/home/kueuepay/public_html/vendor/league/oauth2-server/src/Entities/Traits/EntityTrait.php
<?php
/**
 * @author      Alex Bilbie <hello@alexbilbie.com>
 * @copyright   Copyright (c) Alex Bilbie
 * @license     http://mit-license.org/
 *
 * @link        https://github.com/thephpleague/oauth2-server
 */

namespace League\OAuth2\Server\Entities\Traits;

trait EntityTrait
{
    /**
     * @var string
     */
    protected $identifier;

    /**
     * @return mixed
     */
    public function getIdentifier()
    {
        return $this->identifier;
    }

    /**
     * @param mixed $identifier
     */
    public function setIdentifier($identifier)
    {
        $this->identifier = $identifier;
    }
}
Error Handling

Error Handling

In case of an error, the API will return an error response containing a specific error code 400, 403 Failed and a user-friendly message. Refer to our API documentation for a comprehensive list of error codes and their descriptions.