public async Task <IActionResult> Callback(Guid paymentId, IFormCollection form)
{
if (paymentId == Guid.Empty)
{
VerifyGatewayResult failModel = VerifyGatewayResult.Failed("Ödeme bilgisi geçersiz.");
return(View("Fail", failModel));
}
//get transaction by identifier
PaymentTransaction payment = await _paymentService.GetByOrderNumber(paymentId);
if (payment == null)
{
VerifyGatewayResult failModel = VerifyGatewayResult.Failed("Ödeme bilgisi geçersiz.");
return(View("Fail", failModel));
}
PaymentGatewayRequest bankRequest = JsonConvert.DeserializeObject <PaymentGatewayRequest>(payment.BankRequest);
if (bankRequest == null)
{
VerifyGatewayResult failModel = VerifyGatewayResult.Failed("Ödeme bilgisi geçersiz.");
return(View("Fail", failModel));
}
//create provider
IPaymentProvider provider = _paymentProviderFactory.Create(bankRequest.BankName);
VerifyGatewayRequest verifyRequest = new VerifyGatewayRequest
{
BankName = bankRequest.BankName,
BankParameters = bankRequest.BankParameters
};
VerifyGatewayResult verifyResult = await provider.VerifyGateway(verifyRequest, bankRequest, form);
verifyResult.OrderNumber = bankRequest.OrderNumber;
//save bank response
payment.BankResponse = JsonConvert.SerializeObject(new
{
verifyResult,
parameters = form.Keys.ToDictionary(key => key, value => form[value].ToString())
});
payment.TransactionNumber = verifyResult.TransactionId;
payment.ReferenceNumber = verifyResult.ReferenceNumber;
payment.BankResponse = verifyResult.Message;
if (verifyResult.Installment > 1)
{
payment.Installment = verifyResult.Installment;
}
if (verifyResult.ExtraInstallment > 1)
{
payment.ExtraInstallment = verifyResult.ExtraInstallment;
}
if (verifyResult.Success)
{
//mark as paid
payment.MarkAsPaid(DateTime.Now);
await _paymentService.Update(payment);
return(View("Success", verifyResult));
}
//mark as not failed(it's mean error)
payment.MarkAsFailed(verifyResult.ErrorMessage, $"{verifyResult.Message} - {verifyResult.ErrorCode}");
//update payment transaction
await _paymentService.Update(payment);
return(View("Fail", verifyResult));
}