How to Handle Authentication in Frontend and API Calls?

For managing authentication, a common approach is to use JWTs or HTTP-only cookies for session info. If your Express setup is stateless, you'll typically send a JWT with each request. The server checks the token via middleware and returns an appropriate HTTP status code. Make sure your frontend handles these errors to provide a good user experience!

There's no one-size-fits-all solution; it really depends on your application structure. I personally use a mix of methods. For instance, I send a POST request for login that returns a JWT stored in localStorage. When making API calls that require authentication, I include the token in the Authorization header. Typically, each page can make its own API calls as needed.

Yes, definitely pass cookies with Axios for authenticated requests. Once they're set up, you can easily access your protected endpoints. Just remember to handle things like password resets and validation emails on the server side. It might also be worth brushing up on REST API concepts and HTTP verbs if you haven't already!