Add GraphQL Open Telemetry Support

Author: RehanSaeed

Source/GraphQLTemplate/Source/GraphQLTemplate/CustomServiceCollectionExtensions.cs

@@ -176,10 +176,11 @@ static string GetHttpFlavour(string protocol)
                             }
                         };
                             options.RecordException = true;
-                        });
+                        })
 #if Redis
-                builder.AddRedisInstrumentation();
+                    .AddRedisInstrumentation()
 #endif
+                    .AddHotChocolateInstrumentation();
 
                 if (webHostEnvironment.IsDevelopment())
                 {
@@ -217,6 +218,9 @@ public static IServiceCollection AddCustomGraphQL(
         var graphQLOptions = configuration.GetRequiredSection(nameof(ApplicationOptions.GraphQL)).Get<GraphQLOptions>();
         return services
             .AddGraphQLServer()
+#if OpenTelemetry
+            .AddInstrumentation()
+#endif
             .InitializeOnStartup()
             .AddFiltering()
             .AddSorting()

Source/GraphQLTemplate/Source/GraphQLTemplate/GraphQLTemplate.csproj

@@ -58,6 +58,7 @@
     <PackageReference Include="HotChocolate.AspNetCore" Version="12.5.0" />
     <PackageReference Include="HotChocolate.AspNetCore.Authorization" Version="12.5.0" Condition="'$(Authorization)' == 'true'" />
     <PackageReference Include="HotChocolate.Data" Version="12.5.0" />
+    <PackageReference Include="HotChocolate.Diagnostics" Version="12.5.0" Condition="'$(OpenTelemetry)' == 'true'" />
     <PackageReference Include="HotChocolate.PersistedQueries.InMemory" Version="12.5.0" Condition="'$(PersistedQueries)' == 'true'" />
     <PackageReference Include="HotChocolate.PersistedQueries.Redis" Version="12.5.0" Condition="'$(PersistedQueries)' == 'true'" />
     <PackageReference Include="HotChocolate.Subscriptions.Redis" Version="12.5.0" Condition="'$(Subscriptions)' == 'true'" />