Sinatra Introduction
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This document provides an overview of Sinatra and how it compares to Rails. It begins with an agenda and introduces Sinatra as a Ruby web framework that is not based on MVC. It then contrasts the terminology and concepts between Sinatra and Rails such as HTTP actions, routes, views, helpers and configuration. Examples are provided of using Sinatra for simple web applications and APIs. Rack is introduced as a way to integrate Sinatra with Rails. Performance comparisons show Sinatra to have faster request times than Rails. Resources for further learning about Sinatra, Rack, and scaling Rails are provided.
![Requests per second: 81.09 [#/sec] (mean)
Time per request: 12.332 [ms] (mean) Rails action
Requests per second:450.56 [#/sec] (mean) Sinatra
Time per request: 2.219 [ms] (mean)
Ubuntu 8.04, Intel Atom N270 @1.60GHz](https://image.slidesharecdn.com/sinatra-basic-090630070854-phpapp02/85/Sinatra-Introduction-19-320.jpg)
![class OldPollerController < ApplicationController
def poller
render :text => "Hello World!"
end
end
class Poller < Rails::Rack::Metal
def call(env)
if env["PATH_INFO"] =~ /^/poller/
[[200], {"Content-Type" => "text/html"}, "Hello, World!"]
else
[[404], {"Content-Type" => "text/html"}, "Not Found"]
end
end
end
25](https://image.slidesharecdn.com/sinatra-basic-090630070854-phpapp02/85/Sinatra-Introduction-38-320.jpg)
![Requests per second: 81.09 [#/sec] (mean) Rails action
Time per request: 12.332 [x`x] (mean)
Requests per second: 163.75 [#/sec] (mean) Metal + Sinatra
Time per request: 6.107 [ms] (mean)
Ubuntu 8.04, Intel Atom N270 @1.60GHz](https://image.slidesharecdn.com/sinatra-basic-090630070854-phpapp02/85/Sinatra-Introduction-39-320.jpg)
Sinatra Introduction
- 2. Agenda • Sinatra Introduction • Real Example • Rack • Rails Intergation
- 3. • http://twitter.com/xdite • http://blog.xdite.net • Rails Developer
- 4. Sinatra is ... • ruby web framework library • not MVC ( Model-View-Controller ) • DSL for defining RESTful HTTP actions
- 5. RAILS LINGO ORM , MVC , Testing , Mail , Generator, RJS, I18n, Template , Engine .....
- 6. SINATRA LINGO GET / POST / PUT / DELETE , request paramenters, response, views , helpers , configure , rack
- 9. Hello World!
- 10. HTTP actions
- 11. Routes
- 12. Views
- 13. Helpers
- 14. Filter
- 15. Configure
- 17. • Web Service / API • Tiny Web Application • Rails Metal
- 18. Web Service / API
- 19. Requests per second: 81.09 [#/sec] (mean) Time per request: 12.332 [ms] (mean) Rails action Requests per second:450.56 [#/sec] (mean) Sinatra Time per request: 2.219 [ms] (mean) Ubuntu 8.04, Intel Atom N270 @1.60GHz
- 21. • simple • cherry pick • ActiveRecord / Datamapper • Prototype / jQuery
- 23. twitter IE6
- 25. • CodeIgniter - PHP framework • Twitter API • LOC : 1000+ • NOT support CJK
- 26. require 'rubygems' require 'sinatra' require 'twitter_search' get '/' do @client = TwitterSearch::Client.new 'politweets' @results = @client.query :q => '@MrIE6' erb :home end 10 ..
- 27. • ORM • Paginate
- 28. 40
- 30. Rails Metal with Sinatra
- 31. Rack provides a minimal interface between webservers supporting Ruby and Ruby frameworks Core Code Middleware Mongrel rack middleware
- 34. http Profiling Security Caching Middleware Middleware Middleware Handler Core Code for Rack
- 36. Scaling Rails - Metal • Rack action • Sinatra Metal app
- 37. Performance
- 38. class OldPollerController < ApplicationController def poller render :text => "Hello World!" end end class Poller < Rails::Rack::Metal def call(env) if env["PATH_INFO"] =~ /^/poller/ [[200], {"Content-Type" => "text/html"}, "Hello, World!"] else [[404], {"Content-Type" => "text/html"}, "Not Found"] end end end 25
- 39. Requests per second: 81.09 [#/sec] (mean) Rails action Time per request: 12.332 [x`x] (mean) Requests per second: 163.75 [#/sec] (mean) Metal + Sinatra Time per request: 6.107 [ms] (mean) Ubuntu 8.04, Intel Atom N270 @1.60GHz
- 40. Q &A
- 41. Resources • Scaling Rails : Episode #14 Rack • RailsCast: Episode #251 Rack Middleware • Pragprog.com : Classy Web Development with Sinata • Github / xdite : tweesage-message-wall