gotour-notes/http-hello/server.go

package main

import (
	"fmt"
	"net/http"
)

type Hello struct{}

func (h Hello) ServeHTTP(
	w http.ResponseWriter,
	r *http.Request) {
	fmt.Fprint(w, "Hello world")
}

func main() {
    var h Hello
    http.ListenAndServe("localhost:4000", h)
}