Is it possible to subscribe to 2 or more AWS SQS queue with-in the same application

[madhub]

For example if I have 2 SQS queue's https://sqs.us-east-1.amazonaws.com/012345678910/MyQueue1, https://sqs.us-east-1.amazonaws.com/012345678910/MyQueue2, it is possible to subscribe & process messages from MyQueue1 & MyQueue2 with in the same application ?

By looking at the library , it looks like it is possible by adding AddSQSPoller with different queue names. My understanding is that if a message is registered with handler , irrespective from which queue message is received, if handler is found for a message it will be invoked. In other wards handlers are not tied to the queue . Is this correct ?

builder.Services.AddAWSMessageBus(builder =>
{
    builder.AddSQSPoller("https://sqs.us-east-1.amazonaws.com/012345678910/MyQueue1");
    builder.AddMessageHandler<ChatMessageHandler, ChatMessage>("chatMessage");

    builder.AddSQSPoller("https://sqs.us-east-1.amazonaws.com/012345678910/SomeOtherQueue");
    builder.AddMessageHandler<ChatMessageHandler, ChatMessage>("chatMessage");
});

[ashovlin]

Yes, you can subscribe to multiple queues from a polling application. A single BackgroundService will poll both queues, with a long-running task for each queue.

You only need to register the message handler one time, they are not tied to a specific queue. Note that they are registered and retrieved as scoped services, so the handler will be created once per each message that is received.

• aws-dotnet-messaging/src/AWS.Messaging/Services/HandlerInvoker.cs

  Lines 57 to 59 in db7703f

  	using (var scope = _serviceProvider.CreateScope())
  	{
  	var handler = scope.ServiceProvider.GetService(subscriberMapping.HandlerType);