leomzhong/protorpc

Google Protocol Protobufs RPC for Go (Zero Dependencies).

protorpc

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PkgDoc: http://godoc.org/github.com/chai2010/protorpc

C++ Version: https://github.com/chai2010/protorpc.cxx

Talks: Go/C++语言Protobuf-RPC简介

Install

1. go get github.com/chai2010/protorpc
2. go get github.com/chai2010/protorpc/protoc-gen-go
3. go run hello.go

Example

First, create echo.proto:

package service;

message EchoRequest {
	optional string msg = 1;
}

message EchoResponse {
	optional string msg = 1;
}

service EchoService {
	rpc Echo (EchoRequest) returns (EchoResponse);
	rpc EchoTwice (EchoRequest) returns (EchoResponse);
}

Second, generate echo.pb.go from echo.proto (we can use go generate to invoke this command, see proto.go).

protoc --go_out=. echo.proto

Now, we can use the stub code like this:

package main

import (
	"fmt"
	"log"

	"github.com/chai2010/protorpc/proto"
	service "github.com/chai2010/protorpc/internal/service.pb"
)

type Echo int

func (t *Echo) Echo(args *service.EchoRequest, reply *service.EchoResponse) error {
	reply.Msg = proto.String(args.GetMsg())
	return nil
}

func (t *Echo) EchoTwice(args *service.EchoRequest, reply *service.EchoResponse) error {
	reply.Msg = proto.String(args.GetMsg() + args.GetMsg())
	return nil
}

func init() {
	go service.ListenAndServeEchoService("tcp", `127.0.0.1:9527`, new(Echo))
}

func main() {
	echoClient, _, err := service.DialEchoService("tcp", `127.0.0.1:9527`)
	if err != nil {
		log.Fatalf("service.DialEchoService: %v", err)
	}
	defer echoClient.Close()

	args := &service.EchoRequest{Msg: proto.String("你好, 世界!")}
	reply := &service.EchoResponse{}
	err = echoClient.EchoTwice(args, reply)
	if err != nil {
		log.Fatalf("echoClient.EchoTwice: %v", err)
	}
	fmt.Println(reply.GetMsg())
}

BUGS

Report bugs to [email protected].

Thanks!