extjs 4 tree store RESTful

i m working with Extjs 4 Tree with Rails 3 as backend & was wondering is there any REST support as for TreeStore as we have it for开发者_JS百科 data store? I tried a lot of googling but could nt find any full fledged tutorial.. I want to dynamically add nodes to tree & tree store should be synchronized so that next time tree loads newly created node also exists..

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Yes. This is handled by your chosen proxy. Simply set the Ext.data.TreeStore's proxy to type: rest.

Please see the following for reference:

http://docs.sencha.com/ext-js/4-0/#!/api/Ext.data.TreeStore-cfg-proxy

and

http://docs.sencha.com/ext-js/4-0/#!/api/Ext.data.proxy.Rest