get_weather_forecast.js

/**

	Fetch from Weather
	This fetches a JSON feed from the Weather system.

*/
var weatherWidget = {
	fetch: function ( locId ) {
		var weatherForecastUrl 	= 'http://news.bbc.co.uk/weather/forecast/' + locId + '/Next3DaysJSON.json',
			cachebusterStr		= 'cachebuster=' + ( new Date().valueOf() ),
			jsoncallback		= 'jsoncallback=weatherWidget._dataLoaded',
			url;

		url = weatherForecastUrl + '?' + cachebusterStr + '&' + jsoncallback;

		gloader.load(
			['glow', '1', 'glow.net'], 
			{
				onLoad: function () {
					glow.net.loadScript(
						url, 
						{ 
							// MUST set this to true to stop glow adding its
							// own cachebuster
							useCache: true 
						}
					);
				}
			}
		);		
	},
	_dataLoaded: function ( data ) {
		console.log('Weather forecast loaded. Tomorrow, %o is forecast. (Full data: %o)', data.forecastContent.forecasts[0].day.weatherType, data );
	}
};

// Fetch the London forecast
weatherWidget.fetch( 8 );

get_weather_loc_id.js

/**

	The whole point of the initLocation function below
	is to get a Weather forecast 'loc id' that you can use 
	to retrieve data from the Weather system.

	It first checks to see if the MYLOC cookie is set and
	if not, you'd set-up a form to allow a postcode input.

*/
var initLocation = function () {

	console.log('locator is ready');

	// Retrieve MYLOC cookie
	var myLoc = locator.getSharedLocationId();

	// Has MYLOC cookie set
	if ( myLoc ) {
		// Call this to get data about the saved location
		locator.fetchFromDataSet( 
			
			// the shared location id
			myLoc, 
			
			// callback when data has loaded
			function(data) { 
				console.log( 'The user has set My Location to  %o (Weather forecast locId %o)', data.name, data.id ); 
			}, 
			
			// fetch from the 'Weather' dataset
			'wcw' 
		);
	} else {
		// No shared location, here's where you'd probably 
		// show a text input and attach event handlers....

		// When you want to do a postcode search you'd 
		// do something like this
		var userPostcodeInput = 'W12 7TP';
		locator.searchByPostcode(
			userPostcodeInput, 
			function ( result ) { 
				if ( result ) {
					console.log('Found a postcode %o with Weather forecast locId %o. Full result obj: %o', result.site_name, result.loc, result );
				} else {
					console.log('No result found');
				}
			}
		);
	}
};

// Kick off everything by calling locator.migrate()
// This is to ensure an old cookie will be migrated if 
// necessary. Your callback function gets executed
// when locator is ready for you.
locator.migrate( initLocation );