WP_REST_Menus_Controller::get_item_schema() WordPress Method

	public function get_item_schema() {
		$schema = parent::get_item_schema();
		unset( $schema['properties']['count'], $schema['properties']['link'], $schema['properties']['taxonomy'] );

		$schema['properties']['locations'] = array(
			'description' => __( 'The locations assigned to the menu.' ),
			'type'        => 'array',
			'items'       => array(
				'type' => 'string',
			),
			'context'     => array( 'view', 'edit' ),
			'arg_options' => array(
				'validate_callback' => function ( $locations, $request, $param ) {
					$valid = rest_validate_request_arg( $locations, $request, $param );

					if ( true !== $valid ) {
						return $valid;
					}

					$locations = rest_sanitize_request_arg( $locations, $request, $param );

					foreach ( $locations as $location ) {
						if ( ! array_key_exists( $location, get_registered_nav_menus() ) ) {
							return new WP_Error(
								'rest_invalid_menu_location',
								__( 'Invalid menu location.' ),
								array(
									'location' => $location,
								)
							);
						}
					}

					return true;
				},
			),
		);

		$schema['properties']['auto_add'] = array(
			'description' => __( 'Whether to automatically add top level pages to this menu.' ),
			'context'     => array( 'view', 'edit' ),
			'type'        => 'boolean',
		);

		return $schema;
	}