Publisher Subscriber Pattern | Pub Sub | System Design

The Publish/Subscribe pattern, also known as pub/sub, is an architectural design pattern that provides a framework for exchanging messages between publishers and subscribers. This pattern involves the publisher and the subscriber relying on a message broker that relays messages from the publisher to the subscribers. The host (publisher) publishes messages (events) to a channel that subscribers can then sign up to.
Although Pub/Sub is based on earlier design patterns like message queuing and event brokers, it is more flexible and scalable. The key to this is the fact Pub/Sub enables the movement of messages between different components of the system without the components being aware of each other’s identity.
In this short video I explain the fundamental concepts behind the Pub/Sub pattern you need to know for any system design interview.
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[@siyaram2855]

Hope this channel becomes repository of all systems design and Distributed systems concepts.

[@shubhankar915]

Question : how does the topic sent the mesage to client? Does it call a callback function of the client with the message?

[@seijumimurasakibara5516]

this is very informative. It quelled a lot of the questions floating in my mind. Thank you very much for this video!!

[@siyaram2855]

Yes, I love your channel name

[@jonathancohen5664]

Very good video!

[@kevinsalmeron5048]

Your videos are great!!! Keep them coming!

[@dunezoop]

Excellent video and very well explained. Please keep this quality content coming! :)

[@rajkumarsaroj8337]

Superb

[@ashishrahi883]

Ddd

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