WP_REST_Server::get_data_for_route( string $route, array $callbacks, string $context = 'view' ): array|null

1607	public function get_data_for_route( $route, $callbacks, $context = 'view' ) {1608		$data = array(1609			'namespace' => '',1610			'methods'   => array(),1611			'endpoints' => array(),1612		);1613 1614		$allow_batch = false;1615 1616		if ( isset( $this->route_options[ $route ] ) ) {1617			$options = $this->route_options[ $route ];1618 1619			if ( isset( $options['namespace'] ) ) {1620				$data['namespace'] = $options['namespace'];1621			}1622 1623			$allow_batch = $options['allow_batch'] ?? false;1624 1625			if ( isset( $options['schema'] ) && 'help' === $context ) {1626				$data['schema'] = call_user_func( $options['schema'] );1627			}1628		}1629 1630		$allowed_schema_keywords = array_flip( rest_get_allowed_schema_keywords() );1631 1632		$route = preg_replace( '#\(\?P<(\w+?)>.*?\)#', '{$1}', $route );1633 1634		foreach ( $callbacks as $callback ) {1635			// Skip to the next route if any callback is hidden.1636			if ( empty( $callback['show_in_index'] ) ) {1637				continue;1638			}1639 1640			$data['methods'] = array_merge( $data['methods'], array_keys( $callback['methods'] ) );1641			$endpoint_data   = array(1642				'methods' => array_keys( $callback['methods'] ),1643			);1644 1645			$callback_batch = $callback['allow_batch'] ?? $allow_batch;1646 1647			if ( $callback_batch ) {1648				$endpoint_data['allow_batch'] = $callback_batch;1649			}1650 1651			if ( isset( $callback['args'] ) ) {1652				$endpoint_data['args'] = array();1653 1654				foreach ( $callback['args'] as $key => $opts ) {1655					if ( is_string( $opts ) ) {1656						$opts = array( $opts => 0 );1657					} elseif ( ! is_array( $opts ) ) {1658						$opts = array();1659					}1660					$arg_data             = array_intersect_key( $opts, $allowed_schema_keywords );1661					$arg_data['required'] = ! empty( $opts['required'] );1662 1663					$endpoint_data['args'][ $key ] = $arg_data;1664				}1665			}1666 1667			$data['endpoints'][] = $endpoint_data;1668 1669			// For non-variable routes, generate links.1670			if ( ! str_contains( $route, '{' ) ) {1671				$data['_links'] = array(1672					'self' => array(1673						array(1674							'href' => rest_url( $route ),1675						),1676					),1677				);1678			}1679		}1680 1681		if ( empty( $data['methods'] ) ) {1682			// No methods supported, hide the route.1683			return null;1684		}1685 1686		return $data;