Print request

gistfile1.txt

package main

import (
	"fmt"
	"net/http"
	"sort"
	"strings"
)

func handler(w http.ResponseWriter, r *http.Request) {

	var keys []string
	for k := range r.Header {
		keys = append(keys, k)
	}
	sort.Strings(keys)

	subdomain := strings.Split(r.Host, ".")[0]

	fmt.Fprintln(w, "<b>Subdomain: "+subdomain+"</b></br")
	fmt.Fprintln(w, "<b>Request Headers:</b></br>", r.URL.Path[1:])

	for _, k := range keys {
		fmt.Fprintln(w, k, ":", r.Header[k], "</br>", r.URL.Path[1:])
	}
}

func main() {
	http.HandleFunc("/", handler)
	http.ListenAndServe(":8080", nil)
}