Connection Testing

Start the backend:

```bash
npm run dev
```

Open the application in your browser:

`http://localhost:3000`

Open the browser developer tools and navigate to the Console tab.

You should see a message similar to:

```text
Connected to server: abc123...
```

In the backend terminal, you should also see the server-side connection log if you have registered the connection handler.

To test multiple connections:

1. Open the application in Chrome.
2. Open another browser tab.
3. Open the same application in a different browser.
4. Check the backend terminal.

You should see a new connection log for each browser connection.

Test the First Socket Connection

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

Understand Client and Server Events

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

Test the First Socket Connection - Socket.IO with Node.js: Build a Complete Real-Time Chat Application

Test the First Socket Connection

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