learned about goto statements in Go and actually found a use case

goto.go

func getMarketHours() (time.Time, time.Time) {

	url := "https://api.robinhood.com/markets/XNAS/hours/" + time.Now().Format("2006-01-02") + "/"
	//tag for goto statement
L:
	//get today's market info
	res, err := http.Get(url)
	if err != nil {
		panic(err)
	}

	byt, err := ioutil.ReadAll(res.Body)
	if err != nil {
		panic(err)
	}

	var m map[string]interface{}

	err = json.Unmarshal(byt, &m)
	if err != nil {
		panic(err)
	}


	//if the market is open on fetched day and the close time is in the future
	//then parse time strings
	if m["is_open"].(bool) {
		openTime, err := time.Parse(time.RFC3339, m["opens_at"].(string))
		closeTime, err := time.Parse(time.RFC3339, m["closes_at"].(string))
		if err != nil {
			panic(err)
		}

		if closeTime.After(time.Now()) {
			return openTime, closeTime
		}

	}
	//else get the next open hours
	url= m["next_open_hours"].(string)
	//and fetch again
	goto L
}