---
title: "Slack Architecture"
url: https://daily.dev/posts/slack-architecture-kbo0i6xzz
source_url: https://systemdesign.one/slack-architecture/
type: article
source: "Community Picks"
published: 2023-11-02T17:30:05.967Z
updated: 2023-12-07T12:02:45.284Z
tags: ["career", "slack"]
reading_time: 31
upvotes: 147
comments: 0
language: en
---

> ## Documentation Index
> Fetch the complete documentation index at: https://daily.dev/llms.txt
> Use this file to discover all available pages before exploring further.

# Slack Architecture

**[Community Picks](https://daily.dev/sources/community)** · 31 min read · 147 upvotes · 0 comments

## Summary

Slack is a real-time messaging platform used by organizations for communication between team members. The system design of Slack depends on the design of the Real-Time Platform and Real-Time Presence Platform. The client publishes chat messages through an HTTP POST request to the web API, and the Slack client fetches the initial screen by making an HTTP POST request to the web API for login, which returns a snapshot of the entire workspace. The chat service persists the chat messages in the chat database and delegates them to the subscribed gateway servers over HTTP. The gateway server broadcasts the chat messages to the subscribed users over WebSocket.

## Full article

daily.dev links to this article rather than hosting it. Read it at the original source: <https://systemdesign.one/slack-architecture/>

## Similar posts on daily.dev

- [Don’t just attend KubeCon \+ CloudNativeCon, Merge Forward your experience\!](https://daily.dev/posts/don-t-just-attend-kubecon-cloudnativecon-merge-forward-your-experience--l0rpp73x8) · CNCF · 0 upvotes · 0 comments
- [Announcing H2 2026 KCDs](https://daily.dev/posts/announcing-h2-2026-kcds-m96goajm1) · CNCF · 1 upvotes · 0 comments
- [Two months of Open Community Groups](https://daily.dev/posts/two-months-of-open-community-groups-asf52zhbs) · CNCF · 0 upvotes · 0 comments
- [CNCF Unveils Schedule for KubeCon \+ CloudNativeCon Europe 2026](https://daily.dev/posts/cncf-unveils-schedule-for-kubecon-cloudnativecon-europe-2026-ikhcoa5cb) · CNCF · 2 upvotes · 0 comments
- [CNCF Debuts KubeCon \+ CloudNativeCon Japan 2026 Schedule](https://daily.dev/posts/cncf-debuts-kubecon-cloudnativecon-japan-2026-schedule-xp5pyudub) · CNCF · 1 upvotes · 0 comments

---

Tags: [#career](https://daily.dev/tags/career), [#slack](https://daily.dev/tags/slack)

[View this post on daily.dev](https://daily.dev/posts/slack-architecture-kbo0i6xzz)