---
title: "Discussion on \"Realtime Systems: Polling, WebSockets, SSE, and Pub/Sub\" | Hashnode"
description: "Discussion on \"Realtime Systems: Polling, WebSockets, SSE, and Pub/Sub\". Learn how realtime systems work with polling, long polling, SSE, WebSockets, and Pub/Sub. Understand their differences, tradeoffs, scalability, etc."
url: "https://hashnode.com/posts/realtime-systems-polling-websockets-sse-and-pub-sub/6a95be55c309517fe5d8ed10"
---

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Discussion

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

Learn how realtime systems work with polling, long polling, SSE, WebSockets, and Pub/Sub. Understand their differences, tradeoffs, scalability, etc.

Aug 31 · 18 min read · techwithsiddhant.hashnode.dev  
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## Written by

[Siddhant Gorte](https://hashnode.com/@siddhantgorte)

@siddhantgorte · Mumbai

  
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Full-stack, AI and cybersecurity - my tech playground

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