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.| Write Software, Well
The router is the entry point of your Rails application. It acts as the gatekeeper for all incoming HTTP requests, inspecting and sending them to a controller action; even filtering and rejecting them if necessary. In this article, we’ll do a deep dive into the Rails Router to understand it better.| Write Software, Well