The Definitive Guide to Rack for Rails DevelopersThe Definitive Guide to Rack for Rails Developers The word Rack actually refers to two things: a protocol and a gem. This article explains pretty much everything you need to know about Rack as a Rails developer. We will start by understanding the problem Rack solves and move to more advanced concepts like middleware and the Rack DSL. P.S. I originally published this post last year, when I was just
