💬 Real-Time Chat System

A scalable, full-stack live chatting application built with FastAPI, WebSockets, and MongoDB. The platform features real-time messaging, user authentication, typing indicators, and online user status tracking.

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✨ Features

• ⚡ Real-Time Messaging: Instant bidirectional communication powered by WebSockets (websocket.py).
• 🔐 Authentication System: Secure user registration and login workflows (auth.py).
• 🟢 Online User Tracking: Live updates showing active/online users in real time.
• ✍️ Typing Indicators: Dynamic feedback when another user is actively typing.
• 🗄️ Persistent Storage: Message history and user profiles stored reliably in MongoDB (database.py, models.py).

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🛠️ Tech Stack

• Backend: Python, FastAPI, WebSockets
• Database: MongoDB
• Frontend: HTML5, JavaScript (ES6+ WebSockets API), CSS
• Data Validation & ORM: Pydantic

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📂 Project Structure

Chat-System/
├── __init__.py        # Package initialization
├── auth.py            # Authentication endpoints & password hashing
├── database.py        # MongoDB connection setup
├── index.html         # Frontend chat interface layout
├── main.py            # FastAPI application entry point
├── models.py          # Pydantic data schemas and database models
├── routes.py          # API route definitions
├── script.js          # Client-side WebSocket connection & UI handlers
└── websocket.py       # WebSocket connection manager & messaging logic