<?php
/**
 * Elasticsearch PHP client
 *
 * @link      https://github.com/elastic/elasticsearch-php/
 * @copyright Copyright (c) Elasticsearch B.V (https://www.elastic.co)
 * @license   http://www.apache.org/licenses/LICENSE-2.0 Apache License, Version 2.0
 * @license   https://www.gnu.org/licenses/lgpl-2.1.html GNU Lesser General Public License, Version 2.1
 *
 * Licensed to Elasticsearch B.V under one or more agreements.
 * Elasticsearch B.V licenses this file to you under the Apache 2.0 License or
 * the GNU Lesser General Public License, Version 2.1, at your option.
 * See the LICENSE file in the project root for more information.
 */


declare(strict_types = 1);

namespace Elasticsearch\Serializers;

interface SerializerInterface
{
    /**
     * Serialize a complex data-structure into a json encoded string
     *
     * @param  mixed $data The data to encode
     * @return string
     */
    public function serialize($data): string;

    /**
     * Deserialize json encoded string into an associative array
     *
     * @param  string $data    JSON encoded string
     * @param  array  $headers Response Headers
     * @return string|array
     */
    public function deserialize(?string $data, array $headers);
}
