ping.go

func pingGoogle() (string,error) {
	pinger,err := ping.NewPinger("www.google.com")
	if err != nil {
		return "", errors.New("Network Error")
	}
	pinger.Count = 1
	pinger.Timeout=2 * time.Second
	pinger.Debug=true
	pinger.Run()
	if pinger.Statistics().Rtts==nil{
		return "",errors.New("Network Error")
	}
	return 	strconv.Itoa(int(pinger.Statistics().Rtts[0].Milliseconds())) +" ms",nil
}