"Push notifications" backend in Lift?

[Michał Rus]

Hi again,

what will be the most Lifty way of implementing backend for so called "push notifications" for iOS/Android? Generally this is long polling, as in Comet. The mobile device keeps a connection to the server in a background task/service.

Also: should I implement some sort of a "ping" message to check if the link is still up at a time when there's no data being sent?

Great thanks for all suggestions,

m.

[Diego Medina]

Hi,

Yes, you would use long pool hitting a rest api on the Lift side, and there you can use the async response, so that the http thread can serve other requests while there is no data coming in. You would have to also have logic to reconnect after a timeout, pretty much what the js code fro the client side does for comet requests.

Thanks

  Diego 

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Diego Medina
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[Michał Rus]

Diego,

thank you, just as I though. :)

Greetings,

m.

[Franz Bettag]

Hey Michal,

if you need a scala-only APN client, just ours from wasted.io (based on netty4)
https://github.com/wasted/scala-util/blob/master/src/main/scala/io/wasted/util/apn/APN.scala

GCM to follow quite soon. :)

best regards

Franz

Lift Committer and Director of R&D

[Michał Rus]

Hi, Franz,

thanks a lot! I've bookmarked the code. (Still, whether APN/GCM are to be used at all is not yet decided).

Thanks,

m.