Message Queues & RabbitMQ From First Principles

Understand why message queues exist, how they work internally, and how to build production-grade systems with RabbitMQ. Covering queue data structures, AMQP routing, exchange types, acknowledgement patterns, dead letter queues, concurrency, and a full comparison of RabbitMQ, Kafka, BullMQ, and Inngest — this module takes you from the problem to production.

📄️ Message Queues: The Problem They Solve

Discover why message queues exist by watching a SaaS system fail without them. Covers the coupling problem, custom implementation limits, and when to reach for a third-party broker.

📄️ How Message Queues Work: Internals and Queue Types

Open the hood on message queues. Learn the data structures behind FIFO, priority, delay, and circular queues, how acknowledgement and persistence work internally, and when to reach for each queue type.