Pay
public PayPal PayPal(Payment.Brand brand, Name billingName, PaymentBillingAddress billingAddress, String billingEmailAddress, String payerId, String transactionId, PaymentReason reason, Amount authorizedAmount, Amount verifiedAmount, PaymentThreeDSCriteria threeDigitsSecureCriteria, Operations operations, Map<String, String> extensions, String merchantOrderCode)
Parameters
payer
Unique PayPal Customer Account identification number.
transaction
Unique transaction number to identify Auth calls at PayPal.
merchant
Reference code passed to acquiring bank at the time of payment. This code is the key ID that ties back to payments data at the payment level.