wp_is_rest_endpoint

WordPress Version: 6.5

/**
 * Checks whether a REST API endpoint request is currently being handled.
 *
 * This may be a standalone REST API request, or an internal request dispatched from within a regular page load.
 *
 * @since 6.5.0
 *
 * @global WP_REST_Server $wp_rest_server REST server instance.
 *
 * @return bool True if a REST endpoint request is currently being handled, false otherwise.
 */
function wp_is_rest_endpoint()
{
    /* @var WP_REST_Server $wp_rest_server */
    global $wp_rest_server;
    // Check whether this is a standalone REST request.
    $is_rest_endpoint = wp_is_serving_rest_request();
    if (!$is_rest_endpoint) {
        // Otherwise, check whether an internal REST request is currently being handled.
        $is_rest_endpoint = isset($wp_rest_server) && $wp_rest_server->is_dispatching();
    }
    /**
     * Filters whether a REST endpoint request is currently being handled.
     *
     * This may be a standalone REST API request, or an internal request dispatched from within a regular page load.
     *
     * @since 6.5.0
     *
     * @param bool $is_request_endpoint Whether a REST endpoint request is currently being handled.
     */
    return (bool) apply_filters('wp_is_rest_endpoint', $is_rest_endpoint);
}