Product Dictionary Keys
Keys for identifying products and the tokens for affiliates and campaigns.
Overview
These dictionary keys are used in the parameter for the loadProduct(withParameters:completionBlock:) method.
The SKStoreProductParameterITunesItemIdentifier key represents the product to display, and is always required. Other keys provide optional affiliate or promoted product information.
Learn more about the Affiliate Program at https://apple.com/itunes/affiliates.