Sinatra (software)

Sinatra

File:Sinatralogo.png
Original author(s)	Blake Mizerany
Developer(s)	Konstantin Haase
Initial release	9 September 2007 (2007-09-09)
Stable release	1.4.7 / 24 January 2016 (2016-01-24)
Written in	Ruby
Operating system	Cross-platform
Type	Web application framework
License	MIT License
Website	www.sinatrarb.com

Sinatra is a free and open source software web application library and domain-specific language written in Ruby. It is an alternative to other Ruby web application frameworks such as Ruby on Rails, Merb, Nitro, and Camping. It is dependent on the Rack web server interface. It is named after musician Frank Sinatra.

Designed and developed by Blake Mizerany, Sinatra is small and flexible. It does not follow the typical model–view–controller pattern used in other frameworks, such as Ruby on Rails. Instead, Sinatra focuses on "quickly creating web-applications in Ruby with minimal effort."

Some notable companies and institutions that use Sinatra include Apple, BBC, the British Government's Government Digital Service, LinkedIn, the National Security Agency, Engine Yard, Heroku, GitHub, and Songbird. Travis CI provides much of the financial support for Sinatra's development.

Sinatra was created and open-sourced in 2007.

Example

#!/usr/bin/env ruby
require 'sinatra'

get '/' do
  redirect to('/hello/World')
end

get '/hello/:name' do
  "Hello #{params[:name]}!"
end

External links

• Sinatra's GitHub repository
• Video of Blake Mizerany and Adam Wiggins at RubyConf 2008