How many time Anonymous users are created in Firebase

Question

I would like to use the signInAnonymously feature from firebase but I'd like to know how it works exactly.

• Is this anonymous user added as any other user in Firebase (but without an email or password) ?
• Is it automatically removed after a certain time ?
• If I call this method on each app launch. Will it create a new user everytime ? How will it know how te reuse an old one ? Local Storage ?
• So will it create another user in database if my users connects from another device ?

Thanks a lot

Answer 1

• An anonymous user account is similar to any other user account in Firebase, except that there is no way to identify the user.

• Anonymous users are not automatically removed.

• Each time you call the API to create an anonymous user, a new account will be created. To re-use the existing account, you should listen for the auth state when the app starts and only create a new user account if the user isn't signed in yet.

• If the same (anonymous) user signs in from multiple devices, they will get a separate account on each. If that is not what you want for your use-case, you should require one of the identified authentication methods (email/password, Facebook, Google, etc)/