Filtering Apple Push Notification

Question

I got APNS working perfectly, after many issues with SSL.

Now, I was wondering how I can filter the notifications sent to the devices. I have to do it server-side, or client-side (app) ?

For example, a Soccer app that sends the latest game scores to the registered devices. By default, my device shows all notifications sent by APNS (all scores). What if I want to receive only Real Madrid scores, because I'm a Real Madrid fan?

I keep APNS sending all scores, and I implement the filter in client, or I have to filter in the server side, sending specific payloads to specific devices?

Answer 1

Definitely the server side. Apple specifically state that sending large numbers of notifications to devices that don't want to receive them (either not relevant, or push not enabled etc) - is a bad practice.

Not to mention - if your volume picks up in terms of userbase, you don't want to flatline your link.