Go tour HTTP Server exercise

http_server_ex.go

package main

import (
    "fmt"
    "net/http"
)


type String string

type Struct struct {
    Greeting string
    Punct    string
    Who      string
}

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

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

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