How to enable Single Active Consumer on a queue

I need to ensure a Single Active Consumer, because a consumer needs to perform computation based on a window of events and must receive all messages.

SAC is a feature that is coming with release 3.8 and allows HA with this behaviour. http://www.rabbitmq.com/consumers.html#single-active-consumer

After some test with EasyNetQ, I didn’t find a way to set "x-single-active-consumer" argument in a queue declaration. https://github.com/EasyNetQ/EasyNetQ/wiki/The-Advanced-API#declaring-queues

How can I enable SAC with EasyNetQ?

[micdenny]

Also, it is probably worth to replace Exclusive consumer feature with Single-Active consumer in future versions of EasyNetQ.

I think they are different feature, I would remove/replace Exclusive only if it has been dropped or declared obsolete in rabbitmq.client

BTW I would like to add the SAC feature on the ENQ IBus, would you guys (@dpoblacion @znanev) be so kind to propose a PR for it?

[znanev]

@dpoblacion Thanks for the heads up about SAC feature! It looks quite promising.

Here’s a way to declare a queue as SAC, using the AdvancedBus:

            var sacQueue = AdvancedBus.QueueDeclare("TestSACQueue", config => config.WithArgument("x-single-active-consumer", true).AsDurable(true));

After executing the code above, I was able to verify in the management UI that the SAC argument is set: