This is a chat application created using Websockets communication and built with the MERN stack. The application allows users to send and receive messages in real-time and stores the messages in a database. It provides a seamless experience for users to engage in conversations and exchange messages, files in real-time. With ChatApp, users can easily connect with friends, colleagues, or any other individuals and have interactive discussions.

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• Real-time Messaging: Users can exchange messages with others in real-time, providing instant communication.
• Message History: ChatApp keeps track of message history, allowing users to view previous conversations.
• Online Presence: The application displays the online status of users. When a user connects or disconnects from the application.
• File Upload: Users can upload files (e.g., images, documents) to share with other users during conversations.
• WebSocket Communication: The project utilizes WebSockets to establish real-time, bidirectional communication between the server and clients. This enables instant messaging and updates without the need for frequent page refreshes.
• Secure Authentication: User passwords are securely stored using the bcrypt hashing algorithm. JWT (JSON Web Tokens) are used for authentication and authorization.
• User Profile: Each user has a profile that displays their username and profile picture. Users can update their profile picture, providing a personalized touch to their chat experience.
• Notifications: Real-time notifications are provided when a new message is received, even if the user is in a different chat room or has the application minimized.
• Avatar Generation: Avatars are generated based on the username to provide personalized profile images for users.

The ChatApp was developed using the following technologies:

• Node.js: A JavaScript runtime environment used for server-side development.
• Express.js: A server-side framework for building RESTful APIs and handling server-side logic.
• WS (WebSocket): A JavaScript library for enabling real-time, bidirectional communication between clients and servers using websockets.
• React: A JavaScript library for building user interfaces.
• MongoDB: A NoSQL database used to store user data and chat history.
• Tailwind CSS: A utility-first CSS framework used for styling the frontend.

To get started with the chat application, follow the steps below:

1. Clone the repository: git clone https://github.com/junaid10144/chatApp.git
2. Navigate to the project directory: cd chatApp
3. Install the dependencies:
   • Backend: Navigate to the api folder and run npm install
   • Frontend: Navigate to the client folder and run npm install
4. Create a .env file in the api folder and provide the necessary environment variables. You can refer to the .env.example file for the required variables.
5. Start the development servers:
   • Backend: In the api folder, run npm run start
   • Frontend: In the client folder, run npm run dev

Now, you can access the chat app by opening your browser and visiting http:https://localhost:5173.

The project follows a specific folder structure:

• api/: Contains the backend code, including server setup, routes, and models.
• client/: Contains the frontend code, including React components, styles, and assets.

We would like to express our gratitude to the following resources and libraries that have been instrumental in the development of ChatApp:

• bcryptjs: Library for hashing and comparing passwords.
• cookie-parser: Middleware for parsing cookies in Express.
• cors: Middleware for enabling Cross-Origin Resource Sharing (CORS).
• dotenv: Module for loading environment variables from a .env file.
• jsonwebtoken: Library for generating and verifying JSON Web Tokens (JWT).
• mongoose: Object Data Modeling (ODM) library for MongoDB.
• multer: Middleware for handling multipart/form-data, used for file uploading.
• express: Web framework for Node.js.
• ws: JavaScript library for enabling real-time, bidirectional communication between clients and servers using websockets.

• axios: Library for making HTTP requests from the client.
• react: JavaScript library for building user interfaces.
• react-dom: Package for rendering React components.
• lodash: Utility library that provides helpful functions for working with arrays, objects, and more.

Development dependencies (Frontend):

• @types/react: Type definitions for React.
• @types/react-dom: Type definitions for React DOM.
• @vitejs/plugin-react: Vite plugin for React support.
• autoprefixer: PostCSS plugin for adding vendor prefixes to CSS.
• postcss: CSS post-processor tool.
• tailwindcss: Utility-first CSS framework.
• vite: Build tool for modern web development.

Thank you for considering ChatApp! If you have any further questions or feedback, please feel free to reach out.

Contributions to the ChatApp are welcome! If you find any issues or want to add new features, please feel free to open a pull request.

This project is licensed under the MIT License.