IAP - large file download

I am planning to create a graphic intensive game.
My concern is to trim down my free app, the intensive content only allow download after gamer pay for it.

How can i secure my paid content, where can i host them? Under personal hosting? Or will host in apple?
If there is a disconnect when they downloading the premium content, how to resume the download via corona?

Any sample app code? Or how can we test this out? [import]uid: 10373 topic_id: 17948 reply_id: 317948[/import]