WebSocket Chat Application

This is a simple WebSocket chat application built with Fastify and ws library.

Features

• Allows users to connect via WebSocket and send messages to each other.
• Users are authenticated using JWT tokens.
• Real-time bidirectional communication between clients and server.

Technologies Used

• Fastify (Fast and low overhead web)framework, for Node.js
• Typescript
• WebSocket (ws library)
• JWT (JSON Web Tokens)
• MongoDB (for user modeling)

Installation

1. Clone the repository:

git clone https://github.com/yousefshabaneg/fastify-users-websockets.git

2. Install dependencies:

cd fastify-users-websockets
npm install

3. Set up environment variables:

Create a .env file in the root directory and add the following:

API_PORT =
WS_PORT =
NODE_ENV =

#Database
DATABASE_URI = ""

#jwt
JWT_SECRET =
JWT_EXPIRES_IN =

Rename the .env.example to .env and fill the variables with your own values.

4. Start the server:

npm start

• The server will start running on your API_PORT or by default at 3000.
• The Websocket server will start running on your WS_PORT or by default at 3030.

Usage

1. Connect to the WebSocket server using a WebSocket client or library.
2. Send messages to other connected users by specifying the recipient's user ID and the message content like:

ws://localhost:3030?token=your-token

{
  "content": "Random Message",
  "to": "put here the user object id"
}

3. Receive messages from other users in real-time.

API Documentation

• Postman API documentation can be accessed at: Documentation Postman

• Swagger API documentation can be accessed at /documentation route after starting the server

Contributing

Contributions are welcome! Feel free to open issues or submit pull requests for any improvements or bug fixes.