gistfile1.js

Ext.define('Ext.data.proxy.Facebook', {
    extend: 'Ext.data.proxy.Proxy',
    alias: 'proxy.facebook',

    constructor: function(config) {
        this.callParent([config]);

        this.api = config.api;
        //ensures that the reader has been instantiated properly
        this.setReader(this.reader);
    },

    read: function(operation, callback, scope) {
        var me = this;
        FB.api(me.api, function(result) {
        	var reader = me.getReader();
        	var resultSet = reader.read(result.data);
        	
        	Ext.apply(operation, {
                resultSet: resultSet
            });

            operation.setCompleted();
            operation.setSuccessful();
            Ext.callback(callback, scope || me, [operation]);
        });  
    },

    clear: Ext.emptyFn
});