signOut CognitoSignOutResult different behavior on iOS and Android

[lokalathlet]

Description

The "signedOutLocally" result in airplane Mode is different on iOS (false) and Android (true).
My expectation is, that I can signOut successful on both environments -> "signedOutLocally": true

See the logs for iOS and Android:
iOS:
`┌──────────────────────────────────────────────────────────────────────────────────────────────────────────────

    │ [debug] | 13:12:12 481ms | ::signOut result: CognitoSignOutResult {

    │   "exception": "NetworkException {\n  \"message\": \"The request failed due to a network error.\",\n  \"recoverySuggestion\": \"Ensure that you have an active network connection\",\n  \"underlyingException\": \"POST https://cognito-idp.eu-central-1.amazonaws.com/? failed: SocketException: Failed host lookup: 'cognito-idp.eu-central-1.amazonaws.com' (OS Error: nodename nor servname provided, or not known, errno = 8)\"\n}",

    │   "signedOutLocally": false

    │ }

    └──────────────────────────────────────────────────────────────────────────────────────────────────────────────

Android:
┌──────────────────────────────────────────────────────────────────────────────────────────────────────────────

I/flutter ( 4454): │ [debug] | 13:30:42 760ms | ::signOut result: CognitoSignOutResult {

I/flutter ( 4454): │ "hostedUiException": "HostedUiException {\n "message": "Failed to perform Hosted UI sign out",\n "recoverySuggestion": "See underlyingException for more details",\n "underlyingException": "PlatformException(CANCELLED, com.amazonaws.amplify.amplify_auth_cognito.HostedUiException$CANCELLED, Cause: null, Stacktrace: com.amazonaws.amplify.amplify_auth_cognito.HostedUiException$CANCELLED\n\tat com.amazonaws.amplify.amplify_auth_cognito.AmplifyAuthCognitoPlugin.cancelCurrentOperation(AmplifyAuthCognitoPlugin.kt:587)\n\tat com.amazonaws.amplify.amplify_auth_cognito.AmplifyAuthCognitoPlugin.onNewIntent(AmplifyAuthCognitoPlugin.kt:542)\n\tat io.flutter.embedding.engine.FlutterEngineConnectionRegistry$FlutterEngineActivityPluginBinding.onNewIntent(FlutterEngineConnectionRegistry.java:799)\n\tat io.flutter.embedding.engine.FlutterEngineConnectionRegistry.onNewIntent(FlutterEngineConnectionRegistry.java:437)\n\tat io.flutter.embedding.android.FlutterActivityAndFragmentDelegate.on

I/flutter ( 4454): │ "globalSignOutException": null,

I/flutter ( 4454): │ "revokeTokenException": "RevokeTokenException {\n "message": "Failed to revoke token",\n "recoverySuggestion": "See underlyingException for more details",\n "underlyingException": "NetworkException {\n \"message\": \"The request failed due to a network error.\",\n \"recoverySuggestion\": \"Ensure that you have an active network connection\",\n \"underlyingException\": \"POST https://cognito-idp.eu-central-1.amazonaws.com/? failed: SocketException: Failed host lookup: 'cognito-idp.eu-central-1.amazonaws.com' (OS Error: No address associated with hostname, errno = 7)\"\n}"\n}",

I/flutter ( 4454): │ "signedOutLocally": true

I/flutter ( 4454): │ }

I/flutter ( 4454): └──────────────────────────────────────────────────────────────────────────────────────────────────────────────
`

Categories

• Analytics
• API (REST)
• API (GraphQL)
• Auth
• Authenticator
• DataStore
• Notifications (Push)
• Storage

Steps to Reproduce

1. SignIn successfully
2. AirPlane Mode on
3. SignOut

Screenshots

No response

Platforms

• iOS
• Android
• Web
• macOS
• Windows
• Linux

Flutter Version

3.24.0

Amplify Flutter Version

2.3.0

Deployment Method

Amplify Gen 2

Schema

No response

[NikaHsn]

@lokalathlet Sorry that you are facing this issue and thanks for reporting it. We will look into this and get back to you when we have updates.

[NikaHsn]

@lokalathlet do you use sign-in with web UI?

[lokalathlet]

@NikaHsn, you're right. In the Android usecase we're signing in via signing with webui. In the iOS usecase WE login via passkeys finally using signin method. I will doublecheck this, in case we are using passkeys on Android, we getting the same result: signout = false , if we are offline.

[lokalathlet]

[debug] | 9:52:56 764ms | ::signOut result: CognitoSignOutResult { "hostedUiException": null, "globalSignOutException": null, "revokeTokenException": "RevokeTokenException {\n \"message\": \"Failed to revoke token\",\n \"recoverySuggestion\": \"See underlyingException for more details\",\n \"underlyingException\": \"NetworkException {\\n \\\"message\\\": \\\"The request failed due to a network error.\\\",\\n \\\"recoverySuggestion\\\": \\\"Ensure that you have an active network connection\\\",\\n \\\"underlyingException\\\": \\\"POST https://cognito-idp.eu-central-1.amazonaws.com/? failed: SocketException: Failed host lookup: 'cognito-idp.eu-central-1.amazonaws.com' (OS Error: No address associated with hostname, errno = 7)\\\"\\n}\"\n}", "signedOutLocally": true }
On Android it works as expected: sign in via passkeys, Set flight modeon, User Press logout, signedOutLocally": true

[tyllark]

Hi @lokalathlet, could you please provide a code snippet for how you are signing in with passkey on iOS.