Cash Advance Builder
Builds a TransactionType.CASH_ADVANCE request (PostFinance cashback operation).
Functions
Amount to charge.
amount taking the ISO-4217 numeric currency code - the officially supported form, for example amount(1050, 2, 756) for CHF 10.50 - instead of the alphabetic code.
Amount to charge, expressed with fractionDigits fraction digits instead of currency's own default, for example amount(1050, 2, "CHF") for CHF 10.50 - useful when the value is only known at a different (or unknown) scale, for example digit-by-digit from a UI text field typed by a cashier, without needing java.math.BigDecimal. Rescaled to currency's actual minor units, rounding half up if fractionDigits is more precise than the currency supports.
Builds the TransactionRequest.
Sets pan/expiryDate/cvc2 together for manual PAN key entry ("MPKE") - see TransactionRequest.pan for field meaning. cvc2 is optional.
Sets TransactionRequest.transactionId. Optional - defaults to a random UUID if never called. Set explicitly to control it, for example to persist it before starting the transaction (see "Payment recovery" in the README).