This is a simple chat application built using MongoDB, Express.js, and React. It allows users to register, login, search for other users, and engage in real-time chat. The application also displays whether users are online or offline.

• User registration and authentication
• User login/logout functionality
• Real-time chat functionality
• User search functionality
• Seen/ Not seen message functionality
• User can upload images
• Online/Offline status indication

• MongoDB: A NoSQL database used for storing user data and chat messages.
• Express.js: A web application framework for Node.js used for building the backend server.
• React: A JavaScript library for building user interfaces used for the frontend.
• Socket.io: A library for real-time web applications enabling bidirectional communication between web clients and servers.

1. Clone the repository:

git clone https://github.com/mohkh833/chatapp.git

2. Navigate to the project directory:

cd chat-app

3. Install dependencies for both backend and frontend:

cd backend
npm install

cd ../frontend
npm install

4. Configure environment variables:

   • Create a .env file in the backend directory.
   • Define the following environment variables:

   MONGODB_URI=your_mongodb_connection_string
   JWT_SECRET=your_jwt_secret
   

5. Run the backend server:

cd backend
npm start

6. Run the frontend:

cd frontend
npm start

7. Open your browser and navigate to http://localhost:3000 to access the application.

1. Register for a new account or log in if you already have an account.
2. Once logged in, you can search for other users by their username.
3. Click on a user's name to start a conversation.
4. Chat with the selected user in real-time.
5. Users' online/offline status is indicated beside their username.
6. Users Message status is indicated beside message

• Implement user profile management functionality.
• Add support for multimedia messages (videos).
• Enhance the user interface and user experience.
• Implement typing indicators in chat.

Contributions are welcome! Please feel free to open issues or submit pull requests.

This project is licensed under the MIT License - see the LICENSE file for details.

• Special thanks to Socket.io for providing real-time communication capabilities.
• Thanks to the creators of MongoDB, Express.js, and React for their amazing technologies.