Event-Driven Architecture

Welcome! In this lesson, we'll explore Event-Driven Architecture (EDA) and how Redis Pub/Sub is perfect for it.

EDA is a software design pattern where components communicate by reacting to changes in state, known as events.

• Think of it like a news channel: producers publish news (events), and anyone interested (consumers) can tune in.

EDA revolves around three main components:

• Events: A record of something that happened (e.g., 'user registered', 'order placed'). They are immutable facts.
• Event Producers: Services that detect an event and publish it to an event channel.
• Event Consumers: Services that subscribe to event channels and react to specific events.

These components communicate indirectly.