GRPC-GO:Client stub not shown in the generated pb.go file

Question

I am trying to learn GRPC from the official doc, Here is the tutorial I have followed grpc-go

Generating the proto using this command

protoc  --go_out=$PWD  helloworld/helloworld.proto

This above command will generate the file helloworld.pb.go without any problem but the problem is the code for the client stub is missing from the generated file

syntax = "proto3";
package helloworld;

// 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;
}

The actual error i am getting from the client connection which is

undefined: helloworld.NewGreeterClient

And this has occurred from the line c := pb.NewGreeterClient(conn) in the greeter_client/main.go file

The reason behind because the client stub not generated in the generated file

Answer 1

Issue resolved i have some problems with the command

Here is the actual command

protoc   --go_out=plugins=grpc:$PWD helloworld.proto

Answer 2

Add --I to your command. eg

protoc -I helloworld --go_out=${PWD} helloworld/*.proto