Authorize a payment

Reserve money on the customer’s payment account.

Overview

The authorization call verifies payment details and checks for sufficient funds on the customer account. If the check is successful, the funds are reserved for at least 7 days. If the authorization is not debited within this period, the authorization expires and the amount is released.

The authorization does not trigger a debit transaction. It only reserves the amount for the customer’s payment type. To execute money transfer you have to perform a charge after authorization.

This transaction is possible for selected payment methods only. For more details, see Payment methods.

Example

In general, the authorization call on a payment type instance requires at least the amount, the currency and the returnUrl.

$unzer     = new UnzerSDK\Unzer('s-priv-xxxxxxxxxx');

$authorizationInstance = new Authorization(100.00, 'EUR', $returnUrl);
$transaction = $unzer->performAuthorization($authorizationInstance, 's-crd-9wmri5mdlqps');

$unzer     = new UnzerSDK\Unzer('s-priv-xxxxxxxxxx');
$card      = $unzer->fetchPaymentType('s-crd-9wmri5mdlqps');
$authorize = $card->authorize(100.0, 'EUR', 'https://your.return.url');

Arguments to Unzer::performAuthorization

Properties of Authorization for Payment requests

The list below contains properties that are relevant for an authorization transaction.

[Deprecated] Arguments to Unzer::authorize

Arguments to authorize of payment type instance

Transaction results

Transaction results

The authorization object is updated with the data from the payment API response. It contains the paymentId (for example, s-pay-1), the transactionId, and other properties. The transaction object provides getter functions to access these properties.

The properties isSuccess, isPending and isError indicate the result of the transaction. Only one of these three can be true.

If the transaction fails, the payment API returns an error resource. In the SDK, this is handled as an UnzerSDK\Exceptions\UnzerApiException. Make sure to catch the exception type and handle it as properly.

For an example transaction, see Authorize a payment.

try {
    $unzer     = new UnzerSDK\Unzer('s-priv-xxxxxxxxxx');
    
    $authorizationInstance = new Authorization(100.00, 'EUR', $returnUrl);
    $transaction = $unzer->performAuthorization($authorizationInstance, 's-crd-9wmri5mdlqps');

    if ($transaction->isSuccess) {
        $this->handleSuccessState(); // e.g. redirect to the success page in your shop
    }
    // Transaction has to be pending at this point.
    $this->handlePendingState(); // e.g. redirect to the pending page in your shop
} catch (UnzerApiException $e) {
    // Transaction failed. API returned error resource.
    $this->log($e->getClientMessage());
    $this->log($e->getMerchantMessage());
    $this->handleFailureState(); // e.g. redirect to the failure page of your shop
} catch (RuntimeException $e) {
    $merchantMessage = $e->getMessage();
}

See also

• Charge a payment
• Cancel an authorization (reversal)