telegram-bot-base/Commands/Payments/PrecheckoutqueryCommand.php

<?php

/**
 * This file is part of the PHP Telegram Bot example-bot package.
 * https://github.com/php-telegram-bot/example-bot/
 *
 * (c) PHP Telegram Bot Team
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

/**
 * Pre-checkout query required for "/payment" command
 *
 * In this command you can perform any necessary verifications and checks
 * to allow or disallow the final checkout and payment of the invoice.
 */

namespace Longman\TelegramBot\Commands\SystemCommands;

use Longman\TelegramBot\Commands\SystemCommand;
use Longman\TelegramBot\Entities\ServerResponse;

class PrecheckoutqueryCommand extends SystemCommand
{
    /**
     * @var string
     */
    protected $name = 'precheckoutquery';

    /**
     * @var string
     */
    protected $description = 'Pre-Checkout Query Handler';

    /**
     * @var string
     */
    protected $version = '0.1.0';

    /**
     * Main command execution
     *
     * @return ServerResponse
     */
    public function execute(): ServerResponse
    {
        // Simply approve, no need for any checks at this point.
        return $this->getPreCheckoutQuery()->answer(true);

        // If we do make certain checks, you can define the error message displayed to the user like this.
        // return $this->getPreCheckoutQuery()->answer(false, [
        //     'error_message' => 'Registration (or whatever) required...',
        // ]);
    }
}