public void Consume(ConsumeResult <string, KafkaMessage <Order> > record)
{
Console.WriteLine("------------------------------");
Console.WriteLine("Processing new order, checking for fraud");
Console.WriteLine(record.ToRecordString());
var order = record.Message.Value.Payload;
if (IsProceed(order))
{
return;
}
//Simulate a slow process of fraud detection
Thread.Sleep(5000);
if (IsFraud(order))
{
SaveOrder(order, true);
Console.WriteLine("Order is a fraud!!!!");
_orderDispatcher.Send(Topics.OrderReject, order.Email, order,
record.Message.Value.CorrelationId.ContinueWith(ConsumerGroup));
}
else
{
SaveOrder(order, false);
Console.WriteLine("Approved: " + order);
_orderDispatcher.Send(Topics.OrderApproved, order.Email, order,
record.Message.Value.CorrelationId.ContinueWith(ConsumerGroup));
}
}
public ActionResult <string> Get()
{
_batchDispatcher.Send(Topics.SendMessageToAllUsers,
Topics.UserGenerateReadingReport,
Topics.UserGenerateReadingReport,
new CorrelationId(nameof(AdminController)));
Console.WriteLine("Sent generate reports to all users");
return(Ok("Sent generate reports to all users"));
}
public ActionResult <string> Get([FromQuery] string email, [FromQuery] double amount)
{
var id = new CorrelationId(nameof(NewOrderController));
var orderId = Guid.NewGuid().ToString();
var order = new Order(orderId, amount, email);
_orderDispatcher.Send(Topics.NewOrder, email, order, id);
Console.WriteLine("New order sent succesfully");
return(Ok("New order sent succesfully"));
}
public void Consume(ConsumeResult <string, KafkaMessage <Order> > record)
{
Console.WriteLine("------------------------------");
Console.WriteLine("Processing new order, preparing email");
Console.WriteLine(record.ToRecordString());
var order = record.Message.Value.Payload;
var emailCode = "Thank you for your order! We are processing your order!";
var id = record.Message.Value.CorrelationId.ContinueWith(ConsumerGroup);
_emailDispatcher.Send(Topics.SendEmail, order.Email, emailCode, id);
}
public void Consume(ConsumeResult <string, KafkaMessage <string> > record)
{
var topic = record.Message.Value.Payload.Trim('"');
Console.WriteLine("------------------------------");
Console.WriteLine("Processing a new batch for every user");
Console.WriteLine(record.ToRecordString());
foreach (var user in GetAllUsers())
{
_dispatcher.Send(topic, user.Uuid, user,
record.Message.Value.CorrelationId.ContinueWith(ConsumerGroup));
}
}
public static void Main(string[] args)
{
using var orderDispatcher = new KafkaDispatcher <Order>();
using var emailDispatcher = new KafkaDispatcher <string>();
var random = new Random();
var email = random.NextDouble() + "@mailinator.com";
for (int i = 0; i < 10; i++)
{
var orderId = Guid.NewGuid().ToString();
var amount = random.NextDouble() * 5000 + 1;
var id = new CorrelationId(nameof(GenerateOrders));
var order = new Order(orderId, amount, email);
orderDispatcher.Send(Topics.NewOrder, email, order, id);
}
}
