What are some real-world examples of event-driven systems?

What are some real-world examples of event-driven systems?

Event-driven systems are architectures that respond to events or changes in state. Examples include online shopping carts, where actions like adding an item trigger updates in real-time, and stock trading platforms that react to market changes.

Can you explain how an online shopping cart works as an event-driven system?

Sure! In an online shopping cart, when a user adds an item, an event is triggered. This event updates the cart's total price, inventory levels, and may even notify the user of related promotions. All these actions happen asynchronously, enhancing user experience.

What about social media platforms? Are they event-driven?

Yes, social media platforms are great examples! When a user posts an update, it triggers events that notify followers, update feeds, and may even suggest related content based on user interactions.

How do event-driven systems handle errors?

Event-driven systems often implement error handling through event logging and retries. If an event fails, the system can log the error and attempt to process the event again, ensuring reliability.