AngularJS $resource usage

resource.js

// Create $resource singleton service with custom methods
// SERVICE DebugOrder

    .factory('Order', ['$resource', '$http',
        function ($resource, $http) {
            return $resource(Prefs.getResourceBaseUrl() + '/api/orders/:_id', {}, {
                'count': {method: 'PUT', params: {_id: 'count'}},
                'distinct': {method: 'PUT', params: {_id: 'distinct'}},
                'find': {method: 'PUT', params: {_id: 'find'}, isArray: true},
                'group': {method: 'PUT', params: {_id: 'group'}, isArray: true},
                'mapReduce': {method: 'PUT', params: {_id: 'mapReduce'}, isArray: true},
                'aggregate': {method: 'PUT', params: {_id: 'aggregate'}, isArray: true}
            });
        }
    ]
    )