REST API

Refund

This section describes how to process a refund using a reference to the original transaction for a full or partial transaction amount. Stand-alone credits are also supported in this Acceptance Devices solution. For more information, see Stand-Alone Credit.
Follow these steps to process a refund:
  1. Create a
    TransactionParameters
    object and provide the required information for the payment.
  2. Retrieve the
    transactionIntent
    value from the
    mposUI
    object and use the
    startActivity
    method to initiate the transaction flow.
    val transactionParameters = TransactionParameters.Builder() .refund(“transactionIdentifier”) //Specify amount and currency for partial refunds //.amountAndCurrency(BigDecimal(1.00), Currency.EUR) .build() val transactionIntent = mposUi.createTransactionIntent(transactionParameters) startActivityForResult(transactionIntent, MposUi.REQUEST_CODE_PAYMENT)
  3. After the transaction is completed and the Summary screen is dismissed,
    onActivityResult
    is triggered. This action returns information about the previous transaction.
    override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {     super.onActivityResult(requestCode, resultCode, data)       if (requestCode == MposUi.REQUEST_CODE_PAYMENT) {         when (resultCode) {             // Result code from a successful transaction             MposUi.RESULT_CODE_APPROVED -> {                 val transactionIdentifier = data?.getStringExtra(MposUi.RESULT_EXTRA_TRAN SACTION_IDENTIFIER)                 Toast.makeText(findViewById(android.R.id.content),"Transaction approved! \nIdentifier: $transactionIdentifier",  Toast.LENGTH_LONG).show()             }             // Result code from a declined, aborted or failed transaction             MposUi.RESULT_CODE_FAILED -> {              Toast.makeText(findViewById(android.R.id.content), "Transaction was decline d, aborted, or failed",  Toast.LENGTH_LONG).show()             }         }     } }
  4. You can get the full transaction object by retrieving the
    latestTransaction
    from the
    mposUI
    object.
    val transactionObject = mposUi.latestTransaction