Firebase FCM content_available通过Firebase云计算功能引发错误

Question

我一直试图通过云功能发送推送通知.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,这会抛出一个错误,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,它工作正常,所以我知道代码工作.

我还尝试使用CURL/POST请求手动发送此内容,其中包含content_available:true,它也可以.

谢谢!

Answer 1

contentAvailable在sendToDevice(regToken,payload,options)的options参数中传递.示例代码在本文档中.MessagingOptions的文档就在这里.