Sign In with Apple access with Swift

I am trying to implement a 'Sign In with Apple'. I can sign in easily with accounts that I've made with the password credentials, but I am unable to get access to the users email and name in the ASAuthorizationAppleIDCredential, how can I get access to these fields and an auto generated password so that users can signup without the hassle?

@objc private func appleSignInPressed() {
        let provider = ASAuthorizationAppleIDProvider()
        let request = provider.createRequest()
        request.requestedScopes = [.email, .fullName]
                
        let requests = [request, ASAuthorizationPasswordProvider().createRequest()]
        let controller = ASAuthorizationController(authorizationRequests: requests)
        controller.delegate = self
        controller.presentationContextProvider = self
        controller.performRequests()
    }



extension WelcomeViewController: ASAuthorizationControllerDelegate {
    func authorizationController(controller: ASAuthorizationController, didCompleteWithAuthorization authorization: ASAuthorization) {
        switch authorization.credential {
        case let passwordCredential as ASPasswordCredential:
            let username = passwordCredential.user
            let password = passwordCredential.password
            viewModel.didTouchLoginButton(with: username, and: password, feeds: [], referralLink: nil)
        case let credentials as ASAuthorizationAppleIDCredential:
            let fullName = credentials.fullName?.givenName
            let email = credentials.email
            SignupManager.shared.email = email
            SignupManager.shared.username = fullName
            print("HERE HERE: \(credentials.fullName)")
            print("HERE HERE: \(credentials.email)")
            startSignUpFlow()
        default:
            startSignUpFlow()
        }
    }
}

prints:

HERE HERE: Optional()
HERE HERE: nil

After clicking Sign In with Apple -> Apple ID