Go Standard Library Cookbook

How to do it...

1. Open the console and create the folder chapter07/recipe11.
2. Navigate to the directory.
3. Create the jsonrpc.go file with the following content:

        package main        import (          "log"          "net"          "net/rpc"          "net/rpc/jsonrpc"        )        type Args struct {          A, B int        }        type Result int        type RpcServer struct{}        func (t RpcServer) Add(args *Args, result *Result) error {          log.Printf("Adding %d to %d\n", args.A, args.B)          *result = Result(args.A + args.B)          return nil        }         const addr = ":7070"         func main() {          go createServer(addr)          client, err := jsonrpc.Dial("tcp", addr)          if err != nil {            panic(err)          }          defer client.Close()          args := &Args{            A: 2,            B: 3,          }          var result Result          err = client.Call("RpcServer.Add", args, &result)          if err != nil { log.Fatalf("error in RpcServer", err) ...