What's Rack

A Quick Introduction to Rack – SATISH TALIM Copyright 2013 Satish Talim What’s Rack? In the words of the author of Rack – Christian Neukirchen: Rack aims to provide a minimal API for connecting web servers supporting Ruby (like WEBrick, Mongrel etc.) and Ruby web frameworks (like Rails, Sinatra etc.). Web frameworks such as Sinatra are built on top of Rack or have a Rack interface for allowing web application servers to connect to them.