Manual acknowledgement for consumed messages?

Hi guys, I have a non-trivial case, where I have a queue with multiple message types and a single consumer subscribed to this queue.

Additionally, I want to buffer messages (based on some business logic) and only acknowledge them, when I am sure that they are successfully processed.

Basically what I need is to disable the default ack behavior that acks the message once the onMessage handler finishes execution, and I want to send the ack manually, based on the business logic of my application.

I want to achieve something like this:

     var orderEvents = new List<IMessage<OrderEvent>>();
     var positionEvents = new List<IMessage<PositionEvent>>();

     bus.Advanced.Consume(queue, registration =>
            {
                registration
                    .Add<OrderEvent>((message, info) => orderEvents.Add(message))
                    .Add<PositionEvent>((message, info) => positionEvents.Add(message));
            });

     .... <Several Business Rules Later> ...

     // queue.Acknowledge doesn't exist, It's just for illustration.
     orderEvents.ForEach(orderEventMessage => 
                       queue.Acknowledge(orderEventMessage))

If someone can point me to an API that exists and can achieve this, and I somehow skipped it, or a workaround that I can use, that would be great.

Thanks in advance!

Regards.

[poteb]

Reading the RabbitMQ confirm documentation (https://www.rabbitmq.com/confirms.html) you’ll see that all the acks/rejects are in the Received scope. I don’t see how this can be done if RabbitMQ doesn’t support manual ack outside the Received scope.

[kgrosvenor]

Did this ever get done. It is quite important when using RabbitMQ to be able conditionally ackknowledge messages or reject them or requeue etc, this would be a great addition and i would move to this library if it did this