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IO Poller (gallery-io-poller) on cdn

Last Updated: 12/31/09

+ 6 -

Eric Ferraiuolo

YUI Developer

See 9 more by this user.

Created: 10/29/09
Last CDN Push: 11/19/09
Build Tag: gallery-2009.11.19-20
Project: YUI 3
License: YUI BSD
YUI Version: 3.0.0
Free for use.

Use just like regular Y.io, but the first parameter is the number of milliseconds to continually xhr-poll at. A new callback method/event has been added, 'modified', which will only be called when the server resource sends a 200 OK response.

The IO config object (third parameter to Y.io.poll) is just like, Y.io's config object; but a new on: { modified: function(txId, r, args){ /* your callback code here */ } } callback/event is added.

This will smartly poll the server using conditional GET requests (when method is set to GET).

Blog post on smart polling: http://925html.com/code/smart-polling/

Tags:
ericf
io

Code Sample

<script src="http://yui.yahooapis.com/3.0.0/build/yui/yui-min.js"></script>

YUI({
    //Last Gallery Build of this module
    gallery: 'gallery-2009.11.19-20'
}).use('gallery-io-poller', function(Y) {
 
	var resource = Y.io.poll(5000, 'path/to/resource/', {
		on : {
			modified : function (txId, r, args) {
 
				// the resource has been modified
 
			}
		}
	});
	resource.start();
 
});

Forum Posts

Subject	Author	Date
Awesome utility!	Jacob Fogg	03/24/10
Re: Awesome utility!	Eric Ferraiuolo	03/25/10
IE treats the server response as 304	Colin Yates	11/10/11
Re: IE treats the server response as 304	Colin Yates	11/10/11
Why are ioConfig and uri writeonce attributes?	Iliyan Peychev	05/5/12