What separates this from Nokogiri? (Don't take that as critical, more working code out in the world is better. Just wondering, as I use Nokogiri heavily for our company chat-bot, and couldn't tell the answer at a quick glance.)
Reposting a comment by the author from the article:
> Upton depends on Nokogiri, which is basically the BeautifulSoup port for Ruby.
> If you just used vanilla Nokogiri, you'd be responsible for writing code to fetch, save (maybe), debug and sew together all the pieces of your web scraper. Upton does a lot of that work for you, so you can skip the boilerplate.