http://tour.golang.org/#60 GoLang tutorial number 60

60.go

package main

import (
    "fmt"
    "net/http"
)

type String string

type Struct struct {
    Greeting string
    Punct    string
    Who      string
}

func (h Struct) ServeHTTP(
    w http.ResponseWriter,
    r *http.Request) {
    fmt.Fprint(w, h.Greeting, h.Punct, h.Who)
}

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

func main() {
    http.Handle("/string", String("I'm a frayed knot."))
	http.Handle("/struct", &Struct{"Hello", ":", "Gophers!"})
    http.ListenAndServe("localhost:4000", nil)
}