Verify the HTTP Server

Start Development Server

Start the application using the development script.

Run the following command from the project root:

```bash
npm run dev
```

You should see a message similar to:

```text
HTTP and Socket.IO server started
```

Open the health endpoint in your browser:

`http://localhost:3000/health`

Expected response:

```json
{
  "status": "ok"
}
```

At this point, the HTTP server and Socket.IO server are initialized. No browser client has connected yet, so the Socket.IO connection callback will not execute until we implement the frontend.

Start and Verify the Server

Introduction to Socket.IO

Environment and Project Setup

Create the Express and Socket.IO Server

Connect the Browser to Socket.IO

Implement Real-Time Messaging

Master Socket.IO Events and Acknowledgements

Implement Socket.IO Rooms and Private Messaging

Socket.IO Authentication and Security

Connection Lifecycle and Reconnection

Testing and Troubleshooting

Scale Socket.IO Using Redis Adapter

Production Deployment and Best Practices

Handle Client Connections

Learn Socket.IO from scratch by building a real-time chat application with Express, rooms, private messaging, authentication, and Redis scaling.

Socket.IO with Node.js: Build a Complete Real-Time Chat Application

Start and Verify the Server - Socket.IO with Node.js: Build a Complete Real-Time Chat Application

Start and Verify the Server

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