Event-Driven Architecture Basics
Understand the principles of event-driven architectures and how Lambda functions act as responders to events generated by other services.
What is Event-Driven?
Imagine a restaurant where orders are taken, food is cooked, and bills are paid. In a traditional setup, each step might wait for the previous one to finish.
Event-Driven Architecture (EDA) is different. It's like having many independent stations that react to things happening around them, without direct instructions.
Understanding Events
At its core, an event is simply a signal that "something happened." It's a record of a state change or an action that occurred in a system.
- User clicks a button
- A file is uploaded
- A new order is placed
- A sensor detects motion
These are all examples of events!
All lessons in this course
- Event-Driven Architecture Basics
- Invoking Lambda with API Gateway
- S3 and SQS Event Triggers
- Scheduled Invocations with EventBridge