6 min read
RubyRackRuby on Rails

Writing Middleware in Rails

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

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.

4 min read
Ruby on RailsNext.js

Who Owns a Day? Lessons From a Timezone Bug

Common bug when handling timezone changes that causes incorrect date and time display

7 min read
Ruby on Rails

The Real Cost of Polymorphic Association

Understanding the hidden costs and trade-offs of polymorphic associations in Rails.

9 min read
Ruby on Rails

How Rails Boots: A Mental Model of the Initialization Process

How does Rails prepare your application to handle requests? What are the key steps in the initialization process?