Creating service contracts

First, we need to add the Grpc.AspNetCore NuGet package to the Codebreaker.Live project. Then, we must add a Protobuf file as a contract to the service. The contract file is language and platform-independent, so a .NET service can communicate with a Dart application using the same Protobuf file.

Using Visual Studio, add a Protos folder, and use the Visual Studio template to create a Protobuf file. When using the command line, with the current directory set to the project folder of Codebreaker.Live, you can run the following command to create the LiveGame.proto file inside the Protos folder:

dotnet new proto -o Protos -n LiveGame

Now, let’s create contracts for both live-service and game-apis.

Creating a gRPC service contract for live-service

The simpler contract is the one for live-service:

Codebreaker.Live/Protos/LiveGame.proto

syntax = "proto3";
option csharp_namespace = "Codebreaker.Live.Grpc";
package ReportGame...