Added required api key field. See: http://openweathermap.org/appid (#15)

* Added api key now required. See: http://openweathermap.org/appid

* Added readme info for api key

README.md

@@ -8,6 +8,13 @@ Displays the temperature and other weather related information in the status bar
 
 More features coming soon, feel free to put in requests or contribute!
 
+## Api Key
+
+Registration for a free api key at [openweathermap.org](http://openweathermap.org/appid) is required. Click the "Sign Up" button and then copy your unique api key into your atom-weather configuration.
+
+If you are getting the error message "cannot load weather", check that the api key entered in configuration matches the one you were provided by openweathermap.org.
+
+
 ## Configuration
 
 Configuration for weather can be found by going to: settings > packages > weather and click on settings.
@@ -16,6 +23,7 @@ The following configuration options are available, shown in the order they appea
 
 | Name | Description | Default |
 | ------------- | ------------- | ----------- |
+| Api Key | Obtain from http://openweathermap.org/appid. | |
 | Latitude | Latitude (ignored if zipcode location method choosen) | 0 |
 | Location Method | Whether to use zipcode or lat/long | zipcode |
 | Longitude | Longitude (ignored if zipcode location method choosen) | 0 |

lib/weather-data.coffee

@@ -42,20 +42,23 @@ class WeatherData
   latitude: ->
     atom.config.get('weather.latitude')
 
+  apikey: ->
+    atom.config.get('weather.apikey')
+
   currentWeatherUrl: ->
 
     if @locationMethod() == 'zipcode'
       location = "zip=#{@apiZipcodeFormat()}"
     else
       location = "lon=#{@longitude()}&lat=#{@latitude()}"
 
-    "http://api.openweathermap.org/data/2.5/weather?units=#{@units()}&#{location}"
+    "http://api.openweathermap.org/data/2.5/weather?units=#{@units()}&#{location}&APPID=#{@apikey()}"
 
   forecastWeatherUrl: ->
     lat = @location.lat
     lon = @location.lon
     return null unless lat? && lon?
-    "http://api.openweathermap.org/data/2.5/forecast/daily?lat=#{lat}&lon=#{lon}&units=#{@units()}&cnt=1"
+    "http://api.openweathermap.org/data/2.5/forecast/daily?lat=#{lat}&lon=#{lon}&units=#{@units()}&cnt=1&APPID=#{@apikey()}"
 
   parseUnixTimestamp: (timestamp) ->
     new Date(timestamp * 1000)

lib/weather.coffee

@@ -55,6 +55,9 @@ module.exports = Weather =
     longitude:
       type: 'number'
       default: 0.0
+    apikey:
+      type: 'string'
+      default: "http://openweathermap.org/appid"
 
   consumeStatusBar: (statusBar) ->
     @statusBarTile = statusBar.addRightTile(item: @weatherView, priority: 100)