Messaging Application Backend

This project primarily focuses on the backend component of a messaging application developed using Node.js, Express.js, MongoDB, and Socket.IO. It contains necessary APIs and functionality to support real-time messaging between users, group chats, message encryption, user management.

Features

• User Management:

  • User registration with username and password.
  • User login/authentication with JWT.
  • User profile management (update profile, profile picture).

• Messaging:

  • Sending and receiving messages between users.
  • Real-time messaging using WebSockets with Socket.IO.
  • Support for text, images, videos, and attachments.

• Group Chats:

  • Creating, joining, and leaving group chats.
  • Sending messages to group chats and receiving messages from other participants.

• Message Encryption:

  • End-to-end encryption for messages using AES.
  • Encryption and decryption of messages to ensure privacy and security.

Project Structure

• index.js: Entry point of the application.
• routes/: Contains route definitions for different API endpoints.
• controllers/: Contains controller functions for different API endpoints.
• models/: Contains MongoDB schema definitions for user profiles, messages, and group chats.
• middlewares/: Contains middleware functions, including authentication middleware.
• config/: Contains configuration files, including JWT secret key and database connection settings.

Getting Started

1. Clone the repository:

   git clone <repository_url>

2. Install dependencies:

    npm install

3. Set up environment variables:

    PORT=3000
    MONGODB_URI=<mongodb_url>
    JWT_SECRET_KEY=<jwt_token>

4. Start the server:

   npm start

5. Access the API at http://localhost:3000.

API Documentation

The API documentation is available in the docs/ directory. It includes details about each endpoint, its requests/responses, and postman collections.

License

This project is licensed under the MIT License.