IOS Add ability to close auth0 webview programatically

[bysano]

Checklist

• I have looked into the Readme, Examples, and FAQ and have not found a suitable solution or answer.
• I have looked into the API documentation and have not found a suitable solution or answer.
• I have searched the issues and have not found a suitable solution or answer.
• I have searched the Auth0 Community forums and have not found a suitable solution or answer.
• I agree to the terms within the Auth0 Code of Conduct.

Describe the problem you'd like to have solved

there is such corner case when user opens auth0 view in mobile app , then he is able to click forgot password button , which sends link to his email . when user clicks on deeplink , some logic is triggered in the the app , but it happens with opened auth0 view above native screens

Describe the ideal solution

I would like to have ability to close this auth0 view from flutter code

Alternatives and current workarounds

No response

Additional context

No response

[AlejoCumpa]

I've found the same exact scenario.

[Vishal-0057]

I have solved this by creating a message plugin between native and flutter code.

import 'package:pigeon/pigeon.dart';

@ConfigurePigeon(PigeonOptions(
    dartOut: 'lib/core/auth0/auth0_web_view_target_api.dart',
    swiftOut: 'ios/Runner/Source/Auth0WebView/Auth0WebViewMessage.swift'))
@HostApi()
abstract class Auth0WebViewAPI {
  @async
  bool dismissAuth0WebView();
}

Implement the same Auth0WebViewAPI in the Native iOS code as below.

class Auth0WebViewAPIHandler: NSObject, Auth0WebViewAPI {
    func dismissAuth0WebView(completion: @escaping (Result<Bool, Error>) -> Void) {
        topViewController?.dismiss(animated: true, completion: {
            completion(Result.success(true));
        })
    }
}

private extension Auth0WebViewAPIHandler {
    var topViewController: UIViewController? {
        guard let appDelegate = UIApplication.shared.delegate as? AppDelegate else {
            return nil
        }
        return appDelegate.window.rootViewController as? FlutterViewController
    }
}

[arthurgiani]

Same problem here

[KeeganDC]

@Vishal-0057 thanks for sharing your code, i tried it out and it was able to dismiss the iOS webview nicely

however if the app attempts to call auth0 functions again, it will still throw the same error of
UNKNOWN: Failed to start this transaction, as there is an active transaction at the moment

We need to somehow trigger this logic here:
https://github.com/auth0/Auth0.swift/blob/master/FAQ.md#5-how-to-resolve-the-failed-to-start-this-transaction-as-there-is-an-active-transaction-at-the-moment-error