challenge

challenge.go

package main

import (
	"encoding/json"
	"fmt"
	"io/ioutil"
	"net/http"
	"strings"
)

const request = "https://letsrevolutionizetesting.com/challenge.json"

type Response struct {
	Follow string `json:"follow"`
	Message string `json:"message"`
}

func main() {
	response := Response{}
	response.Follow = request

	for true {
		resp, err := http.Get(response.Follow)
		if err != nil {
			panic(err)
		}
		defer resp.Body.Close()
		body, err := ioutil.ReadAll(resp.Body)
		if err != nil {
			panic(err)
		}
		err = json.Unmarshal(body, &response)
		if len(response.Message) > 0 {
			break
		}
		response.Follow = strings.Replace(response.Follow, "challenge", "challenge.json", -1)
	}
	fmt.Println(response.Message)
}