Firebase FCM content_available 通过 Firebase Cloud Functions 引发错误

Question

我一直在尝试通过 Cloud Functions 发送推送通知。这是有关如何从 Firebase 执行此操作的指南: https://github.com/firebase/functions-samples/blob/master/fcm-notifications/functions/index.js

这是我的有效载荷

const payload = {
      "notification": {
        title: 'Title!',
        body: 'Body!',
        sound: 'default'
      },
      "data":{"score":"3x1"},
      "content_available": true,
    };

现在，这引发了一个错误，当我检查日志时，这是错误:

Error: Messaging payload contains an invalid "content_available" property. Valid properties are "data" and "notification".
    at FirebaseMessagingError.Error (native)
    at FirebaseMessagingError.FirebaseError [as constructor] (/user_code/node_modules/firebase-admin/lib/utils/error.js:25:28)
    at new FirebaseMessagingError (/user_code/node_modules/firebase-admin/lib/utils/error.js:130:23)
    at /user_code/node_modules/firebase-admin/lib/messaging/messaging.js:465:23
    at Array.forEach (native)
    at Messaging.validateMessagingPayload (/user_code/node_modules/firebase-admin/lib/messaging/messaging.js:462:21)
    at /user_code/node_modules/firebase-admin/lib/messaging/messaging.js:204:37
    at process._tickDomainCallback (internal/process/next_tick.js:129:7)

如果我删除 content_available: true，它可以正常工作，所以我知道代码可以正常工作。

我还尝试使用 CURL/POST 请求 WITH content_available: true 手动发送它，它也有效。

谢谢!

Answer 1

contentAvailable 在 sendToDevice(regToken, payload, options) 的 options 参数中传递.示例代码位于 this documentation . MessagingOptions is here 的文档.