WebSocket Chat (Socket.IO)

A tiny real time chat app using Node.js, Express, and Socket.IO.

What be included

• Send messages: type and hit Send
• Live receive: other tabs get the message instantly
• Typing indicator: shows bouncin dots while a user be typin
• Auto scroll: keeps the latest message in view without stretchin the panel

Requirements

• Node.js (any modern LTS be fine)

Run it

Install deps:

npm install

Start the server:

npm start

Open:

• http://localhost:3000

To test chat proper, open two tabs and send messages between em.

Project map

• index.js: Express server + Socket.IO events
• public/index.html: UI and Socket.IO client code

Socket events

• Client to server

  • user:message { text }
  • user:typing { typing: true|false }

• Server to client

  • server:message { text }
  • server:typing { id, typing }

Notes

• Static files be served from public/
• If port 3000 be taken, free it up or change the port in index.js