watch_tower.go

package main

import (
	"fmt"
	"net/http"
	"sync"
	"time"
)

func main() {
	domains := []string{"http://bbc.co.uk", "http://composition.newsbeat.news.cloud.bbc.co.uk"}
	endpoints := []string{"newsbeat", "newsbeat/popular", "newsbeat/topics", "newsbeat/topics/entertainment", "newsbeat/topics/surgery", "newsbeat/article/32792353/im-engaged-but-will-i-ever-be-able-to-marry-my-boyfriend"}
	var wg sync.WaitGroup

	for _, domain := range domains {
		for _, endpoint := range endpoints {
			wg.Add(1)
			go check(endpoint, domain, &wg)
		}
	}
	wg.Wait()
}

func check(endpoint string, domain string, wg *sync.WaitGroup) {
	defer wg.Done()
	timeout := time.Duration(2 * time.Second)
	client := http.Client{Timeout: timeout}
	resp, _ := client.Get(fmt.Sprintf("%s/%s", domain, endpoint))
	fmt.Printf("%s/%s [%s]\n", domain, endpoint, resp.Status)
}