Parse Back4App iOS Swift “PFUser.logInWithAuthType(inBackground: apple” method returns task as nil

Question

I'm trying to implement Apple Login in my iOS Swift App. I already have manual signup and Facebook login.

I have implemented apple login, and it works fine as it returns the TOKEN and USER each time.

But when I pass it in "PFUser.logInWithAuthType(inBackground: apple" method, this works partially, sometimes it works fine with task returning value and other most of the time Parse returns task as nil , with error "internal server error".

The error message returned by Parse is "internal server error" , which in Parse explains as Error without a message. I don't think there must be problem with code as it works partial times or it should've returned error message if something is wrong from my side.

Still I'm not sure am I doing this right, please let me know. Thanks in advance,

@available(iOS 13.0, *)
    func authorizationController(controller: ASAuthorizationController, didCompleteWithAuthorization authorization: ASAuthorization) {
        switch authorization.credential {

            case let credentials as ASAuthorizationAppleIDCredential:

                let token = credentials.identityToken!
                let tokenString = String(data: token, encoding: .utf8)!
                let user = credentials.user

                print("TOKEN: \(tokenString)")
                print("USER: \(user)")

                if let _ = credentials.email, let _ = credentials.fullName {
                    track("Register New Account")
                    PFUser.logInWithAuthType(inBackground: "apple", authData: ["token":tokenString, "id": user]).continueWith { task -> Any? in
                        if ((task.error) != nil){
                            DispatchQueue.main.async {
                                self.hideHUD()
                                alert("Could not login.\nPlease try again.")
                                track("Error with parse login after SIWA: \(task.error!.localizedDescription)")
                            }
                            return task
                        }
                        self.fillAppleDetails(userObject: task.result!, credentials: credentials)
                        return nil
                    }
                } else {
                    track("SignIn with Existing Account")
                    PFUser.logInWithAuthType(inBackground: "apple", authData: ["token":tokenString, "id": user]).continueWith { task -> Any? in
                        if ((task.error) != nil) {
                            DispatchQueue.main.async {
                                self.hideHUD()
                                alert("Could not login.\nPlease try again.")
                                track("Error with parse login after SIWA: \(task.error!.localizedDescription)")
                            }
                            return task
                        }

                        let userObject = task.result

                        if userObject!.email == nil {
                            self.fillAppleDetails(userObject: task.result!, credentials: credentials)
                        } else {
                            DispatchQueue.main.async {
                                mustRefresh = true
                                self.navigationController?.popToRootViewController(animated: true)
                                self.delegate?.capital()
                            }
                        }

                        return nil
                    }
                }
                break

            default: break
        }
    }

Answer 1

This is an error on Parse Back4App's side. It has been fixed in Parse Version 4.2.0, which is currently in Private Beta. You can mail them to get access.