wp-includes/rest-api/endpoints/class-wp-rest-menu-locations-controller.php:231Prepares links for the request.
$locationstdClassarray protected function prepare_links( $location ) { $base = sprintf( '%s/%s', $this->namespace, $this->rest_base ); // Entity meta. $links = array( 'self' => array( 'href' => rest_url( trailingslashit( $base ) . $location->name ), ), 'collection' => array( 'href' => rest_url( $base ), ), ); $locations = get_nav_menu_locations(); $menu = isset( $locations[ $location->name ] ) ? $locations[ $location->name ] : 0; if ( $menu ) { $path = rest_get_route_for_term( $menu ); if ( $path ) { $url = rest_url( $path ); $links['https://api.w.org/menu'][] = array( 'href' => $url, 'embeddable' => true, ); } } return $links; }Introduced in 5.9.0. 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-menu-locations-controller.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.