MyTallest MyTallest - 1 month ago 34
iOS Question

Firebase messaging not working for "data" messages in iOS

I have an app running on iOS 9.3.5. I need to be able to send a push notification to my app when it's in the foreground or background. I don't actually need to include any data, I just need to ping the app so it will "phone home". So I don't need/want the user to see any notifications.

Since the company is already using Firebase for their Android app, I've set that up in the iOS app. If I send a message to

https://fcm.googleapis.com/fcm/send
with the
notification
key in the payload, it's received on the iPhone. When I try it with the
data
key instead, I get nothing. In both cases I get a
success
response from the POST. I've implemented the follow callbacks:

application:didReceiveRemoteNotification:
userNotificationCenter:willPresentNotification:withCompletionHandler:
applicationReceivedRemoteMessage:(FIRMessagingRemoteMessage *)remoteMessage


None of those are called when sending a message with the
data
key.

Edit:
This is the payload I'm using.


{ "data": {
"message": "phonehome",
},
"to" : "xxxxx"
}


After doing some more testing it looks like I get that message when the app is in the foreground but not the background. When I switch to the foreground then
application:didReceiveRemoteNotification:
gets called.

Edit 2: Added
content_available
and that did the trick. Thanks!


{ "to" : "xxxx", "content_available" : true }

AL. AL.
Answer

It's a little bit hard to suggest without a sample payload, However, do try to use the priority parameter as high or content_available to true.