在Swift中使用Google Calendar API时收到错误“超出未经身份验证的每日限制”

Question

我目前正在开发一个需要在Swift中使用Google Calendar API的应用程序。不幸的是，项目的进展处于停滞状态，因为我无法确定我需要如何处理才能超越标题中显示的错误。它出现在执行谷歌登录功能后。绕过firebase客户端ID以支持通过Google Developer Console生成的另一个ID也似乎无法解决问题。在代码中的多个场景中，我根据另一个stackoverflow用户的解决方案添加了范围值以及向范围添加“https://www.googleapis.com/auth/userinfo.profile”，但没有一个解决了我的问题。我有一个Google-Info.plist文件，该文件已经正确配置了反向ID和url方案，并且还尝试使用该plist文件中的客户端ID来执行该功能，但它似乎仍然没有工作。下面我已经包含了我的程序的两个主要部分的代码，其中包括对日历api或授权函数的引用。如果您看到任何可能被错误实施的内容，或者我错过了让它发挥作用的一步，请告诉我。我的大部分代码都基于此处提供的快速入门代码：https://developers.google.com/google-apps/calendar/quickstart/ios?ver=swift

只需稍加改动即可额外实施Firebase。注意：登录确实可以正常工作，并且正在成功地将数据传送到firebase，一旦调用Google日历，它就不会允许进一步的进展。根据我在下面提供的内容，还有一个单独的viewcontroller，其中包含google登录按钮，但我不相信我在该类中存在的问题，因此将其排除在外。

APPDELEGATE
import UIKit
import Firebase
import GoogleSignIn
import FirebaseDatabase
import GoogleAPIClientForREST

@UIApplicationMain
class AppDelegate: UIResponder, UIApplicationDelegate, GIDSignInDelegate {

    var scopes = [kGTLRAuthScopeCalendarReadonly, "https://www.googleapis.com/auth/userinfo.profile"]


    var window: UIWindow?

    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {
        FirebaseApp.configure()

        GIDSignIn.sharedInstance().clientID = FirebaseApp.app()?.options.clientID
        GIDSignIn.sharedInstance().delegate = self
        GIDSignIn.sharedInstance().scopes = scopes


        window = UIWindow(frame: UIScreen.main.bounds)
        window?.rootViewController = UINavigationController(rootViewController: ViewController())
        window?.makeKeyAndVisible()

        return true
    }


    func sign(_ signIn: GIDSignIn!, didSignInFor user: GIDGoogleUser!, withError error: Error!) {

        if let err = error {
            print("Failed to log into Google: ", err)

            return
        }

        print("Successfully logged into Google", user)
        //Allows information to be stored in Firebase Database
        let ref = Database.database().reference(fromURL: "https://tesseractscheduler.firebaseio.com/")

        guard let idToken = user.authentication.idToken else { return }
        guard let accessToken = user.authentication.accessToken else { return }
        LoginController().service.authorizer = user.authentication.fetcherAuthorizer()
        let credentials = GoogleAuthProvider.credential(withIDToken: idToken, accessToken: accessToken)

        Auth.auth().signIn(with: credentials, completion: { (user, error) in
            if let err = error {
            print("Failed to create a Firebase User with Google account: ", err)
                return

            }

            //successfully authenticated user
            guard let uid = user?.uid else { return }
            print("Successfully logged into Firebase with Google", uid)



            //Creates database entry with users unique identifier, username, and email.  "null" provided to prevent errors.
            ref.updateChildValues(["UID": uid, "username": user?.displayName ?? "null", "Email": user?.email ?? "null"])

            //Pushes to next screen if login has occurred.
            if GIDSignIn.sharedInstance().hasAuthInKeychain(){
                //GIDSignIn.sharedInstance().clientID = "197204473417-56pqo0dhn8v2nf5v64aj7o64ui414rv7.apps.googleusercontent.com"
                self.window?.rootViewController = UINavigationController(rootViewController: LoginController())
            }
            LoginController().fetchEvents()
        })

    }




    func application(_ application: UIApplication, open url: URL, options:
        [UIApplicationOpenURLOptionsKey : Any] = [:]) -> Bool {




        GIDSignIn.sharedInstance().handle(url,
                                          sourceApplication: options[

                        UIApplicationOpenURLOptionsKey.sourceApplication] as! String!, annotation : options[UIApplicationOpenURLOptionsKey.annotation])

        return true
    }

LOGINCONTROLLER
import UIKit
import GoogleSignIn
import Firebase
import GoogleAPIClientForREST

class LoginController: UIViewController {


    let service = GTLRCalendarService()
    let output = UITextView()
    let appDelegate = (UIApplication.shared.delegate as? AppDelegate)



    override func viewDidLoad() {
        super.viewDidLoad()

        navigationItem.leftBarButtonItem = UIBarButtonItem(title: "Logout", style: .plain, target: self, action: #selector(didTapSignOut))
         view.backgroundColor = UIColor(red: 61/255, green: 91/255, blue: 151/255, alpha: 1)

        output.frame = view.bounds
        output.isEditable = false
        output.contentInset = UIEdgeInsets(top: 20, left: 0, bottom: 20, right: 0)
        output.autoresizingMask = [.flexibleHeight, .flexibleWidth]
        output.isHidden = true
        view.addSubview(output);



        }

    func fetchEvents() {
        let query = GTLRCalendarQuery_EventsList.query(withCalendarId: "primary")
        query.maxResults = 10
        query.timeMin = GTLRDateTime(date: Date())
        query.singleEvents = true
        query.orderBy = kGTLRCalendarOrderByStartTime
        service.executeQuery(
            query,
            delegate: self,
            didFinish: #selector(displayResultWithTicket(ticket:finishedWithObject:error:)))
    }

    @objc func displayResultWithTicket(
        ticket: GTLRServiceTicket,
        finishedWithObject response : GTLRCalendar_Events,
        error : NSError?) {

        if let error = error {
            showAlert(title: "Error", message: error.localizedDescription)
            return
        }

        var outputText = ""
        if let events = response.items, !events.isEmpty {
            for event in events {
                let start = event.start!.dateTime ?? event.start!.date!
                let startString = DateFormatter.localizedString(
                    from: start.date,
                    dateStyle: .short,
                    timeStyle: .short)
                outputText += "(startString) - (event.summary!)
"
            }
        } else {
            outputText = "No upcoming events found."
        }
        output.text = outputText
    }

    private func presentViewController(alert: UIAlertController, animated flag: Bool, completion: (() -> Void)?) -> Void {
        UIApplication.shared.keyWindow?.rootViewController?.present(alert, animated: flag, completion: completion)
    }
    //Shows an error alert with a specified output from the log.
    func showAlert(title : String, message: String) {
        let alert = UIAlertController(
            title: title,
            message: message,
            preferredStyle: UIAlertControllerStyle.alert
        )
        let ok = UIAlertAction(
            title: "OK",
            style: UIAlertActionStyle.default,
            handler: nil
        )
        alert.addAction(ok)
        presentViewController(alert: alert, animated: true, completion: nil)
    }

    //Communicated to navigation button to perform logout function.
    @objc func didTapSignOut(_ sender: AnyObject) {
            GIDSignIn.sharedInstance().signOut()
            print("Successfully logged out of Google.")
            showAlert(title: "Log Off", message: "Logout Successful!")
        appDelegate?.window?.rootViewController = UINavigationController(rootViewController: ViewController())

    }




        // Do any additional setup after loading the view.
    }

如果您需要提供任何其他信息以帮助确定问题，请告知我们。我进行了相当广泛的搜索，无法为我的特定问题找到解决方案。如果这是一个愚蠢的问题，我深表歉意：我对API的合并仍然相当新。