Check MFA status about amazon-cognito-identity-dart-2 HOT 16 CLOSED

Yes, it returns a challengeName, search challenge in this repo.

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I mean check it once the user is already logged in.
In my case, I am making a settings screen, where there is an option to activate 2MFA, so that's why I need to check it.

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So, in the login process, you already know if the user enters the MFA codes or not.
Based on this data you can determine if 2MFA is activated, correct?

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Normally yes, but what if the user is logged in in multiple devices, and in one of them disables/enables 2MFA? That would not update on all devices.

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I think you should keep this value in your DB then.

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That's a bad practice.

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@lain-ke
please add this code into your flutter/.pub-cache-hosted/pub.dartlang.org/amazon-cognito-identity-dart-2-0.1.9/lib/src/cognito_user.dart and build the app.
Try to call this method. If it works I'll publish a new version.
In my case I don't have the key MFAOptions in the response, but I suppose this is adjustable in the AWS admin panel.

/// This is used by an authenticated user to get the MFAOptions
  Future<List> getMFAOptions(callback) async {
    if (!(_signInUserSession != null && _signInUserSession.isValid())) {
      throw Exception('User is not authenticated');
    }

    final paramsReq = {
      'AccessToken': _signInUserSession.getAccessToken().getJwtToken(),
    };
    final userData = await client.request('GetUser', paramsReq);
    print(userData);
    return userData['MFAOptions'];
  }

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Hello, I also don't have the MFAOptions key parameter, is there any way to enable it?

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Yeap, in this case, it works:

await cognitoManager.cognitoUser.enableMfa();
var mfaOptions = await cognitoManager.cognitoUser.getMFAOptions();
print(mfaOptions);

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@lain-ke do you have any feedback? Is this code is useful?

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I'll appreciate it if you'd tell me how to use '.getMFAOptions()' method.
The sample code furaiev showed above contains 'cognitoManager', but it doesn't work.
(Actually, my AndroidStudio says 'IT'S UNDEFINED NAME!' , so I can't complete compiling.)

I've looked up about cognitoManager in the documentation for hundred times, but I couldn't find about that.
How do I compose cognitoManager, or, how do I use '.getMFAOptions()'?

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@ShogoTsuchiya cognitoManager is a custom class that keeps CognitoUserPool and CognitoUser.
You can create and use directly CognitoUser.

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Thank you for your reply. I tried direct use like this.

await cognitoUser.getMFAOptions();

but it always returns NULL...

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it means that server returns userData without MFAOptions

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Thanks!
You mean I can get MFAOptions info as a part of attributes, like 'sub' and 'email_verified' ?

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Looks like the MFA options are in userData['UserMFASettingList'], so the current implementation of cognitoUser.getMFAOptions() will always return null.

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