I'm currently implementing push notifications from our backend server to our app (macOS Catalina & iOS - same code base), using Apple Push Notifications & the token based way of authentication (generating JWT from keyId, teamId, ... & signing it with the private key generated in the Apple developer console) to send pushes to APN service.
The problem I am facing is that I can successfully send "alert" notifications (status 200, with header apns-push-type: alert
) and receive them on my iOS and MacOS device (the push notifications appear successfully in production and sandbox mode) but for some reason, "silent" pushes (with header apns-push-type: background
) are only received on my iOS device (iPhone), but not on my Mac ( didReceiveRemoteNotification(...)
in AppDelegate
is never called).
What I have done so far:
apns-push-type: background
apns-topic: my.bundle.id
(this is different for sandbox/production)apns-priority: 5
(only when delivering background pushes)authorization: mytoken
(this must be the case, otherwise APN service would not respond with status 200)The APNs requests I am performing to send the push are:
The payload (JSON) I'm sending to APN service in the request body looks as follows:
{
"aps": {
"content-available": 1 # defines push as "silent"
},
"data": { #some key-value pairs here }
}
In any case (both production & sandbox, both with the device token of iOS and macOS), my request to APN returns with a status code 200. My MacBook is running Catalina 10.15.3. What am I possibly doing wrong here or is that something that is simply not supported for Catalyst apps?
Wow doozy question. I'm reasonably familiar with APNs headaches but something popped out at me from the latest docs :
Additionally, the notification's POST request should contain the apns-push-type header field with a value of background, and the apns-priority field with a value of 5. The APNs server requires the apns-push-type field when sending push notifications to Apple Watch, and recommends it for all platforms. For more information, see Create and Send a POST Request to APNs.
Does the priority 5 thing make a difference?
Also my usually attempt to fix these problems is to test in an archive as opposed to an Xcode build. AFAIK the prod push server can only send to App Store, ad-hoc, enterprise, or testflight builds, so if you're just building from Xcode I don't think you'd get any push notifications with production apns.
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