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We have to design a message queue supporting publisher-subscriber model.

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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

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We have to design a message queue supporting publisher-subscriber model.

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java interviews threading interview-questions lld system-design oops-in-java low-level-design machine-coding

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