Merge pull request lossycache#2 from hikarimn/patch-1

Get a response using City ID

Author: lossycache

openweathermap.go

@@ -155,5 +155,28 @@ func (owm *OpenWeatherMap) CurrentWeatherFromCoordinates(lat, long float64) (*Cu
 	return &cwr, nil
 }
 
+func (owm *OpenWeatherMap) CurrentWeatherFromCityId(id int) (*CurrentWeatherResponse, error) {
+	if (owm.API_KEY == "") {
+		// No API keys present, return error
+		return nil, errors.New("No API keys present")
+	}
+	url := fmt.Sprintf("http://%s/data/2.5/weather?id=%d&units=imperial&APPID=%s", API_URL, id, owm.API_KEY)
+
+	body, err := makeApiRequest(url)
+	if (err != nil) {
+		return nil, err
+	}
+	var cwr CurrentWeatherResponse
+
+	// unmarshal the byte stream into a Go data type
+	jsonErr := json.Unmarshal(body, &cwr)
+	if jsonErr != nil {
+		return nil, jsonErr
+	}
+
+	return &cwr, nil
+}
+
+