https://www.jsonrpc.org/specification

• start http server

  import 	"github.com/czsilence/jsonrpc/jsonrpc2/server"
  
  svr := server.NewHttpServer("127.0.0.1", 9002, "rpc")
  svr.RegisterMethod("echo", func(val string) string {
  	return fmt.Sprintf("you say: %s", val)
  })
  svr.Serve()

• start socket server

  import 	"github.com/czsilence/jsonrpc/jsonrpc2/server"
  
  // listen on a tcp host
  svr := server.NewSocketServer("tcp4", "127.0.0.1:9003")
  // or linsten on a unix socket. The path to rpc.socket must be exist
  // svr := server.NewSocketServer("unix", "path/to/rpc.socket")
  svr.RegisterMethod("echo", func(val string) string {
  	return fmt.Sprintf("you say: %s", val)
  })
  svr.Serve()

• test

• • http

    $ curl -d '{"jsonrpc": "2.0", "method": "echo", "params": ["42"], "id": 1}' http://127.0.0.1:9002/rpc

• • socket

    $ nc 127.0.0.1 9003
    {"jsonrpc": "2.0", "method": "echo", "params": ["42"], "id": 1}

• • will get response if success:

    {"id":1,"jsonrpc":"2.0","result":"you say: 42"}