How do I implement authentication for WebSocket connections?

How do I implement authentication for WebSocket connections?

To implement authentication for WebSocket connections, you can use token-based authentication. First, authenticate the user via HTTP and then pass the token to the WebSocket connection.

What kind of token should I use?

You can use JWT (JSON Web Tokens) as they are compact, URL-safe, and can be easily verified on the server.

How do I verify the token on the server side?

On the server side, you can decode the JWT using a library like jsonwebtoken in Node.js, and check its validity and expiration.

Can I use sessions instead of tokens?

Yes, you can use sessions, but it requires maintaining session state on the server, which can be less scalable than token-based methods.