How could I return a Bool from this sign in with apple function that uses the authorizationController? I have been looking at withCheckedThrowingContinuation but with no luck. I have also seen some examples of using completion handlers but I would like to use async.
func signInWithApple(withState state: SignInState) async -> Bool {
let request = signInWithAppleRequest(withState: state)
let authorizationController = ASAuthorizationController(authorizationRequests: [request])
authorizationController.delegate = self
authorizationController.performRequests()
}
func authorizationController(controller: ASAuthorizationController, didCompleteWithAuthorization authorization: ASAuthorization) {
//...
let credential = OAuthProvider.credential(withProviderID: "apple.com", idToken: idTokenString, rawNonce: nonce)
switch state {
case .signIn:
Task {
authenticationState = .authenticating
do {
let result = try await Auth.auth().signIn(with: credential)
if result.additionalUserInfo?.isNewUser == true {
self.isNewUser = true
}
return true
} catch {
self.authenticationState = .unauthenticated
print(error.localizedDescription)
return false
}
}
case .reauth:
Task {
if let user = Auth.auth().currentUser {
do {
try await user.reauthenticate(with: credential)
return true
} catch {
print(error.localizedDescription)
return false
}
}
}
}
}
}
I don't have all your types, so here is a simple example of a continuation which at least compiles.
The class must inherit from NSObject
and adopt ASAuthorizationControllerDelegate
.
The continuation is set in the same scope where the request is executed.
The most important rule is: The continuation must be resumed exactly once
import AuthenticationServices
class Authorization: NSObject, ASAuthorizationControllerDelegate {
private var continuation : CheckedContinuation<ASAuthorization,Error>?
func signInWithApple() async throws -> ASAuthorization {
return try await withCheckedThrowingContinuation { continuation in
self.continuation = continuation
let appleIDProvider = ASAuthorizationAppleIDProvider()
let request = appleIDProvider.createRequest()
request.requestedScopes = [.fullName, .email]
let authorizationController = ASAuthorizationController(authorizationRequests: [request])
authorizationController.delegate = self
authorizationController.performRequests()
}
}
func authorizationController(controller: ASAuthorizationController, didCompleteWithAuthorization authorization: ASAuthorization) {
continuation?.resume(returning: authorization)
}
func authorizationController(controller: ASAuthorizationController, didCompleteWithError error: Error) {
continuation?.resume(throwing: error)
}
}