Flutterfire: [firebase_auth] signInWithEmailAndLink works, but throws ERROR_INVALID_ACTION_CODE

[anthonyym]

Describe the bug
After opening a link sent via sendSignInWithEmailLink sent seconds ago, I am getting this error
message

PlatformException(ERROR_INVALID_ACTION_CODE, The out of band code is invalid. This can happen if the code is malformed, expired, or has already been used., null)

However it seems I am able to actually sign in as printing
await FirebaseAuth.instance.currentUser().toString()outputsFirebaseUser(Instance of 'PlatformUser')rather thannull, and I am able to print thecurrentUser().displayName`.

To Reproduce
Steps to reproduce the behavior:

1. Use sendSignInWithEmailLink to send link to email, with dynamic links and whitelisting set up in Firebase.
2. Receive the dynamic link, have the code print currentUser to check if user is null.
3. Send the signInWithEmailLink and open link.

Expected behavior
User should be able to successfully sign in, but without an error to terminal.

Additional context
Tried a link from the day before - it gave the above error message as expected, and currentUser() is null as expected.

Potentially related issue: https://github.com/FirebaseExtended/flutterfire/issues/1537

My code:

import 'package:package_info/package_info.dart';

Future<void> sendSignUpWithEmail(BuildContext context, email, name) async {
final PackageInfo packageInfo = await PackageInfo.fromPlatform();
    try {
      await FirebaseAuth.instance.sendSignInWithEmailLink(
        email: email,
        url: "https://xxxxxx.page.link/xxxxx",
        handleCodeInApp: true,
        iOSBundleID: packageInfo.packageName,
        androidPackageName: packageInfo.packageName,
        androidInstallIfNotAvailable: false,
        androidMinimumVersion: "21",
      );
    } catch (e) {
      print(e);
    }
}

Future<bool> signUpWithEmailAndLink(
      String email, String link, String name) async {
    AuthResult _authResult;

    final FirebaseAuth _auth = FirebaseAuth.instance;
    if (!await _auth.isSignInWithEmailLink(link)) {
      print("invalid signInWithEmailLink");
      return false;
    }
    if (link != null) {
      print("link: $link");

      try {
        _authResult = await _auth.signInWithEmailAndLink(
          email: email,
          link: link.toString(),
        );
      } catch (e) {
        print("catch error: $e");
        print("catch link: " + link.toString());
        return false;
      }

      FirebaseUser user = await _auth.currentUser();
      if (user != null) {
        print("signed in, user != null");

        // Update name in Firebase with stored name from last session
        var _user = _authResult.user;
        UserUpdateInfo _userUpdateInfo = UserUpdateInfo();
        _userUpdateInfo.displayName = name;
        await _user.updateProfile(_userUpdateInfo);
        return true;
      } else {
        print("not signed in, user == null");
        return false;
      }
    } else {
      print("link is null");
      return false;
    }
  }

flutter doctor:

[√] Flutter (Channel stable, v1.12.13+hotfix.5, on Microsoft Windows [Version 10.0.17763.914], locale en-US)

[√] Android toolchain - develop for Android devices (Android SDK version 29.0.2)
[√] Android Studio (version 3.5)
[√] VS Code (version 1.35.0)
[√] Connected device (1 available)

pubspec.yaml:
firebase_dynamic_links: ^0.5.0+9
firebase_auth: ^0.15.3
package_info: ^0.4.0+13

[dpedrinha]

I'm having this problem too. Some users can login, others can't no matter what.

[vladimircezar]

I have the same issue

[vladimircezar]

I've found that the error only happens if you are already registered as a user. Go to the console, remove the user you are trying to login and try again. It should work.

[dpedrinha]

I've found that the error only happens if you are already registered as a user. Go to the console, remove the user you are trying to login and try again. It should work.

Not my case. I confirmed the users that can't login aren't registered. Actually if i try to login with an already registered user, I can login with no problem.

[BomdiZane]

Same here. Anybody found a workaround to this?

[dpedrinha]

1537 seems like a light in the end of the tunnel, but I can't test it since it's working on all my devices.

Also, I'm only using it on iOS and I don't know how to clear the cache on iOS.

[janniklind]

I have made a comment in #1537, that probably fixes this as well.

[dpedrinha]

@janniklind It's the same way I'm doing. Works most of the times, but not always.

[d3roch4]

My app close on call: result = await _firebaseAuth.signInWithEmailAndLink(email: usuario.email, link: 'https://exemple.com');

Throw Exception:
Lost connection to device. *** First throw call stack: ( 0 CoreFoundation 0x00007fff23c4f02e __exceptionPreprocess + 350 1 libobjc.A.dylib 0x00007fff50b97b20 objc_exception_throw + 48 2 CoreFoundation 0x00007fff23c4ee6c +[NSException raise:format:] + 188 3 Runner 0x000000010b1c3b38 +[FIRAuthExceptionUtils raiseInvalidParameterExceptionWithReason:] + 104 4 Runner 0x000000010b1a7775 -[FIRAuth internalSignInAndRetrieveDataWithEmail:link:callback:] + 181 5 Runner 0x000000010b1a856e -[FIRAuth internalSignInAndRetrieveDataWithCredential:isReauthentication:callback:] + 382 6 Runner <…>

[Salakar]

Hey 👋

Our rework of the firebase_auth plugin as part of the FlutterFire roadmap was published over a week ago with a ton of fixes and new features. Please could you try the new version and see if this is still an issue for you? If it is then please submit a new up to date GitHub issue.

For help migrating to the new plugins please see the new migration guide: https://firebase.flutter.dev/docs/migration