rpc server example. edit from https://gist.github.com/jordanorelli/2629049

client.go

package main

import (
	"bufio"
	"fmt"
	"log"
	"net/rpc"
	"os"
)

func main() {
	client, err := rpc.Dial("tcp", "localhost:42586")
	if err != nil {
		log.Fatal(err)
	}

	in := bufio.NewReader(os.Stdin)
	for {
		line, _, err := in.ReadLine()
		if err != nil {
			log.Fatal(err)
		}
		var length int
		err = client.Call("Listener.GetLine", line, &length)
		if err != nil {
			log.Fatal(err)
		}
		fmt.Println("len : ", length)
	}
}

server.go

package main

import (
	"fmt"
	"log"
	"net"
	"net/rpc"
)

type Listener int

func (l *Listener) GetLine(line []byte, length *int) error {
	fmt.Println(string(line))
	*length = len(string(line))
	return nil
}

func main() {
	addy, err := net.ResolveTCPAddr("tcp", "0.0.0.0:42586")
	if err != nil {
		log.Fatal(err)
	}

	inbound, err := net.ListenTCP("tcp", addy)
	if err != nil {
		log.Fatal(err)
	}

	listener := new(Listener)
	rpc.Register(listener)
	rpc.Accept(inbound)
}