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Ruby on Rails

Overview​

Ruby on Rails (Rails) is a server-side MVC framework for Ruby that popularized convention over configuration, scaffolding, and integrated tooling (Active Record, Action Pack, Active Job). It remains a strong choice for full-stack product teams shipping CRUD-heavy apps quickly.

Key concepts​

  • MVC — Models (Active Record), views (ERB/Hotwire), controllers.
  • Migrations — Schema evolution in Ruby DSL.
  • RESTful routing — Resourceful routes map cleanly to controllers.
  • Active Record — ORM with validations, callbacks, associations.
  • Hotwire — Turbo + Stimulus for modern HTML-over-the-wire UX.

Rails request cycle​

Sample: route + controller​

# config/routes.rb
Rails.application.routes.draw do
  get '/api/health', to: 'health#show'
end

# app/controllers/health_controller.rb
class HealthController < ApplicationController
  def show
    render json: { ok: true }
  end
end

References​