Swift-使用Facebook验证Firebase时发生（无效的_凭据）错误

Question

Facebook登录没问题，但Firebase无法获取Facebook帐户详细信息。

1. 我已经检查了firebase网站中无效的_凭据意味着什么

一旦我构建，它就会显示：

登录了

登录失败。Error Domain=FirebaseAuthentication Code=-11“（错误代码：INVALID_凭据）提供的验证凭据无效。”UserInfo={details={“providerErrorInfo”：{}}，NSLocalizedDescription=（错误代码：无效的\u凭据）提供了无效的身份验证凭据。}

@IBAction func loginWithFB(sender: AnyObject) {
    let facebookLogin = FBSDKLoginManager()
    //self.performSegueWithIdentifier("CurrentlyLoggedIn", sender: sender)
    facebookLogin.logInWithReadPermissions(["public_profile", "email", "user_friends"], fromViewController: self, handler: {(facebookResult, facebookError) -> Void in
        if facebookError != nil {
            print("Facebook login failed. Error \(facebookError)")
        } else if facebookResult.isCancelled {
            print("Facebook login was cancelled.")
        }else{
            print("Loged in")
            let accessToken = FBSDKAccessToken.currentAccessToken().tokenString
            
            DataService.dataService.BASE_REF.authWithOAuthProvider("facebook", token: accessToken, withCompletionBlock: {error, authData in
                if error != nil{
                    print("Login failed. \(error)")
                }else{
                    print("Logged in! \(authData)")
                }})
        }
    })

Answer 1

您可以在项目中检查这几行代码。我认为您的完成处理程序触发了这种情况。下面的这个适用于我的项目。

  let facebookLogin = FBSDKLoginManager()

  facebookLogin.logInWithReadPermissions(["email"], fromViewController: self) { (facebookResult: FBSDKLoginManagerLoginResult!, facebookError: NSError!) in

        if facebookError == nil {
            if FBSDKAccessToken.currentAccessToken() == nil {
                print("FOUND NIL!")
            }
            else if(facebookResult.isCancelled) {
                print("Cancelled")
            }
            else {
                let accessToken = FBSDKAccessToken.currentAccessToken().tokenString
                print(accessToken)

                DataService.ds.REF_BASE.authWithOAuthProvider("facebook", token: accessToken, withCompletionBlock: {
                    error, authData in

                    if error != nil {
                        print("yes \(error)")
                    }
                    else {

                        print("Logged in! \(authData)")

                    }
                })

            }
        }

   }