gistfile1.txt

package main

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

var state = make(map[string]int)

func handler(w http.ResponseWriter, r *http.Request) {
	bodyBuffer, _ := ioutil.ReadAll(r.Body)
	fmt.Printf("%s\n", bodyBuffer)
	state[r.URL.Path] = state[r.URL.Path] + 1
	if state[r.URL.Path] <= 4 {
		http.Error(w, "Oops", http.StatusServiceUnavailable)
		fmt.Printf("%s sent 503 on %d try!\n", r.URL.Path, state[r.URL.Path])
		return
	}
	fmt.Printf("%s sent 200 on %d try!\n", r.URL.Path, state[r.URL.Path])
}

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