openWeatherMap.go

type openWeatherMap struct {
	apiKey string
}

func (w openWeatherMap) temperature(city string) (float64, error) {
	resp, err := http.Get("http://api.openweathermap.org/data/2.5/weather?APPID=" + w.apiKey + "&q=" + city)
	if err != nil {
		return 0, err
	}

	defer resp.Body.Close()

	var d struct {
		Main struct {
			Kelvin float64 `json:"temp"`
		} `json:"main"`
	}

	if err := json.NewDecoder(resp.Body).Decode(&d); err != nil {
		return 0, err
	}

	log.Printf("openWeatherMap: %s: %.2f", city, d.Main.Kelvin)
	return d.Main.Kelvin, nil
}