Chat Web App

A simple real-time chat web application built using WebSockets, where all users join a common chat room. Messages are shared instantly, and all chat data disappears once the chat session ends.

Features

Real-time messaging using WebSockets

Single shared (common) chat room

Messages are broadcast to all connected users

No authentication or user accounts

No permanent message storage (in-memory only)

Tech Stack

Frontend: HTML, CSS, JavaScript

Backend: Node.js

Real-time Communication: WebSockets

How It Works

Users connect to the server via WebSockets

All connected users join a common chat room

Messages are instantly broadcast to every user

Messages are stored only in memory and cleared when users disconnect or the server restarts

Purpose

This project was created during the learning process to understand:

WebSocket-based real-time communication

Server-side message broadcasting

Managing multiple users in a shared chat room Future Improvements

Add user authentication and usernames

Support multiple chat rooms

Introduce persistent message storage

Implement typing indicators and read receipts

Use a Publish–Subscribe (Pub/Sub) messaging model to improve scalability and decouple message broadcasting (e.g., Redis Pub/Sub) for handling multiple servers