RFC: discuss value of Next.js middleware

Next.js supports middleware, which this library could recommend as a way to integrate with next-firebase-auth. I’d like to gather input on whether middleware provides value that the current API (withAuthUser and withAuthUserTokenSSR) does not.

My initial assessment is that middleware usage could be a good option for apps where auth info is needed on many or all pages and the server-side auth/redirect settings don’t change between pages. In this scenario, middleware could provide an AuthUser on the request object in getServerSideProps or redirect as needed.

However:

• Middleware can’t currently set return data or set React context; thus, unlike the existing API for SSR pages, AuthUser won’t be set on the client side until the Firebase JS SDK initializes.
• Middleware reduces flexibility on whether to use auth info on individual pages.

Feedback and input appreciated!

[aprendendofelipe]

Is that correct? It reads that only native Node.js APIs aren’t supported.

The problem seems to be the fs module used by the Firebase Admin SDK

[abusada]

yes, that sounds great, I would gladly prepare a pull request with the changes, I’ll try to have one ready by the end of the week