FCM silent push notification structure for iOS?

Question

I need example of notification payload for silent notification, I tried this below structure, but it's not working

{ 
    "notification" : {
        "body" : " Survey list updated",
        "content-available:" : true,
        "data" : {
            "isNewUpdateAvailable" : "easysurvey.survey_list_updated"
            }
        },
        "to" : "f6PwToRUxk0:APA91bG7bSWoKsjHXVmXaiDEnFXA2x2jEOMSO6eGCqPv1fRd-dctNLDEabRq-0So_obuPGFqOFTSLJl5FFyuOuXKBXh-n89BmzzXenRTxoirY9Y1c6-J9MxpDp0ojHL2xm1law0V6gg3"
}

Using this structure, I am able to receive notifications, but it's not silent & doesn't wake the app. i need solution for firebase notification & on iOS 10, i am following same firebase sample code

Answer 1

i got the answer, write payload structure in this way.

{  
   "data":{  
      "title":"mytitle",
      "body":"mybody",
      "url":"myurl"
   },
   "notification":{  
      "title":"mytitle",
      "body":"mybody",
      "content_available": true
   },
   "to":"DEVICE_FCM_TOKEN"
}

this may help someone. if you wish to test FCM notification using POSTMAN Api client, use "key=YOUR_SERVER_KEY"