Broker Tour: RabbitMQ (AMQP & Beyond)

RabbitMQ is a mature broker supporting protocols like AMQP and MQTT; it’s widely deployed on-prem and cloud. You declare exchanges, bind queues, publish, and ack. It supports classic queues and stream-like features.

Core mental model: publishers → exchange (routing) → queue → consumers. Use dead-letter exchanges for retries.