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titleBelow is an example of how to initiate a refund of 10.00.

Code Block
// Minimal parameter set
TlvTree paymentParams = TlvTree.Empty();

paymentParams.AddBinAddEnum(ArkosTags.SelectedService, new byte[] { 0x00 }PaymentServiceID.Refund);
// Amounts are in BCD. In most cases, all 3 amounts should be the same value.

paymentParams.AddBin(ArkosTags.TransactionAmount, new byte[] { 0x00, 0x00, 0x00, 0x00, 0x10, 0x00 });
paymentParams.AddBin(ArkosTags.AmountAuthorised, new byte[] { 0x00, 0x00, 0x00, 0x00, 0x10, 0x00 });
paymentParams.AddBin(ArkosTags.TransactionAmountBeforeAdjustment, new byte[] { 0x00, 0x00, 0x00, 0x00, 0x10, 0x00 });

// The system needs to provide the Date and Time of this transaction, and the local TimeZone
Calendar cal = Calendar.getInstance();
int utcOffsetMinutes = cal.getTimeZone().getOffset(cal.getTimeInMillis()) / 1000 / 60;
byte[] utcOffset = new byte[2];
utcOffset[0] = (byte) (utcOffsetMinutes / 60);
utcOffset[1] = (byte) (utcOffsetMinutes % 60);
paymentParams.AddEMVDate(ArkosTags.TransactionDate, cal.get(Calendar.YEAR) % 100, cal.get(Calendar.MONTH) + 1, cal.get(Calendar.DAY_OF_MONTH));
paymentParams.AddEMVTime(ArkosTags.TransactionTime, cal.get(Calendar.HOUR), cal.get(Calendar.MINUTE), cal.get(Calendar.SECOND));
paymentParams.AddBin(ArkosTags.LocalTimezone, utcOffset);

paymentParams.AddAscii(ArkosTags.SelectedLanguage, "en");

// Call to the doPayment API, sending the Arkos configuration, and parameters as a byte Array
PaymentResult result = arkos.doPayment(configuration, paymentParams.AsBytes());

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  • Refund Reference Data may be identical to the Reference Data of the original Service, but this is not mandatory and not checked.

  • Refund Reference Data is not used to retrieve the transaction data of the original Service, but it is stored in the transaction database for the Refund.

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titleBelow is an example
on
of how to initiate a refund of 10.00 with
a
Reference Data 1234567890 to an Original Transaction.

Code Block

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// 

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Minimal parameter set
TlvTree paymentParams = TlvTree.Empty();

paymentParams.AddEnum(ArkosTags.SelectedService, PaymentServiceID.Refund);
// Amounts are in BCD. In most cases, all 3 amounts should be the same value.
paymentParams.AddBin(ArkosTags.TransactionAmount, new byte[] { 0x00, 0x00, 0x00, 0x00, 0x10, 0x00 });
paymentParams.AddBin(ArkosTags.AmountAuthorised, new byte[] { 0x00, 0x00, 0x00, 0x00, 0x10, 0x00 });
paymentParams.AddBin(ArkosTags.TransactionAmountBeforeAdjustment, new byte[] { 0x00, 0x00, 0x00, 0x00, 0x10, 0x00 });

// The system needs to provide the Date and Time of this transaction, and the local TimeZone
Calendar cal = Calendar.getInstance();
int utcOffsetMinutes = cal.getTimeZone().getOffset(cal.getTimeInMillis()) / 1000 / 60;
byte[] utcOffset = new byte[2];
utcOffset[0] = (byte) (utcOffsetMinutes / 60);
utcOffset[1] = (byte) (utcOffsetMinutes % 60);
paymentParams.AddEMVDate(ArkosTags.TransactionDate, cal.get(Calendar.YEAR) % 100, cal.get(Calendar.MONTH) + 1, cal.get(Calendar.DAY_OF_MONTH));
paymentParams.AddEMVTime(ArkosTags.TransactionTime, cal.get(Calendar.HOUR), cal.get(Calendar.MINUTE), cal.get(Calendar.SECOND));
paymentParams.AddBin(ArkosTags.LocalTimezone, utcOffset);

paymentParams.AddAscii(ArkosTags.SelectedLanguage, "en");

//Adding 

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an 

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original 

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transaction 

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with 

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the 

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reference data as a 

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child 

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of 

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payment params
TlvTree originalTransaction = paymentParams.AddChild(ArkosTags.OriginalTransaction);
originalTransaction.AddEnum(ArkosTags.SelectedService, PaymentServiceID.Payment);
originalTransaction.AddEMVDate(ArkosTags.TransactionDate, cal.get(Calendar.YEAR) % 100, cal.get(Calendar.MONTH) + 1, cal.get(Calendar.DAY_OF_MONTH));
originalTransaction.AddEMVTime(ArkosTags.TransactionTime, cal.get(Calendar.HOUR), cal.get(Calendar.MINUTE), cal.get(Calendar.SECOND));
originalTransaction.AddBin(ArkosTags.LocalTimezone, utcOffset);
originalTransaction.AddAscii(ArkosTags.RefundReferenceData,"1234567890");

// Call to the doPayment API, sending the Arkos configuration, and parameters as a byte Array
PaymentResult result = arkos.doPayment(configuration, paymentParams.AsBytes());

  • As this tag is optional, a check is done on the latter. If the Tag is absent, the original transaction section is not included.

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