I have an iTunes appID of 9 digits.
When I query itunes with a US store http://itunes.apple.com/us/app/id508611913 it does not work.
When I try it with a Great Britain (UK) store front http://itunes.apple.com/gb/app/id508611913 then it works.
If i try it without any country designation, it defaults to US so it does not find it.
I want to query ALL the countries at once. Does Apple provide an API that can query across all the countries?
Thanks
The short answer is "no."
Apple does provide an API (http://www.apple.com/itunes/affiliates/resources/documentation/itunes-store-web-service-search-api.html) but each query is storefront specific so, as mentioned in the first answer from Stuart, you'll need to cycle through each country.
We also have an API for our clients that may be of interest for you. It's what powers our "Availability Tool" (http://www.georiot.com/availability).
来源:https://stackoverflow.com/questions/10105638/how-can-query-all-itunes-store-fronts-of-all-countries