public async Task <IActionResult> Post([FromBody] CreateChargeRequest request)
{
// Note that explicitly checking ModelState is not required for controllers with the [ApiController]
// attribute, so there is no code here for that here.
var entity = new Charge
{
IdempotentKey = request.IdempotentKey,
CreatedOn = DateTimeOffset.UtcNow,
Status = ChargeStatus.Pending,
Amount = request.Amount,
Currency = request.Currency,
Description = request.Description,
CardNumber = request.CardNumber,
Cvv = request.Cvv,
ExpiryMonth = request.ExpiryMonth,
ExpiryYear = request.ExpiryYear
};
_db.Charges.Add(entity);
try
{
await _db.SaveChangesAsync();
}
catch (DbUpdateException exception) when(exception.IsViolationOfUniqueIndex())
{
// This handles the case where someone is double-posting a charge with the same IdempotentKey.
_logger.LogWarning("A charge with idempotency key {IdempotentKey} attempted to double post.", request.IdempotentKey);
return(Conflict());
}
var acquiringBankRequest = new AcquiringBankRequest
{
Amount = entity.Amount,
Currency = entity.Currency,
CardNumber = entity.CardNumber,
Cvv = entity.Cvv,
ExpiryMonth = entity.ExpiryMonth,
ExpiryYear = entity.ExpiryYear
};
var success = await _bank.TrySendAsync(acquiringBankRequest, out var bankChargeId);
if (!success)
{
_logger.LogError("The acquiring bank for charge id {Id} rejected the payment.", entity.Id);
}
entity.Status = success ? ChargeStatus.Success : ChargeStatus.Failed;
entity.BankChargeId = bankChargeId;
await _db.SaveChangesAsync();
var result = new GetChargeResponse(entity);
return(CreatedAtAction("Get", new { id = entity.Id }, result));
}
public async Task <IActionResult> Get(Guid id)
{
var entity = await _db.Charges.FindAsync(id);
if (entity is null)
{
_logger.LogWarning("A charge with id {Id} was not found.", id);
return(NotFound());
}
var result = new GetChargeResponse(entity);
return(Ok(result));
}
public GetChargeResponse GetById(int id)
{
try
{
var response = new GetChargeResponse();
var bc = new ChargeComponent();
response.Charge = bc.GetById(id);
return(response);
}
catch (Exception ex)
{
var httpError = new HttpResponseMessage()
{
StatusCode = (HttpStatusCode)422,
ReasonPhrase = ex.Message
};
throw new HttpResponseException(httpError);
}
}
