Rails Hello World API - Ruby-on-rails Typing CST Test

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Rails Hello World API — Ruby-on-rails Code

A minimal Rails API controller returning Hello World.

# config/routes.rb
Rails.application.routes.draw do
	get '/hello', to: 'hello#index'
end

# app/controllers/hello_controller.rb
class HelloController < ApplicationController
	def index
		render json: { message: 'Hello, Rails!' }
	end
end

Ruby-on-rails Language Guide

Ruby on Rails (Rails) is a full-stack, server-side web application framework written in Ruby. It emphasizes convention over configuration, DRY (Don't Repeat Yourself) principles, and rapid development.

Primary Use Cases

▸Building full-stack web applications
▸Developing RESTful APIs
▸Rapid MVP and startup projects
▸Database-driven enterprise apps
▸E-commerce platforms and SaaS products

Notable Features

▸Convention over configuration
▸MVC architecture
▸Active Record ORM
▸Built-in testing framework
▸RESTful routing and resource management

Origin & Creator

Ruby on Rails was created by David Heinemeier Hansson and first released in 2004.

Industrial Note

Rails is ideal for startups and projects requiring fast prototyping, robust full-stack development, and applications with database-driven backends.

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Rails Simple Counter App Rails Query Parameter Example Rails JSON Response Example Rails POST Form Example Rails Path Parameter Example Rails Error Handling Example Rails Redirect Example Rails Multiple Routes Example Rails Service Object Example

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