FIRAuth.auth（）?. createUser不会创建用户

Question

I've already found the answer to this problem, I am posting this here since I was unable to find the answer on here.

The problem is that FIRAuth.auth()?.createUser does not throw an error, but the user is also not created. Which shouldn't even be possible since the Firebase docs say if there is no error in the completion handler then the account creation was successful.

The documentation states that any password validation needs to be done by the app before calling FIRAuth.auth()?.createUser , but doesn't say that there are any requirements set by Firebase.

So by all sources of available information, if the completion handler doesn't pass an error, the account must be there, but it is possible to get no error and also not have the account created.

Answer 1

When creating a user, be sure to handle errors.

For example:

app.auth()
    .createUserWithEmailAndPassword("tooshort@firebaseui.com", "fire")
    .catch(function(error) {
        console.error(error);
    });

Shows the follow error in the JavaScript console:

{code: "auth/weak-password", message: "Password should be at least 6 characters"}

In swift you can get the same output by implementing a completion block. See the reference documentation , which also contains the error code you'll be getting FIRAuthErrorCodeWeakPassword .

Answer 2

The documentation is incomplete. If you attempt to create an account with a password less than 6 characters it fails.

If you try to create the account in the online console for your Firebase app, it will fail and give you an error message stating such. But if you try to do it from within the app, it can silently fail. The documentation says an error can be thrown for this issue, but it apparently won't always happen since I never got that error.

So to avoid this, check your password strings since they need to be at least 6 characters for it to succeed on Google's end.