The solution contains two solutions

1. OrderService (gRPC service)
2. Consumer ( Console Application)

OrderService

Open the Protos\order.proto file and define your service: every new method you define here will be avaliable for implementation under your Service class

Implement the service logic: Open the Services\OrderService.cs file and implement the endpoint defined in proto file.

Open proto file properties Build action: Protobuf compiler gRPC Stub class: server only

Consumer

Add in csproj file:

<ItemGroup>
    <PackageReference Include="Grpc.Net.Client" Version="2.41.0" />
    <PackageReference Include="Google.Protobuf" Version="3.18.0" />
    <PackageReference Include="Grpc.Tools" Version="2.41.0" />
</ItemGroup>

Add refernec to your server project

Add proto file in properties: Build action: Protobuf compiler gRPC Stub class: client only

Create Channel using var channel = GrpcChannel.ForAddress("http://localhost:5039") #your uri to service, configure in appsettings

Create Client var client = new Order.OrderClient(channel);

Call Method var request = new BillingRequest { Name = name, Product = "Bread", Quantity = quantity }; var response = client.Checkout(request);

Now, Run both the projects and give inputs to the prompts on the console: