openPaystack method

Implementation

openPaystack({
  required BuildContext context,
  required String uniqueRefrenceID,
  required String callbackUrl,
  required double amount,
  required String emailId,
  required String payStackKey,
}) async {
  try {
    final request = PaystackTransactionRequest(
      reference: uniqueRefrenceID,
      secretKey: payStackKey,
      email: emailId,
      amount: amount * 100,
      currency: PaystackCurrency.usd,
      channel: [
        PaystackPaymentChannel.mobileMoney,
        PaystackPaymentChannel.card,
        PaystackPaymentChannel.ussd,
        PaystackPaymentChannel.bankTransfer,
        PaystackPaymentChannel.bank,
        PaystackPaymentChannel.qr,
        PaystackPaymentChannel.eft,
      ],
    );

    print(request.secretKey);

    /// initialized paystack transaction
    final initializedTransaction =
        await PaymentService.initializeTransaction(request);

    if (!initializedTransaction.status) {
      /// Response for payment failures events
      return UniPaymentResponse(
        initializedTransaction.message,
        false,
        initializedTransaction.data!.reference.toString(),
      );
    }

    await PaymentService.showPaymentModal(
      context,
      transaction: initializedTransaction,
      callbackUrl: callbackUrl,
    );

    PaystackTransactionVerified payStackData =
        await PaymentService.verifyTransaction(
      paystackSecretKey: payStackKey,
      initializedTransaction.data?.reference ?? request.reference,
    );

    if (payStackData.data.status == PaystackTransactionStatus.success) {
      return UniPaymentResponse(
        "${payStackData.data.status}-${payStackData.message}",
        true,
        payStackData.data.id.toString(),
      );
    } else {
      /// Return response for payment failures events
      return UniPaymentResponse(
        "${payStackData.data.status}-${payStackData.message}",
        false,
        payStackData.data.id.toString(),
      );
    }
  } catch (e) {
    /// Return response for payment failures events
    return UniPaymentResponse(
      e.toString(),
      false,
      "Payment_Failed",
    );
  }
}