server.go

gistfile1.txt

package main

import (
	"io"
	"net/http"
)

func sayhello(res http.ResponseWriter, req *http.Request) {
	io.WriteString(res, "hello world")
}

func main() {
	http.HandleFunc("/sayhello", sayhello)
	http.ListenAndServe(":8081", nil)
}