Simple HTTP & Static rendering in Go

gistfile1.go

package main

import (
	"fmt"
	"io/ioutil"
	"log"
	"net/http"
)

var INDEX_HTML []byte

func main() {
	fmt.Println("starting server on http://localhost:8888/\nvalue is %s", "asdf")
	http.HandleFunc("/", IndexHandler)
	http.HandleFunc("/post", PostHandler)
	serveSingle("/js/getData.js", "./js/getData.js")
	// http.Handle("/js/", http.StripPrefix("/js/", http.FileServer(http.Dir("js/getData.js"))))
	http.ListenAndServe(":8888", nil)
}

func serveSingle(pattern string, filename string) {
	http.HandleFunc(pattern, func(w http.ResponseWriter, r *http.Request) {
		http.ServeFile(w, r, filename)
	})
}

func IndexHandler(w http.ResponseWriter, r *http.Request) {
	log.Println("GET /")
	w.Write(INDEX_HTML)
}

func PostHandler(w http.ResponseWriter, r *http.Request) {
	r.ParseForm()
	log.Println("in posthandler", r.Form)
	var value = r.FormValue("textfield")
	w.Write([]byte(value))
}
func init() {
	INDEX_HTML, _ = ioutil.ReadFile("./html/index.html")
}

// http://stackoverflow.com/questions/28138952/ajax-request-not-sending-to-go-web-server