syntax = "proto3"; option csharp_namespace = "XYY.gRpc.Customer"; package greet; // The greeting service definition. service Greeter { // Sends a greeting 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; }