Request queued messages from APNs

[Spidy123222]

On iOS it currently receives missed messages on boot if device was turned off for multiple hours of time and starting up it takes a bit of time but it receives messages that were missed. This would be very useful for locally ran stuff like inside of a app or executable where it might not always be active and someone could message during that time.

[topiga]

Yeah but no, this feature requires iCloud history ^^

[TaeHagen]

IIRC even a real Mac doesn't catch up on missed messages (i know some messages i've sent have gone missing when the mac was offline for large periods of time). I know APNs will redeliver missed messages, but after a while it throws them away (not sure how long?). I think iCloud sync is used for that on real iDevices to fill in those gaps, which we haven't implemented.

[sumnerevans]

When you connect and there's stuff in the APNs queue, you will receive a message with command=160. It means that you need to ask for APNs to send you the queue. The way to do this is to send back a command=160 message and it will send you everything you missed.

[TaeHagen]

Huh, I never did that and apns still seems to redeliver everything for me anyways. Tho it does it multiple times, maybe i need to send the 160?

[sumnerevans]

It seems to send it randomly, but you can request it with 160.