rabbitmq - Sending last known good state to new consumers

Question

I'm using rabbitmq to propagate a singular varying state to multiple consumers (one-to-many relationship). When a new consumer connects, it declares its own queue and binds it to the exchange where state updates are published. The state is always published "completely", so no deltas just yet.

I need a way to propagate the last known good state to a newly connected consumer, or to somehow make this consumer "catch up" with the rest. Using a more tightly coupled communication system (like GRPC) it's easy to send snapshot on initial connection, also using things like Retained Messages in mqtt.

How can I achieve similar behaviour in rmq?

question from:https://stackoverflow.com/questions/65897619/sending-last-known-good-state-to-new-consumers

Answer 1

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