File Content: class-qi-blocks-rest-api.php <?php if ( ! defined( 'ABSPATH' ) ) { // Exit if accessed directly. exit; } if ( ! class_exists( 'Qi_Blocks_Rest_API' ) ) { /** * Rest API class with configuration */ class Qi_Blocks_Rest_API { private static $instance; private $namespace; public function __construct() { // Init variables. $this->set_namespace( 'qi-blocks/v1' ); // Localize main editor js script with additional variables. add_filter( 'qi_blocks_filter_localize_main_editor_js', array( $this, 'localize_script' ) ); // Function that register Rest API routes. add_action( 'rest_api_init', array( $this, 'register_rest_api_route' ) ); } /** * Module class instance * * @return Qi_Blocks_Rest_API */ public static function get_instance() { if ( is_null( self::$instance ) ) { self::$instance = new self(); } return self::$instance; } public function get_namespace() { return $this->namespace; } public function set_namespace( $namespace ) { $this->namespace = $namespace; } public function localize_script( $global ) { $global['restUrl'] = esc_url_raw( rest_url() ); $global['restNonce'] = wp_create_nonce( 'wp_rest' ); return apply_filters( 'qi_blocks_filter_localize_main_editor_js_rest_api', $global, $this->get_namespace() ); } public function register_rest_api_route() { $routes = apply_filters( 'qi_blocks_filter_rest_api_routes', array() ); if ( ! empty( $routes ) ) { foreach ( $routes as $route ) { $permission_callback = isset( $route['permission_callback'] ) && ! empty( $route['permission_callback'] ) ? $route['permission_callback'] : '__return_true'; register_rest_route( $this->get_namespace(), esc_attr( $route['route'] ), array( 'methods' => $route['methods'], 'callback' => $route['callback'], 'permission_callback' => $permission_callback, 'args' => $route['args'] ?? array(), ) ); } } } } Qi_Blocks_Rest_API::get_instance(); } Submit