Apple Wallet: Device not registering to receive push notification for a pass

Question

Recently, I've managed to create a pass with WebServiceUrl and AuthenticationToken in order to subscribe for future changes. Since I'm in active development I used http://localhost:5000/passes as a WebServiceUrl.

Created pass is correctly loaded in iOS Simulator, but when I try to add it to the wallet, device won't make a call in order to register for notifications using my API (POST request to {webServiceURL}/{version}/devices/ {deviceLibraryIdentifier}/registrations/{passTypeIdentifier}/{serialNumber}) as it should, according to the docs:

• https://developer.apple.com/library/archive/documentation/UserExperience/Conceptual/PassKit_PG/Updating.html and
• https://developer.apple.com/library/archive/documentation/PassKit/Reference/PassKit_WebService/WebService.html.

I've checked iOS Simulator Console that shows no signs of such a request.

Some interesting observations worth mentioning:

• my first successfully created pass made this device registration call, but since that moment, it was never done again
• device unregistering call (among other calls) is made every time pass is deleted from the wallet. I can see it in iOS Simulator Console and my API logs so apparently WebServiceUrl is valid and usable.

Answer 1

Provided Apple PassKit docs states:

NOTE: Test updates on a device; the iOS Simulator app doesn’t register for push notifications.

So basically that's it but what really bakes my noodle is that I'm pretty sure, that my first run of a test pass using iOS simulator made that call. Anyway, I ended up testing it on a physical device. That's it.