public function __construct(Request $request, OpenPlatform $openPlatform, Config $config)
{
parent::__construct($request, $config->get('app_id'), $config->get('app_secret'), $config->get('redirect_url'));
$session = new Session();
$request->setSession($session);
$this->stateless = true;
$this->request = $request;
$this->openPlatform = $openPlatform;
$this->config = $config;
}