FCM令牌何时过期？

Question

FCM令牌何时过期？

androidfirebasefirebase-cloud-messaging

72

FCM令牌何时过期？是在6个月后吗？

- Sachin Gururaj Acharya

4个回答

4

使用Firebase admin，您可以做到这一点：

async function isValidDeviceToken (deviceToken) {
  const {
    results: [notifResult]
  } = await firebaseAdmin.messaging().sendToDevice(
    deviceToken,
    {
      notification: {
        title: 'Device Registration',
        message: 'Your device has been registered.'
      }
    },
    {
      dryRun: true
    }
  );

  // returns true if valid, false if not.
  return !notifResult.error;
}

它的作用是检查提供的deviceToken是否有效。在幕后，Firebase管理员会检查deviceToken是否已注册。如果未注册，则会返回以下错误：

{
  error: FirebaseMessagingError: The provided registration token is not registered. A previously valid registration token can be unregistered for a variety of reasons. See the error documentation for more details. Remove this registration token and stop using it to send messages.
      at FirebaseMessagingError.FirebaseError [as constructor] (/Users/aprilmintacpineda/projects/my-app/node_modules/firebase-admin/lib/utils/error.js:44:28)
      at FirebaseMessagingError.PrefixedFirebaseError [as constructor] (/Users/aprilmintacpineda/projects/my-app/node_modules/firebase-admin/lib/utils/error.js:90:28)
      at new FirebaseMessagingError (/Users/aprilmintacpineda/projects/my-app/node_modules/firebase-admin/lib/utils/error.js:256:16)
      at Function.FirebaseMessagingError.fromServerError (/Users/aprilmintacpineda/projects/my-app/node_modules/firebase-admin/lib/utils/error.js:289:16)
      at /Users/aprilmintacpineda/projects/my-app/node_modules/firebase-admin/lib/messaging/messaging.js:105:63
      at Array.forEach (<anonymous>)
      at mapRawResponseToDevicesResponse (/Users/aprilmintacpineda/projects/my-app/node_modules/firebase-admin/lib/messaging/messaging.js:101:26)
      at /Users/aprilmintacpineda/projects/my-app/node_modules/firebase-admin/lib/messaging/messaging.js:370:24
      at processTicksAndRejections (node:internal/process/task_queues:94:5)
      at async isValidDeviceToken (/Users/aprilmintacpineda/projects/my-app/test.js:13:7) {
    errorInfo: {
      code: 'messaging/registration-token-not-registered',
      message: 'The provided registration token is not registered. A previously valid registration token can be unregistered for a variety of reasons. See the error documentation for more details. Remove this registration token and stop using it to send messages.'
    },
    codePrefix: 'messaging'
  }
}

- aprilmintacpineda

2

如文档这里所述，令牌不会过期，只会在某些事件发生时更改。每当生成新令牌时，都会调用onTokenRefereshId方法。要实现此功能，请创建一个扩展FirebaseInstanceIdService的类，并重写onRefreshToken方法，如下所示：

public class MyFirebaseInstanceIDService extends FirebaseInstanceIdService {
    @Override
    public void onTokenRefresh() {
        // Get updated InstanceID token.
        String refreshedToken = FirebaseInstanceId.getInstance().getToken();
        Log.d(TAG, "Refreshed token: " + refreshedToken);

        // If you want to send messages to this application instance or
        // manage this apps subscriptions on the server side, send the
        // Instance ID token to your app server.
        sendRegistrationToServer(refreshedToken);
    }
}

不要忘记在清单文件中注册此服务。

<service
    android:name=".MyFirebaseInstanceIDService">
    <intent-filter>
        <action android:name="com.google.firebase.INSTANCE_ID_EVENT"/>
    </intent-filter>
</service>

- shashank chandak

2

此意图动作现在被称为 com.google.firebase.MESSAGING_EVENT，请参见此处 - https://dev59.com/aqzka4cB1Zd3GeqP_Jrb - Vadim Kotov

0

如果应用程序超过1到2个月没有使用，它将变为“STALE”状态，因此订阅和刷新令牌的功能将停止。这不是一个固定的时间，但根据Firebase文档，建议检查来自FCM后端的无效令牌响应或最大注册时间为2个月之前。参考：https://firebase.google.com/docs/cloud-messaging/manage-tokens

- KRist

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可以查看英文原文，
原文链接

- user2967888 · Accepted Answer

不过它并不会过期。如果出现以下情况之一，它会自动更新：

根据https://firebase.google.com/docs/cloud-messaging/android/client：

- 应用删除实例ID
- 应用在新设备上恢复
- 用户卸载/重新安装应用
- 用户清除应用数据。

监视令牌生成

每当生成新令牌时，onTokenRefresh回调都会触发，因此在其上下文中调用getToken可以确保您访问的是当前可用的注册令牌。请确保已将服务添加到您的清单中，然后在onTokenRefresh的上下文中调用getToken，并按如下所示记录该值：

@Override
public void onTokenRefresh() {
    // Get updated InstanceID token.
    String refreshedToken = FirebaseInstanceId.getInstance().getToken();
    Log.d(TAG, "Refreshed token: " + refreshedToken);

    // If you want to send messages to this application instance or
    // manage this apps subscriptions on the server side, send the
    // Instance ID token to your app server.
    sendRegistrationToServer(refreshedToken);
}

编辑

onTokenRefresh()现在已经被弃用。应该使用onNewToken()代替。