Wallpaper Bot
A weekend project from 2017. Every week it authenticated to Reddit via OAuth, pulled the top 25 posts from r/wallpapers, filtered down to anything above 1000 karma, downloaded the images (with special-cased handling for Imgur links vs. direct URLs), zipped them up, and emailed the archive. Built in Java with JRAW for the Reddit API, MongoDB for config storage, and a small Jersey/Grizzly server. Never fully shipped the email step, but a good excuse to dig into Reddit's OAuth flow and work with a third-party Java API client.
JavaJRAWReddit APIMongoDBGradle