A simple iOS client that GETs unauthenticated or authenticated (OAuth) JSON data from and POSTs authenticated data to a REST service.
Although it's easy enough to use URLSessions for unauthenticated calls and authenticated ones using a tool like OAuthSwift, this JSONClient simplifies those operations and serves as the base class of the clients in my SwiftDiscogs, SwiftMusicbrainz, and SwiftGenius clients.
See the Example page for usage instructions.