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DataSource (Async Function) (gallery-datasource-async-function) on cdn

Last Updated: 04/17/13

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John Lindal

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Created: 04/18/12
Last CDN Push: 05/16/12
Build Tag: gallery-2012.05.16-20-37
Project: YUI 3
License: YUI BSD
YUI Version: 3.5.1
Free for use.

Y.DataSource.Function requires that the function return the result. However, if you need to make any kind of server call, you need to wait for the response. Y.DataSource.AsyncFunction allows you to wait and then invoke the callback when the data is ready. This is especially useful when retrieving data from a proxy object in Mojito.

Simple example showing how to return data asynchronously.

Code Sample

<script src="http://yui.yahooapis.com/3.5.1/build/yui/yui-min.js"></script>

YUI({
    //Last Gallery Build of this module
    gallery: 'gallery-2012.05.16-20-37'
}).use('gallery-datasource-async-function', function(Y)
{
	var ds = new Y.DataSource.AsyncFunction(
	{
		source: function(callback, request)
		{
			Y.later(10, null, function()
			{
				callback(null,
				{
					data: [1,2,3],
					meta: { foo: 'bar' }
				});
			});
		}
	});
});