When I use the apple to log in, the selection box will pop up. I choose to use the password to continue and the prompt is not complete

Question

iOS13 (beta) Apple Login error

@available(iOS 13.0, *)
    func authorizationController(controller: ASAuthorizationController, didCompleteWithError error: Error)         


        

Answer 1

In my case, launching ASAuthorizationController including a request for ASAuthorizationPasswordProvider was causing the error.

Failed to complete operation. (com.apple.AuthenticationServices.AuthorizationError error 1000.)

---

From the ASAuthorizationError.Code documentation; 1000 is for unknown

ASAuthorizationError.Code.unknown

The authorization attempt failed for an unknown reason.

Declaration

case unknown = 1000

_{Ref: https://developer.apple.com/documentation/authenticationservices/asauthorizationerror/code/unknown}

Now that's not particularly helpful but did give me a clue to check my ASAuthorizationController setup which I was trying to launch with 2 requests from ASAuthorizationAppleIDProvider & ASAuthorizationPasswordProvider, like so:

func loginWithAppleButtonPressed() {
    let appleSignInRequest = ASAuthorizationAppleIDProvider().createRequest()
    appleSignInRequest.requestedScopes = [.fullName, .email]

    let anySignInRequest = ASAuthorizationPasswordProvider().createRequest()

    let controller = ASAuthorizationController(authorizationRequests: [appleSignInRequest, 
                                                                       anySignInRequest])
    controller.delegate = self
    controller.presentationContextProvider = self

    controller.performRequests()
}

I tried this on a simulator that had an Apple ID with 2FA enabled and also on a device with another Apple ID without 2FA, and both times it would just go to authorizationController(controller:didCompleteWithError error:) and that's it.

---

Solution:

So to keep it simple, I launched ASAuthorizationController with only ASAuthorizationAppleIDProvider like so:

func loginWithAppleButtonPressed() {
    let appleSignInRequest = ASAuthorizationAppleIDProvider().createRequest()
    appleSignInRequest.requestedScopes = [.fullName, .email]

    let controller = ASAuthorizationController(authorizationRequests: [appleSignInRequest])
    controller.delegate = self
    controller.presentationContextProvider = self

    controller.performRequests()
}

And voilà! This time things worked as expected:

1. When using an Apple ID with 2FA
   • popped up with the login request
2. When using an Apple ID without 2FA
   • popped up an error telling me to enable 2FA
   • called authorizationController(controller:didCompleteWithError error:) with error 1000

---

So seems that in my case ASAuthorizationPasswordProvider was the culprit but since ASAuthorizationError.Code.unknown is a generic error case, this solution may not work for you.

Also, In my case I need only ASAuthorizationAppleIDProvider for Apple ID sign in so dropped the support for ASAuthorizationPasswordProvider.