I have Integrated Apple Sign with Firebase authentication in Flutter application. so it is working fine with IOS but In Android I am facing issue "Invalid_Client" please help me Out this.
Here is below screen that I am facing issue
Apple Sign in gettting error "Invalid_client" in Flutter Android application
This forum cannot help on Android. It is dedicated to Apple's products.
You'd probably better contact Flutter directly.
An invalid client error can be the result of multiple failure points on the client-side implementation. For a quick reference of the potential errors returned from the validation response, please see ErrorResponse.
Additionally, the most common occurrence is a mismatched client identifier between the following scenarios:
- the client id provided in the authorization request (or the audience claim contained within the identity token of the authorization response); and
- the subject contained within the client secret generated for the validation request.
Please see the Generate and Validate Tokens for additional information about the validation servers.
If you believe these query parameters are valid, then I'd suggest you reach out to Flutter's support channels for further guidance to their tooling.