Can you explain what is meant by an event-driven architecture?

Event-Driven Architecture (EDA) is an approach to building systems where components interact through the transmission and processing of events.

Main ideas:

• An event is a message indicating that something has happened (e.g., a user clicked a button, data has been updated).
• Components respond to events asynchronously, without blocking each other.
• The system becomes more flexible and scalable because components are loosely coupled.

Example: In a web application, when a file is uploaded, an "file uploaded" event is generated, which is processed by a separate service for file analysis, without delaying the user.

This approach is often used in microservices, high-load systems, and where reactivity is important.