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Create the gRPC cliet in a .NET console app

Create a console app​

dotnet new console -o GrpcGreeterClient

Add gRPC packages to the project​

dotnet add GrpcGreeterClient.csproj package Grpc.Net.Client
dotnet add GrpcGreeterClient.csproj package Google.Protobuf
dotnet add GrpcGreeterClient.csproj package Grpc.Tools

Add gree.proto​

  • Create a Proto folder in the project.
  • Copy the Greet.proto file from gRPC server to here.(gRPC server and clinet use a same proto file)
  • add namespace to the file
option csharp_namespace = "GrpcGreeterClient"

Add <Protobuf> element to <ItemGroup> in the .csproj file.​

<ItemGroup>
  <Protobuf Include="Protos/greet.proto" GrpcService="Client">
<ItemGroup>

Create the Greeter client​

  • Build the client project to create the types in the GrpcGreeterClient namespace.

  • Update the gRPC client Program.cs file.

var GrpcServerAddress = "https://localhost:7042"
// the port number must match the port of hte gRPC server 
using var channel = GrpcChannel.ForAddress(GrpcServerAddress)
var client = new Greeter.GreeterClient(channel);

var reply = await client.SayHelloAsync(
  new HelloRequest { Name = "GreeterClient" });

Console.WriteLine("Greeting" + reply.message);