Question

我试图在iOS上的Swift中取消用户的电子邮件/密码身份验证。我已阅读the documentation并设法链接和取消链接Facebook身份验证，没有任何问题。但是，成功链接电子邮件/密码凭据后，providerData对象为零。 providerID是＆＃34; Firebase＆＃34;但是当我将其传递给unlink代码时，会抛出以下错误：

Error Domain=FIRAuthErrorDomain Code=17016 "User was not linked to an account with the given provider." UserInfo={NSLocalizedDescription=User was not linked to an account with the given provider., error_name=ERROR_NO_SUCH_PROVIDER}

我使用的取消链接代码是：

let providerId = (FIRAuth.auth()?.currentUser?.providerID)!
print("Trying to unlink:",providerId)     // providerId = "Firebase"
FIRAuth.auth()?.currentUser?.unlinkFromProvider(providerId) { user, error in
    if let error = error {
        print("Unlink error:", error)
    } else {
        // Provider unlinked from account successfully
       print("Unlinked...user.uid:", user!.uid, "Anonymous?:", user!.anonymous)
        }
    }

阅读文档并让它适用于Facebook，我希望在电子邮件身份验证之后，可以使用某些内容填充providerData数组。那么我的链接代码是错误的（它不会抛出错误并且似乎工作正常）？

我的关联代码：

let credential = FIREmailPasswordAuthProvider.credentialWithEmail(email, password: password)

FIRAuth.auth()?.currentUser!.linkWithCredential(credential) { (user, error) in
    if user != nil && error == nil {
        // Success
        self.success?(user: user!)
        dispatch_async(dispatch_get_main_queue(), {
            self.dismissViewControllerAnimated(true, completion: nil)
            if type == "new" {
                print("New user logged in...")
            }
            if type == "existing" {
                print("Existing user logged in...")
            }
        })
    } else {
        print("Login error:",error)
        self.showOKAlertWithTitle("Login Error", message: error!.localizedDescription)
    }
}

关于如何修改我的方法的任何指示都会很棒。

Answer 1

要从与用户关联的登录提供程序中检索配置文件信息，请使用providerData属性。

if let user = FIRAuth.auth()?.currentUser {
  for profile in user.providerData {
    // Id of the provider (ex: facebook.com)
    let providerID = profile.providerID
  }
} else {
  // No user is signed in.
}

调用FIRAuth.auth（）？currentUser？.providerID将导致＆＃34; firebase＆＃34;。

Firebase在iOS上取消用户的电子邮件/密码身份验证

1 个答案: