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> By using the platform push channels, JMAP avoids having to hold its own connection open.

Can anyone explain what they mean by "platform push channels"? I don't understand how you can have realtime updates without leaving a connection open or periodically polling. Do they mean that they use the same mode of transport as Push Notifications?

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Android, iOS, (Windows Phone, Blackberry, etc) have services where a server application can push a small data packet to a specific device. That device wakes an application in response which can then do things.

We use this right now in our mobile apps. The apps respond by calling back to FastMail to check for updates.

More info:

http://blog.fastmail.com/2014/12/02/dec-3-push-it-real-good/

https://developer.android.com/google/gcm/index.html

https://developer.apple.com/library/ios/documentation/Networ...

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