Fetch, digest, and archive data from a web service.
JHDataUtils
JHDataUtils does the bulk of the heavy lifting with an assist from AFNetworking. Instances can queue new download operations and can suspend, resume, or cancel any that are pending. JHDataUtils also takes advantage of AFNetworking's reachability tools and posts notifications if the app's reachability status changes.
JHDownloadOperation
Subclassing AFHTTPRequestOperation, JHDownloadOperation declares a protocol delegates can use to interact with the operation when it finishes its task.
JHDataContainer
A thin wrapper with a name, timestamp, and payload, a JHDataContainer object can be passed to JHCache to be stored on disk.
JHCache
JHCache contains a number of class methods for storing and managing data on disk with minimal overhead.