<?php /** * Copyright (c) Facebook, Inc. and its affiliates. All Rights Reserved * * This source code is licensed under the license found in the * LICENSE file in the root directory of this source tree. * * @package FacebookCommerce */ namespace WooCommerce\Facebook\API\Traits; defined( 'ABSPATH' ) || exit; /** * Idempotent request trait. * * @since 2.1.0 */ trait Idempotent_Request { /** @var string holds the request's idempotency key */ protected $idempotency_key; /** * Gets the value of idempotency key. * * @since 2.1.0 * * @return string */ public function get_idempotency_key() { if ( empty( $this->idempotency_key ) ) { $this->idempotency_key = wp_generate_uuid4(); } return $this->idempotency_key; } }