Firebase FCM - 为什么我得到：有效载荷错误，无效的'android'（或'apns'）属性

Posted 2021-05-03

我正在使用云功能（node.js）向设备发送通知。我的有效负载设置如下：

const payload = {
    notification: {
        title: payloadSender,
        body: payloadMessage,
    },
    data: {
        chatId: chatId,
    },
    android: {
        priority: 'normal',
        collapse_key: chatId,
        //todo how to set badge?
        notification: {
          sound: 'messageSent.wav',  
        },
    },
    apns: {
        headers: {
            'apns-priority': '5',
            'apns-collapse-id': chatId,
        },
        payload: {
            aps: {
                badge: newUnreads,
                sound: 'messageSent.wav',
                'content-available': 1,
            }
        }

    }
};

根据Firebase文档，您可以使用“android”和“apns”字段来设置特定的行为。以下是FCM发送的消息的JSON表示found here：

{
 "name": string,
 "data": {
   string: string,
   ...
},
"notification": {
  object(Notification)
},
"android": {
  object(AndroidConfig)
},
"webpush": {
  object(WebpushConfig)
},
"apns": {
  object(ApnsConfig)
},

// Union field target can be only one of the following:
"token": string,
"topic": string,
"condition": string
// End of list of possible types for union field target.
}

为什么我得到错误Messaging payload contains an invalid "android" property. Valid properties are "data" and "notification".和Messaging payload contains an invalid "apns" property. Valid properties are "data" and "notification".？

答案

我无法根据您的帖子确定您使用的是哪个版本，但最好注意平台覆盖功能仅适用于v1而不适用于Legacy。

另外，我不确定你是否刚从示例有效负载中删除了一些项目，但是有很多不必要的逗号（,）在那里打破了JSON。尝试使用在线JSON格式化程序来仔细检查您的有效负载。我试过你的一个，并在删除所有错误后结束了这个：

{
    "notification": {
        "title": "payloadSender",
        "body": "payloadMessage"
    },
    "data": {
        "chatId": "chatId"
    },
    "android": {
        "priority": "normal",
        "collapse_key": "chatId",
        //todo how to set badge? IIRC, Badges can be enabled via method inside the Android Notification builder
        "notification": {
          "sound": "messageSent.wav"
        }
    },
    "apns": {
        "headers": {
            "apns-priority": "5",
            "apns-collapse-id": "chatId"
        },
        "payload": {
            "aps": {
                "badge": "newUnreads",
                "sound": "messageSent.wav",
                "content-available": 1 // Double check this one if you are to actually use content-available or content_available for FCM
            }
        }

    }
}

只需根据需要再次切换变量。