public Task Create(MessageContext context, CreatePaymentEvent inputEvent)
{
var payment = paymentsRepository.Create(inputEvent.Amount, inputEvent.StartTimestamp, inputEvent.Interval, inputEvent.AccountId, inputEvent.Recipient);
if (context.ReplyTo != null)
{
publishingRouter.Publish(context.ReplyTo, new SelectedPaymentsEvent {
Payments = new[] { payment }
}, context.FlowId);
}
return(Task.CompletedTask);
}
internal void Create(CreatePaymentEvent e)
{
if (Status != PaymentStatus.Unknown)
{
throw new Exception("Payment has already been created");
}
Status = PaymentStatus.Created;
CardNumber = e.CardNumber;
Amount = e.Amount;
Currency = e.Currency;
Created = e.TimeStamp;
Id = e.Id;
}
public void HandleCreatePayment(CreatePaymentEvent ev)
{
if (PaymentState != PaymentState.Unknown)
{
throw new Exception("This payment has already been created.");
}
PaymentState = PaymentState.Created;
TimeStamp = ev.Timestamp;
Id = ev.Id;
Currency = ev.Currency;
CardNumber = ev.CardNumber;
Amount = ev.Amount;
}
//this handler will actually fire off multiple events instead of just creating the payment, we should ideally refactor this with a payment service
// and split the functionality up as the process gets more complicated.
public async Task <Response <Guid> > Handle(CreatePaymentCommand request, CancellationToken cancellationToken)
{
var paymentExists = await IsPaymentDuplicate(request.Id);
if (paymentExists)
{
return(Response.Failure <Guid>($"Error, a payment with id {request.Id} already exists"));
}
// dont need to create the payment and process the events. we can get a payment by processing the events on the fly
// see GetPaymentHandler for details. For now just dispatch the necessary events.
var createPaymentEvent = new CreatePaymentEvent(DateTime.UtcNow, request.Id, request.CardNumber, request.Currency, request.Amount);
await _eventDispatcher.DispatchEvent(createPaymentEvent);
await _eventDispatcher.DispatchEvent(new PaymentSentToAcquiringBankEvent(DateTime.UtcNow, request.Id));
//TODO: Extract this to a config file property in appsettings.json
var baseUrl = "http://localhost:4000";
var response = await _acquiringBankHttpClient.Post <Guid>($"{baseUrl}/api/AcquiringBank", new
{
request.CardNumber,
request.MonthExpired,
request.YearExpired,
request.Ccv,
request.Amount,
request.Currency
});
if (!response.Error)
{
await _eventDispatcher.DispatchEvent(new PaymentSucceededEvent(DateTime.UtcNow, request.Id, response.Data));
return(Response.Success <Guid>(response.Data, response.Message));
}
else
{
await _eventDispatcher.DispatchEvent(new PaymentFailedEvent(DateTime.UtcNow, request.Id, response.Message));
return(Response.Failure(response.Message, response.Data));
}
}
public async Task Handle_ProduceBankResponseTransactionMessageAsync_Success()
{
// Arrange
var createPaymentEvent = new CreatePaymentEvent(Guid.NewGuid(), Guid.NewGuid(), new CreditCardProtected(), Money.Zero);
var createTransactionEvent = new CreateTransactionEvent(createPaymentEvent.EventID, Guid.NewGuid(), "Approved");
var deliveryMessageReport = new DeliveryMessageReport("Payment.gateway-events-v2", DateTime.Now);
var mockITopicProducer = new Mock <ITopicProducer <CreateTransactionEvent> >();
mockITopicProducer.Setup(t => t.ProduceAsync(createTransactionEvent))
.ReturnsAsync(deliveryMessageReport);
// Act
var bankEventHandler = new BankEventHandler(mockITopicProducer.Object);
await bankEventHandler.HandleAsync(createPaymentEvent);
// Assert
mockITopicProducer.Verify(mock => mock.ProduceAsync(It.IsAny <CreateTransactionEvent>()), new Times());
}
