceCollection services)
         // This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
         public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
         {
-            
+            if (env.IsDevelopment())
+            {
+                app.UseDeveloperExceptionPage();
+            }
+            else
+            {
+                app.UseHsts();
+            }
+
+            app.UseHttpsRedirection();
+
             app.UseRouting();
 
-            app.UseCors();
+            app.UseCors("MyPolicy");
 
             app.UseGrpcWeb();