Error evaluating App.Product.findQuery

I'm trying to get data from an API like this:

    App.Store = DS.Store.extend({
        revision: 12,
        adapter: DS.RESTAdapter.create({
            host: 'http://ift.tt/1HrEJSH'
        })
    });

    App.Product = DS.Model.extend({
        name: DS.attr('string')
    });

    App.ApplicationRoute = Ember.Route.extend({
        model: function () {
            return App.Product.findQuery({show: 'sku,name', format: 'json', apiKey: 'MyApIkEy123'});
        }
    });

The error I get in the console is:

Error while processing route: index undefined is not a function (evaluating 'App.Product.findQuery({show: 'sku,name,salePrice', format: 'json', apiKey: 'MyApIkEy123'})')