iTunes Lookup API, get iPhone 5 app screenshots

Question

I use iTunes API lookup to get app data by App ID this way:
http://itunes.apple.com/lookup?id=543891460&lang=ru

Even if app is designed for

Answer 1

It is possible to access all screenshots using the inofficial iTunes Connect API:

https://itunesconnect.apple.com//WebObjects/iTunesConnect.woa/ra/apps/version/[app_id]

It contains all existing screenshots in all resolution in the original format.

Unfortunately I haven't found a way to map the language with the one used by the iTunes Transporter.

There is a pull request, adding this feature to deliver: https://github.com/KrauseFx/deliver/pull/113/files

Update: a mapping of language codes to languages can be found here: https://github.com/KrauseFx/deliver/blob/master/lib/assets/DeliverLanguageMapping.json