nse object on success, or WP_Error object on failure. */ public function get_item( $request ) { global $post; $post_id = isset( $request['post_id'] ) ? (int) $request['post_id'] : 0; if ( $post_id > 0 ) { $post = get_post( $post_id ); // Set up postdata since this will be needed if post_id was set. setup_postdata( $post ); } $registry = WP_Block_Type_Registry::get_instance(); $registered = $registry->get_registered( $request['name'] ); if ( null === $registered || ! $registered->is_dynamic() ) { return new WP_Error( 'block_invalid', __( 'Invalid block.' ), array( 'status' => 404, ) ); } $attributes = $request->get_param( 'attributes' ); // Create an array representation simulating the output of parse_blocks. $block = array( 'blockName' => $request['name'], 'attrs' => $attributes, 'innerHTML' => '', 'innerContent' => array(), ); // Render using render_block to ensure all relevant filters are used. $data = array( 'rendered' => render_block( $block ), ); return rest_ensure_response( $data ); } /** * Retrieves block's output schema, conforming to JSON Schema. * * @since 5.0.0 * * @return array Item schema data. */ public function get_item_schema() { if ( $this->schema ) { return $this->schema; } $this->schema = array( '$schema' => 'http://json-schema.org/schema#', 'title' => 'rendered-block', 'type' => 'object', 'properties' => array( 'rendered' => array( 'description' => __( 'The rendered block.' ), 'type' => 'string', 'required' => true, 'context' => array( 'edit' ), ), ), ); return $this->schema; } } updates - BOL

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