RabbitMQ - Fanout exchange | Theoretical explanation
Fanout exchange | Theoretical explanation
A fanout exchange copies and routes a received message to all queues that are bound to it regardless of routing keys or pattern matching as with direct and topic exchanges. The keys provided will simply be ignored.
Fanout exchanges can be useful when the same message needs to be sent to one or more queues with consumers who may process the same message in different ways.