public function __construct( WC_API_Server $server ) {

		$this->server = $server;

		// automatically register routes for sub-classes
		add_filter( 'woocommerce_api_endpoints', array( $this, 'register_routes' ) );

		// maybe add meta to top-level resource responses
		foreach ( array( 'order', 'coupon', 'customer', 'product', 'report' ) as $resource ) {
			add_filter( "woocommerce_api_{$resource}_response", array( $this, 'maybe_add_meta' ), 15, 2 );
		}

		$response_names = array(
			'order',
			'coupon',
			'customer',
			'product',
			'report',
			'customer_orders',
			'customer_downloads',
			'order_note',
			'order_refund',
			'product_reviews',
			'product_category',
		);

		foreach ( $response_names as $name ) {

			/**
			 * Remove fields from responses when requests specify certain fields
			 * note these are hooked at a later priority so data added via
			 * filters (e.g. customer data to the order response) still has the
			 * fields filtered properly
			 */
			add_filter( "woocommerce_api_{$name}_response", array( $this, 'filter_response_fields' ), 20, 3 );
		}
	}