[Auth] Support basic sign in and hosted UI sign in in same app

[haverchuck]

1. A short description

When a user signs in using the standard Auth APIs, but the amplify configuration includes OAuth values, the user is briefly presented with a chrome custom tab when attempting to sign out. Signout appears to happen successfully, but the UX is jarring.

2. The version of Amplify Android you're using
   1.16.13

3. The code you're using to call Amplify Android

 private fun onSignOut (@NonNull flutterResult: Result) {
    try {
      Amplify.Auth.signOut(
              {  -> prepareSignOutResult(flutterResult)},
              { error -> errorHandler.handleAuthError(flutterResult, error)}
      );
    } catch (e: Exception) {
      errorHandler.prepareGenericException(flutterResult, e)
    }
  }

4. Any relevant logs

Note: This is being run within amplify-flutter.

W/AWSMobileClient(12847): Failed to parse HostedUI settings from store. Defaulting to awsconfiguration.json
W/AWSMobileClient(12847): java.lang.NullPointerException: Attempt to invoke virtual method 'int java.lang.String.length()' on a null object reference
W/AWSMobileClient(12847): 	at org.json.JSONTokener.nextCleanInternal(JSONTokener.java:121)
W/AWSMobileClient(12847): 	at org.json.JSONTokener.nextValue(JSONTokener.java:98)
W/AWSMobileClient(12847): 	at org.json.JSONObject.<init>(JSONObject.java:165)
W/AWSMobileClient(12847): 	at org.json.JSONObject.<init>(JSONObject.java:182)
W/AWSMobileClient(12847): 	at com.amazonaws.mobile.client.AWSMobileClient.getHostedUIJSON(AWSMobileClient.java:682)
W/AWSMobileClient(12847): 	at com.amazonaws.mobile.client.AWSMobileClient$2.run(AWSMobileClient.java:583)
W/AWSMobileClient(12847): 	at com.amazonaws.mobile.client.internal.InternalCallback$1.run(InternalCallback.java:101)
W/AWSMobileClient(12847): 	at java.lang.Thread.run(Thread.java:923)
D/AWSMobileClient(12847): initialize: Cognito HostedUI client detected
D/AWSMobileClient(12847): Inspecting user state details
I/amplify:flutter:auth_cognito_hub_evnet_stream_handler(12847): AuthPlugin successfully initialized
D/AWSMobileClient(12847): Inspecting user state details
I/TetheringManager(12847): registerTetheringEventCallback:com.amazonaws.amplify.amplify_auth_cognito_example
D/AWSMobileClient(12847): Inspecting user state details
D/AWSMobileClient(12847): waitForSignIn: userState:SIGNED_OUT
D/IdentityManager(12847): Signing out...
D/AWSMobileClient(12847): Inspecting user state details

Please use syntax highlighting for any code/logs.

[richardmcclellan]

When a user signs in using the standard Auth APIs

Did you use Amplify.Auth.signIn or Amplify.Auth.signInWithWebUi?

[haverchuck]

@richardmcclellan I used Amplify.Auth.signIn. This behavior is NOT observed if I remove the OAuth block from the amplifyconfiguration file.

[richardmcclellan]

Got it. I believe this is a limitation of AWSMobileClient - we don't support basic sign in and hosted UI sign in in the same app, you have to choose one or the other. It will require a non-trivial amount of work to enable it (probably a full re-write) Do you know of customers asking for this functionality?

[kjones]

We definitely need this and I think many other apps would also. Most apps present, SSO options as well as a sign-up/sign-in with username/password.

[raphire08]

Yeah, we would love to have this feature for Flutter library. We are facing the issue on android side only.

[ekarmazin]

Supporting this feature request, would be great to use at least hosted UI + socials

[CamronLDNF]

Yes prrrrlease, we need this feature! I've spent quite some time moving from a different provider to Amplify Flutter (which I understand is based on Amplify Android) with the belief that basic sign-in and hosted social sign-in is supported. And only while researching this bug that I encountered, I learned that the root cause of the bug is that basic sign-in + hosted UI for social sign-in isn't supported. Gah! So yes, we need this feature.

[Lettly]

+1

[niyonx]

+1

[artahc]

+1

[rajd90]

+1
I need this for my flutter app aws-amplify/amplify-flutter#1207

[MohsinJamadar09]

Got it. I believe this is a limitation of AWSMobileClient - we don't support basic sign in and hosted UI sign in in the same app, you have to choose one or the other. It will require a non-trivial amount of work to enable it (probably a full re-write) Do you know of customers asking for this functionality?

Hi,

I want to use hosted UI signIn, I have also kept OAuth block in amplifyConfiguration.
but still I am getting this error
Failed to parse HostedUI settings from store. Defaulting to awsconfiguration.json

I am using Amplify.Auth.signInWithWebUI

could you please help what I am missing?

[RaviJarwal]

+1

[Papashkin]

+1

[gpanshu]

Hello @haverchuck if upgrade is an option for you and your users I would recommend upgrading to our V2 library where you can supply the option that you would like to sign in with even if you have something else in your configuration.

https://docs.amplify.aws/lib/q/platform/android/

val options = AWSCognitoAuthSignInOptions.builder().authFlowType(AuthFlowType.USER_SRP_AUTH).build()

[github-actions]

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