All100DaysToOffloadFitnessNext.jsProgrammingRackRubyRuby on RailsWriting
Jun 30, 2026
•6 min read•
RubyRackRuby on Rails

Writing Middleware in Rails

Understanding Rack middleware and how to configure it in a Rails application.

Jun 2, 2026
•11 min read•
RubyRackRuby on Rails

Understanding Rack: The Interface Between Ruby Web Servers and Frameworks

Learn why Rack was created, how the Rack protocol works, how middleware fits into the request-response cycle, and build a small Rack application from scratch.