why findOrCreate in the readme example?

[fbialek]

Maybe this is a stupid question as this is about an example - but why in the readme example there is following snippet:

    // And finally, you can find, or create, the user
    let user = await findOrCreateUser(username, hashedPassword);

I would assume that in most cases you will want only to find the user while authenticating.
Are there some use cases of creating users in the auth process?

[sergiodxa]

If you use the same strategy instance for both login and signup you need to be able to do a find or create.

You can also create a different strategy instance for each form and there only do a find or a create depending if it's login or signup.