sending request to apple - from iphone custom application - iphone

Question

Let me explain the application.
Before starting my question, I would like to say the following. (for specification of my question)
For example
in Mac os
User Starts iTunes
User Clicks on iTunes Store
User can see the different applications, videos etc.
After he will select specific application/video to purchase it.
ID - Password is required.
( this entire process is before the purchase, means doesn't require any apple id password )
I have to develop an application which fulfill same requirement as iTunes have. But I am not able to even start it.
User starts my application
User can see the all applications developed by my Company. ( Say for example my company has 10 applications developed. )
Items are in table view. or may be other control.
In short I have Items, The thing that I Require is " How to send request to apple / when user select my application to purchase? Or what to do - I have no idea about it. "
user clicks and add items to cart.
OK. Now here my question starts.
How to send
request to apple - server when user
taps on specific item ?
What kind of / How many accounts / certificates are required to do the above task ?

Answer 1

I'm no expert on this but I have a strong feeling that Apple isn't going to allow purchases on its store using a third-party application. What exactly are you trying to do?

Answer 2

http://developer.apple.com/iphone/library/documentation/NetworkingInternet/Conceptual/StoreKitGuide/Introduction/Introduction.html
You can use In-App Purchase to unlock additional features of your application, to enable or download additional data sets, or even sub-products of your main product (the guide above specifically mentions a game with multiple smaller games that can be purchased.
You cannot use In-App Purchase to build your own App Store.

Answer 3

you should read in app purchase guide on apple's site

Answer 4

Two options:
As stated above, use the in-app-purchase mechanism, with the limitations posted by cdespinosa
Simply forward the user to the iTunes link for your applications.
Here comes a little example snippet that is pointing towards a piece of music - same works for applications - use the iTunes link-generator on the Apple site for this purpose:
http://ax.phobos.apple.com.edgesuite.net/WebObjects/MZStoreServices.woa/wa/itmsLinkMaker
#ifdef TARGET_IPHONE_SIMULATOR
NSString *buyString=#"http://itunes.apple.com/WebObjects/MZStore.woa/wa/viewAlbum?i=314186312&id=314186290&s=143443&uo=6";
#else
NSString *buyString=#"itms://phobos.apple.com/WebObjects/MZStore.woa/wa/viewAlbum?i=314186312&id=314186290&s=143443&uo=6";
#endif
NSURL *url = [[NSURL alloc] initWithString:[buyString stringByAddingPercentEscapesUsingEncoding:NSASCIIStringEncoding]];
[[UIApplication sharedApplication] openURL:url];
[url release];