/**
* Extract referral code from GET-variable or cookie and save it into registry.
*
* @param \Magento\Framework\App\FrontControllerInterface $subject
* @param \Magento\Framework\App\RequestInterface $request
*/
public function beforeDispatch(\Magento\Framework\App\FrontControllerInterface $subject, \Magento\Framework\App\RequestInterface $request)
{
$reqCode = $request->getParam(static::REQ_REFERRAL);
$this->_toolReferralCode->processHttpRequest($reqCode);
}
