Firebase 管理 SDK FCM 错误 Exactly one of the topic, token or condition is required

Question

我正在修复发生的错误消息，但它以前也能正常工作。我发送带有多个令牌的 FCM 通知并收到以下错误

0|api      | 2020-2-11 13:26:26   [ExceptionsHandler] Exactly one of topic, token or condition is required
0|api      |  +542752ms
0|api      | Error: Exactly one of topic, token or condition is required
0|api      |     at FirebaseMessagingError.FirebaseError [as constructor] (/var/www/tokee-api-new/node_modules/firebase-admin/lib/utils/error.js:42:28)
0|api      |     at FirebaseMessagingError.PrefixedFirebaseError [as constructor] (/var/www/tokee-api-new/node_modules/firebase-admin/lib/utils/error.js:88:28)
0|api      |     at new FirebaseMessagingError (/var/www/tokee-api-new/node_modules/firebase-admin/lib/utils/error.js:254:16)        0|api      |     at Object.validateMessage (/var/www/tokee-api-new/node_modules/firebase-admin/lib/messaging/messaging-types.js:46:15)
0|api      |     at /var/www/tokee-api-new/node_modules/firebase-admin/lib/messaging/messaging.js:265:31
0|api      |     at Array.map (<anonymous>)
0|api      |     at Messaging.sendAll (/var/www/tokee-api-new/node_modules/firebase-admin/lib/messaging/messaging.js:264:29)
0|api      |     at Messaging.sendMulticast (/var/www/tokee-api-new/node_modules/firebase-admin/lib/messaging/messaging.js:313:21)   0|api      |     at userChunks.forEach.userChunk (/var/www/tokee-api-new/src/modules/common/firebase/firebase.service.ts:154:42)     0|api      |     at Array.forEach (<anonymous>)
0|api      |     at FCMService.<anonymous> (/var/www/tokee-api-new/src/modules/common/firebase/firebase.service.ts:142:16)
0|api      |     at Generator.next (<anonymous>)
0|api      |     at /var/www/tokee-api-new/dist/src/modules/common/firebase/firebase.service.js:13:71
0|api      |     at new Promise (<anonymous>)
0|api      |     at __awaiter (/var/www/tokee-api-new/dist/src/modules/common/firebase/firebase.service.js:9:12)
0|api      |     at FCMService.sendToMany (/var/www/tokee-api-new/dist/src/modules/common/firebase/firebase.service.js:123:16)       0|api      |     at AdminNotificationController.<anonymous> (/var/www/tokee-api-new/src/modules/notification/admin-notification.controller.ts:65:42)
0|api      |     at Generator.next (<anonymous>)
0|api      |     at fulfilled (/var/www/tokee-api-new/dist/src/modules/notification/admin-notification.controller.js:16:58)
0|api      |     at <anonymous>

产生错误的代码：

async sendToMany(users: User[], notification: VSendNotification, title = 'Title', lowPriority = false) {
    // We split emails into arrays of max. 100 size because of the limitation with FCM
    const userChunks = _.chunk(users, 100);
    const promises = [];
    userChunks.forEach(userChunk => {
      const msg: admin.messaging.MulticastMessage = {
        notification: {
          title,
          body: notification.body
        },
        tokens: userChunk.map(user => user.firebaseToken),
        android: {
          priority: lowPriority ? 'normal' : 'high'
        }
      };
      promises.push(this.app.messaging().sendMulticast(msg));
    });
    const result = await Promise.all(promises);
    let accepted = 0;
    let rejected = 0;
    result.forEach(response => {
      accepted += response.successCount;
      rejected += response.failureCount;
    });

    return { accepted, rejected, notification };
  }
}

关于可能出错的想法？

Answer 1

解决方案 - 避免向 Firebase 发送空的 fcm 令牌。

我得到了解决方案。我列出了我所有的 firebase 令牌，但我的数据库中有一些空令牌，这是主要问题。

当我们发送空的 fcm 令牌时，Firebase 给我们以下错误

Exactly one of topic, token or condition is required

Answer 2

喜欢@vijayst 提到的评论。我的问题是我正在使用 send(message) 并在我的消息中包含一个 tokens 数组。但是， send() 不接受。 Send 可以接受一个“主题”，但是要发送到一个令牌数组，你需要使用 sendMulticast(message)

send

sendMulticast

Firebase 管理 SDK FCM 错误 Exactly one of the topic, token or condition is required

Firebase admin SDK FCM error Exactly one of topic, token or condition is required

javascript

node.js

firebase

firebase-cloud-messaging

firebase-admin