issue with "User-Agent was already configured successfully"

[mobiletoly]

Description

This issue is related to amplify_datastore.dart file.

in method:

@override
  Future<void> configure({
    AmplifyOutputs? config,
    required AmplifyAuthProviderRepository authProviderRepo,
  }) async {
...
}

this code:

try {
      final nativeBridge = NativeAmplifyBridge();
      await nativeBridge.configure(
        Amplify.version,
        jsonEncode(config.toJson()),
      );
    } on PlatformException catch (e) {
      if (e.code == 'AmplifyException') {
        throw AmplifyException.fromMap(
          Map<String, String>.from(e.details as Map),
        );
    ...

so this line Map<String, String>.from(e.details as Map) throws error (type 'Null' is not a subtype of type 'Map<dynamic, dynamic>' in type cast) because e.details can be null.

in my case PlatformException contains this information

PlatformException(
  AmplifyException, 
  AmplifyException{message=User-Agent was already configured successfully.,
  cause=null,
  recoverySuggestion=User-Agent is configured internally during Amplify configuration. This method should not be called externally.},
  null,
  null
)

(as you can see e.details field is null there)

I would suggest to ignore this "User-Agent was already configured successfully" error, because for example in my case I'm initializing Amplify from the main UI thread, but there is also a possibility that some separate isolate is launched and it tries to initialize Amplify as well (have to deal with background services). Since there is no way to detect from one isolate that Amplify was already configured in another isolate - I end up having this issue.

Categories

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

Steps to Reproduce

1. Register Amplify with DataStore plugin in main isolate
2. Register Amplify with DataStore plugin in different isolate

Screenshots

No response

Platforms

• [ ] iOS
• [X] Android
• [ ] Web
• [ ] macOS
• [ ] Windows
• [ ] Linux

Flutter Version

3.24.0-0.2.pre

Amplify Flutter Version

3.2.0

Deployment Method

Amplify CLI

Schema

No response