push notification - iOS APNS "best-effort" fallback -

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I think my head can not be around this. The APNN described in the documentation is the best effort delivery, i.e. delivery is not guaranteed. However, if I am to use the push-information model in my client / server application, then I have to use them somehow.

The normal model looks as follows: There is new data on the server - & gt; The server then sends a push notification which notifies the customer that the new data is available - & gt; Customer downloads the new data

Then the question is, if I can not believe 100% on the notification to distribute, what type of fallback mechanism can I use so that I can ensure that the customer Get new data available on server? What is the way to ensure that the client has the most up-date data using APNS?

What is the way to ensure that the most up-to-date data in the client using APNS is?

There is no way to do this Just your customer will have to ask your server when the app is brought to the foreground to see if the new The data is, regardless of whether you have lost or received any push notifications.

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