/**
* @param array $params simply pass $_POST into
* @return Hypercharge\PaymentNotification
* @throws Hypercharge\Errors\ArgumentError if $params empty or merchant password not set with Config::set()
*/
static function notification($params)
{
$pn = new PaymentNotification($params);
$passw = Config::getPassword();
if (empty($passw)) {
throw new Errors\ArgumentError('password is not configured! See Hypercharge\\Config::set()');
}
$pn->verify($passw);
return $pn;
}
