Refund Method
Request refunding for a payment.
Syntax
refundtransaction.refund(transactionId, [callback])
Callback
The 'callback' parameter specifies a function which will be called when the operation completes (or an error is encountered). If the 'callback' parameter is not specified, then the method will block and will not return until the operation completes (or an error is encountered).
The callback for this method is defined as:
function(err){ }
'err' is the error that occurred. If there was no error, then 'err' is 'null'.
'err' has 2 properties which hold detailed information:
err.code err.message
Remarks
This method is used to refund a customer either the full amount, or part of the full amount which was previously paid to the merchant (you). The TransactionId parameter indicates the transaction to be refunded. If RefundType is set to rtPartial, you must also set the Amount of the refund.
After calling this method, the Ack property will indicate success or failure.