Low Level System Design - PubSub Messaging Queue

Video Explanation

https://youtu.be/4BEzgPlLKTo

Problem statement

Check here

Project requirements

• JDK 1.8
• Maven

APIs supported in queue

• createTopic(topicName) -> topicId
• subscribe(topicId, subscriber) -> boolean
• publish(topicId, message) -> boolean
• readOffset(topidId, subscriber, offset) -> boolean