Real-Time Chat Application

This project is a real-time chat application built with modern web technologies, providing features like user authentication, group chats, friend requests, and real-time messaging. It uses Socket.IO for real-time communication and MongoDB for database management.

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Features

• User Authentication: Login and register functionality with JWT-based authentication.
• Real-Time Messaging: Instant chat updates using WebSocket communication.
• Group Chats:
  • Create and manage chat rooms.
  • Add or remove members from groups.
• Friend Requests: Send, accept, or decline friend requests.
• Message Types: Supports both text and photo messages.

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Technologies Used

• Node.js: Backend runtime environment.
• Express.js: Web framework for building RESTful APIs.
• Socket.IO: Enables real-time, bidirectional communication.
• MongoDB: NoSQL database for managing user, chat, and message data.
• Mongoose: ODM (Object Data Modeling) library for MongoDB.
• dotenv: For environment variable management.

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Project Structure

Models

1. User Schema:
   • Manages user credentials and their associated chats.
2. Message Schema:
   • Handles both text and photo messages.
   • Validates the content based on its type.
3. Room Schema:
   • Manages group chat data, including users and room details.
4. Friend Request Schema:
   • Tracks friend request status between users.

Routes and Functionalities

• Authentication: /login, /register
• Friend Management:
  • Get friend list: /friends
  • Send request: /addfriend/:id
  • Accept/Decline requests: /friendrequests/accept, /friendrequests/decline
• Group Management:
  • Create group: /groups/creategroup
  • Manage members: /groups/:id/addmember, /groups/:id/removemember
  • Fetch group members: /groups/:id/members
• Messaging:
  • Fetch all messages in a chat: GetAll
  • Send messages: send-Messages

WebSocket Events

• joinRoom: Join a specific chat room.
• GetAll: Retrieve all messages in a chat room.
• send-Messages: Send a message to a specific chat room.
• get-Messages: Broadcast messages to other users in the room.

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Environment Variables

Create a .env file in the root directory with the following keys:

DB_URI=your_mongodb_connection_string
YOUR_SECRET=your_jwt_secret_key

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How to Run the Project

1. Clone the repository:

   git clone https://github.com/your-username/your-repo.git
   cd your-repo

2. Install dependencies:

   npm install

3. Configure environment variables:

   • Create a .env file with the keys mentioned above.

4. Start the server:

   npm start

5. Open the application at:

   • Frontend: http://localhost:3000
   • you can find frontend side at that link Lomza-web-fronted
   • Backend: http://localhost:433

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Contact

If you have any questions or suggestions, feel free to reach out:

• GitHub: SerhatcanBakir
• Email: serhat2534serhat@outlook.com