问题描述
firebase.auth().getToken() 和通过 Android 设置返回的 FCM 注册令牌有区别吗:FirebaseInstanceId.getInstance().getToken()?我目前正在使用 https://www.npmjs.com/package/firebase 它使用第一个上面的方法设置身份验证以及生成令牌.尝试发送通知时使用该令牌返回:error:InvalidRegistration...
Is there a difference between the firebase.auth().getToken() and the FCM registration token returned via Android setup: FirebaseInstanceId.getInstance().getToken()? I am currently using https://www.npmjs.com/package/firebase which uses the first method above to setup auth as well as generate a token. Using that token when trying to send a notification returns: error:InvalidRegistration...
推荐答案
Auth 和 FCM 令牌不同且不相关.
The Auth and FCM tokens are different and unrelated.
Firebase 身份验证 ID 令牌用于识别用户.Firebase 身份验证访问令牌(根据 ID 令牌自动生成)授予用户对 Firebase 后端的临时访问权限.
The Firebase Authentication ID token identifies the user. A Firebase Authentication access token (auto-generated based on the ID token) grants the user temporary access to the Firebase back-end.
Firebase FirebaseInstanceId 令牌(由 Firebase Cloud Messaging 使用)标识应用在特定设备上的安装.
Firebase FirebaseInstanceId token (that is used by Firebase Cloud Messaging) identifies the installation of the app on a specific device.
例如:如果您在两台不同的设备上登录一个应用程序，您将获得相同的身份验证 UID(尽管访问令牌会有所不同，每次您在一台设备上登录时).
For example: if you sign in to an app on two different devices, you will get the same authentication UID (although the access token will be different, each time you sign in on a device).
如果您在两台设备上使用相同的应用程序，则 FCM 令牌会有所不同.但是，如果应用程序具有登录功能，则无论用户是谁(甚至是否)登录，FCM 令牌都是相同的.此外:如果不同的用户登录同一个已安装的应用，FCM 令牌将保持不变.
If you have the same app on two devices, the FCM token will be different. But if the app has sign-in functionality, the FCM token will be the same no matter who (or even if) a user is signed in or not. Furthermore: if a different user signs in to the same installed app, the FCM token will remain unchanged.
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