MissingAdapterMethods for methods we don't actually need

[thany]

How do I fix it requiring these methods?

[auth][error] MissingAdapterMethods: Required adapter methods were missing: createUser, getUser, getUserByEmail, getUserByAccount, updateUser, linkAccount, getSessionAndUser. Read more at https://errors.authjs.dev#missingadaptermethods

This is next-auth version 5.0.0-beta.29.

We connect to Entra ID for users and accounts. We don't store users ourselves. Why does it require those methods? The adapter in question only stores sessions associated with pre-existing/pre-created users.

It's also confusing when the documentation says:

Auth.js adapters are very flexible, and you can implement only the methods you need, and only create the database tables/columns that are actually going to be used.

Well, clearly that's not quite the case. I have actually implemented the functions I need, and it doesn't like that. Can we please have the documentation updated to reflect the actual requirements, instead of being vague about it?

But more importantly, how can I tell it not to bother with these functions? I would like to tell it "whatever you would do without an adapter, do that". Or alternatively, implement the required functions in the adapter and then trigger next-auth's default behaviour from there. Maybe like if there's a DefaultAdapter or something, then call that, but I don't think that's a thing.