/** @var \NAttreid\BPayment\IBPaymentClientFactory @inject */
public $bPaymentFactory;

protected function createComponentBPayment($name) {
    $bPayment = $this->bPaymentFactory->create($this, $name);
    
    $bPayment->setOrderId(123456);
    $bPayment->setCurrency('CZK');
    $bPayment->setLanguage('CZ');
    $bPayment->addItem('Polozka', 4, 999.9);
    
    $bPayment->onSuccess[] = function($orderId, $authorizationCode) {
        
    }
    $bPayment->onError[] = function($errorCode, $errorDescription) {
        
    }
    $bPayment->onCancel[] = function() {
        
    }
    
    return $bPayment;
}