traveltimeExample.go

func travelTime(from string, to string) Directions {
	parameters := "json?origin=" + from + "&destination=" + to + "&key=" + key
	options := "&departure_time=now"
	api := "https://maps.googleapis.com/maps/api/directions/" + parameters + options
	resp, err := http.Get(api)
	check(err)
	defer resp.Body.Close()

	// body is a []Byte ("byte slice")
	body, err := ioutil.ReadAll(resp.Body)
	check(err)

	// parse json (Unmarshal)
	var d Directions
	err = json.Unmarshal(body, &d)
	check(err)

	return d
}

// Directions is the top level return from google maps API
type Directions struct {
	Routes []Route
}