# Building a Real-Time Chat Application with WebSockets

DevFeed: [Building a Real-Time Chat Application with WebSockets](<https://devfeed.tech/articles/building-a-real-time-chat-application-with-websockets-28412.md>)

Original publisher: [Read original article](<https://banes.dev/building-a-real-time-chat-application-with-websockets/>)

Author: admin

Published: 2024-05-06T07:40:48Z

Content type: tutorial

Language: en

Sources: [Posts on Chris Banes](<https://devfeed.tech/sources/posts-on-chris-banes.md>)

Topics: [WebSocket](<https://devfeed.tech/topics/websocket.md>), [real-time](<https://devfeed.tech/topics/real-time.md>), [Socket.IO](<https://devfeed.tech/topics/socket-io.md>), [App](<https://devfeed.tech/topics/app.md>), [Node.js](<https://devfeed.tech/topics/node-js.md>), [servers](<https://devfeed.tech/topics/servers.md>), [browser](<https://devfeed.tech/topics/browser.md>), [Security](<https://devfeed.tech/topics/security.md>), [client](<https://devfeed.tech/topics/client.md>), [Sanitization](<https://devfeed.tech/topics/sanitization.md>), [Authentication](<https://devfeed.tech/topics/authentication.md>), [Authorization](<https://devfeed.tech/topics/authorization.md>)

Tags: [app](<https://devfeed.tech/tags/app.md>), [authentication](<https://devfeed.tech/tags/authentication.md>), [authorization](<https://devfeed.tech/tags/authorization.md>), [browser](<https://devfeed.tech/tags/browser.md>), [building](<https://devfeed.tech/tags/building.md>), [code](<https://devfeed.tech/tags/code.md>), [node](<https://devfeed.tech/tags/node.md>), [real-time](<https://devfeed.tech/tags/real-time.md>), [scalability](<https://devfeed.tech/tags/scalability.md>), [security](<https://devfeed.tech/tags/security.md>), [uncategorized](<https://devfeed.tech/tags/uncategorized.md>), [websocket](<https://devfeed.tech/tags/websocket.md>), [xss](<https://devfeed.tech/tags/xss.md>)

## AI overview

This tutorial explains how to build a real-time chat application with WebSockets and Socket.IO. It covers the two-way browser-server connection, a basic Node.js server that broadcasts chat messages, client-side message handling, and security considerations including input sanitization, authentication, authorization, and XSS prevention.

## Source excerpt

Have you ever wished your online chats felt more like actual conversations, without needing to constantly refresh the page for new messages? If so, WebSockets are the answer! WebSockets let you build real-time chat apps where messages flow instantly. Unlike regular websites, WebSockets keep a connection open between your app and the server. That means [...]