Ext.define('MyApp.store.Retailers', {
    extend: 'Ext.data.Store',

    config: {
        storeId: 'retailersStore',
        model: 'MyApp.model.Retailer',
        pageSize: 10,
        proxy: {
            type: 'ajax',
            method: 'GET',
            url: 'myapp/api/retailers',
            startParam: 'offset',
            reader: {
                type: 'json',
                rootProperty: 'data.entries',
                totalProperty: 'count'
            }
        }
    }
});