//Function to store Payment and Payment State entities
public async Task <bool> SavePaymentProcessAndState(paymentProcessViewModel model, string response)
{
var savePaymentProcess = new PRProcessPayment
{
creditCardNumber = model.creditCardNumber,
cardHolder = model.cardHolder,
expirationDate = model.expirationDate,
securityCode = model.securityCode,
amount = model.amount
};
var savePaymentState = new PaymentState
{
paymentState = response,
processPaymentID = savePaymentProcess.processPaymentID
};
await _unitOfWork.PaymentProcess.AddAsync(savePaymentProcess);
await _unitOfWork.PaymentState.AddAsync(savePaymentState);
await _unitOfWork.CompleteAsync();
return(true);
}
// POST api/values
public async Task <IActionResult> Payment(paymentProcessViewModel model)
{
//Setting values for the business rules
int bL1 = 20; //First Business Rule
int bL2 = 500; //Second Business Rule
//Checking for invalid request
if (!ModelState.IsValid)
{
return(BadRequest("The request is invalid: 400 bad request"));
}
//Forming the objects to be passed to the any of the payment gateway if the condition of the business logic is met
var gatewayParams = new paymentGatewayParametersViewModel
{
creditCardNumber = model.creditCardNumber,
cardHolder = model.cardHolder,
expirationDate = model.expirationDate,
securityCode = model.securityCode,
amount = model.amount
};
//Checking if the amount to be paid is less that bL1
if (model.amount <= bL1)
{
//If business logic is true, send parameters to ICheapPaymentGateway
//Sending the parameters converted to JSON to ICheapPayment GateWay
var postData = JsonConvert.SerializeObject(gatewayParams);
// Send the JSON parameters to ICheapPayment Gateway URL endpoint
//var client = "URL goes in here";
var request = ""; //Parsing the request from the endpoint
//If payment is successful at the ICheapPayment Gateway endpoint
if (request == "successfull")
{
var completePaymentTransaction = await SavePaymentProcessAndState(model, request);
if (completePaymentTransaction)
{
return(StatusCode(StatusCodes.Status200OK));
}
else
{
return(StatusCode(StatusCodes.Status500InternalServerError));
}
}
//If payment is not successful at the ICheapPayment Gateway endpoint
else
{
return(StatusCode(StatusCodes.Status400BadRequest));
}
}
//Checking if the amount to be paid is greater than bL1 and lesser than bL2
if (model.amount > bL1 || model.amount <= bL2)
{
//If business logic is true, send parameters to IExpensivePaymentGateway
//Sending the parameters converted to JSON to IExpensivePayment GateWay
var postData = JsonConvert.SerializeObject(gatewayParams);
// Send the JSON parameters to IExpensivePayment Gateway URL endpoint
//var client = "URL goes in here";
var request = ""; //Parsing the request from the endpoint
//If payment is successful at the IExpensivePayment Gateway endpoint
if (request == "successfull")
{
var completePaymentTransaction = await SavePaymentProcessAndState(model, request);
if (completePaymentTransaction)
{
return(StatusCode(StatusCodes.Status200OK));
}
else
{
return(StatusCode(StatusCodes.Status500InternalServerError));
}
}
//If payment is not successful at the IExpensivePayment Gateway endpoint
else
{
return(StatusCode(StatusCodes.Status400BadRequest));
}
}
//Checking if the amount to be paid is greater than bL2
if (model.amount > bL2)
{
//If business logic is true, send parameters to IPremiumPaymentGateway
//Sending the parameters converted to JSON to IPremiumPayment GateWay
var postData = JsonConvert.SerializeObject(gatewayParams);
// Send the JSON parameters to IPremiumPayment Gateway URL endpoint
//var client = "URL goes in here";
var request = ""; //Parsing the request from the endpoint
//If payment is successful at the IPremiumPayment Gateway endpoint
if (request == "successfull")
{
var completePaymentTransaction = await SavePaymentProcessAndState(model, request);
if (completePaymentTransaction)
{
return(StatusCode(StatusCodes.Status200OK));
}
else
{
return(StatusCode(StatusCodes.Status500InternalServerError));
}
}
//If payment is not successful at the IPremiumPayment Gateway endpoint
else
{
return(StatusCode(StatusCodes.Status400BadRequest));
}
}
return(StatusCode(StatusCodes.Status400BadRequest));
}
