---
title: "Discussion on \"Realtime Systems: Polling, WebSockets, SSE, and Pub/Sub\" | Hashnode"
description: "Discussion on \"Realtime Systems: Polling, WebSockets, SSE, and Pub/Sub\". From polling to WebSockets how realtime systems actually work"
url: "https://hashnode.com/posts/realtime-systems-polling-websockets-sse-and-pub-sub/6a56735e41e10ef081d2eb08"
---

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# [Realtime Systems: Polling, WebSockets, SSE, and Pub/Sub](https://abdulsamad30.hashnode.dev/realtime-systems-polling-websockets-sse-and-pub-sub?utm_source=hashnode&utm_medium=feed)

From polling to WebSockets how realtime systems actually work

Jul 14 · 5 min read · abdulsamad30.hashnode.dev  
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[Abdul Samad](https://hashnode.com/@AbdulSamad30)

@AbdulSamad30 · Karachi, Pakistan

  
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Hi, I’m Abdul Samad. A web development learner and tech enthusiast. I write about what I learn, share practical coding tips, and publish in-depth blogs on programming and modern web development. Check out my full collection of blogs on Hashnode: https://abdulsamad30.hashnode.dev/ Connect with me on X for quick updates and insights: @abdul\_sama60108

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