示例PostMan Json数据：

{ "data": {
    "any key": "any value","any key 2": "any value 2"
  },"to" : "token received to mobile from FCM"
}

“数据”内的有效负载可以根据需要改变.

移动端：

应用程序(_：didReceiveRemoteNotification :)覆盖方法将获得fire.So它是开发人员从iOS中的userInfo属性中提取数据并使用它.