RabbitMQ has a management interface that shows real-time information about your queues, including how many messages are on them, how many acks/nacks it recorded, how many consumers are on the queue, etc. If you're deploying RabbitMQ using Docker, there's a separate image that has the management interface. I'll attach images and links later. Edit Here's a screenshot of the management interface. Notice the graph that shows 850 messages in "Ready" state and 0 in "Unacked" state. The "Ready" messages are waiting to be delivered. If any had been delivered to a consumer, but the consumer hasn't acked the message, the "Unacked" count would be higher.

I've updated the article with a modified example. I hope this works better.

That's correct. I'll rework the example later today. Thanks for pointing that out.

Thank you, Nate. I'll update this article later today, I'll indicate the language too.