What are the differences between publish-subscribe and request-response?

What are the differences between publish-subscribe and request-response?

The publish-subscribe model allows messages to be sent to multiple subscribers without direct communication, while request-response involves a direct query and response between a client and server.

Can you give me an example of each model?

Sure! In publish-subscribe, a news service publishes articles that multiple users can subscribe to. In request-response, a user might request weather data from a server and receive a specific response.

Which model is better for real-time applications?

Publish-subscribe is often better for real-time applications because it allows for immediate updates to all subscribers without needing to request information.

Are there any drawbacks to using publish-subscribe?

Yes, one drawback is that it can lead to message overload if too many messages are published, making it hard for subscribers to keep up.