Message Queue Concepts

Summary

A middleman that holds messages between producers and consumers, decoupling them in time and allowing work to be processed asynchronously, reliably and at a different pace than it's created.

• 1Diagram a scenario where a queue smooths out a traffic spike, e.g. sending emails.
• 2Learn the basic vocabulary: producer, consumer, queue, message broker.
• 3Understand why queues improve reliability — a message waits until a consumer is ready.