wp-includes/rest-api/endpoints/class-wp-rest-pattern-directory-controller.php:192Prepare a raw block pattern before it gets output in a REST API response.
$itemobject$requestWP_REST_RequestWP_REST_ResponseOne hook fires while WP_REST_Pattern_Directory_Controller::prepare_item_for_response() runs, in this order:
Filters the REST API response for a block pattern.
public function prepare_item_for_response( $item, $request ) { // Restores the more descriptive, specific name for use within this method. $raw_pattern = $item; $prepared_pattern = array( 'id' => absint( $raw_pattern->id ), 'title' => sanitize_text_field( $raw_pattern->title->rendered ), 'content' => wp_kses_post( $raw_pattern->pattern_content ), 'categories' => array_map( 'sanitize_title', $raw_pattern->category_slugs ), 'keywords' => array_map( 'sanitize_text_field', explode( ',', $raw_pattern->meta->wpop_keywords ) ), 'description' => sanitize_text_field( $raw_pattern->meta->wpop_description ), 'viewport_width' => absint( $raw_pattern->meta->wpop_viewport_width ), 'block_types' => array_map( 'sanitize_text_field', $raw_pattern->meta->wpop_block_types ), ); $prepared_pattern = $this->add_additional_fields_to_object( $prepared_pattern, $request ); $response = new WP_REST_Response( $prepared_pattern ); /** * Filters the REST API response for a block pattern. * * @since 5.8.0 * * @param WP_REST_Response $response The response object. * @param object $raw_pattern The unprepared block pattern. * @param WP_REST_Request $request The request object. */ return apply_filters( 'rest_prepare_block_pattern', $response, $raw_pattern, $request ); }Introduced in 5.8.0. Unchanged from 6.7.7 through 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
src/wp-includes/rest-api/endpoints/class-wp-rest-pattern-directory-controller.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.