This document contains the slides from a presentation on the Sinatra web framework. Some key points: - Sinatra is described as a library rather than a framework for building web applications in Ruby. It provides a DSL for defining routes and builds on top of Rack. - Applications are built by defining routes and writing code, then including Sinatra. Sinatra allows developers to work with HTTP directly and build applications from the ground up. - Features like classes, layouts, and helpers are demonstrated. Additional tools like Vegas are presented for distributing and running Sinatra applications across multiple servers. - In conclusion, the speaker encourages all developers to use Sinatra and notes that all code shown is available as

1. Sinatra:
The Framework Within
Aaron Quint / Quirkey NYC, LLC
/
Ruby Kaigi / July 18, 2009
Friday, July 31, 2009

2. Brooklyn, New York
Friday, July 31, 2009

3. Sinatra.
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4. I didn’t write Sinatra,
…
I just love it.
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5. Sinatra.
require 'sinatra'
get '/' do
"Don't you hate pants?"
end
Friday, July 31, 2009

6. Sinatra.
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7. Sinatra.
require 'sinatra'
get '/homer/hate/:hate' do
"Don't you hate #{params[:hate]}?"
end
Friday, July 31, 2009

8. Sinatra.
Friday, July 31, 2009

9. Sinatra.
require 'sinatra'
get '/homer/hate/:hate.json' do
content_type 'json'
"{'hate': '#{params[:hate]}'}"
end
get '/homer/hate/:hate' do
"Don't you hate #{params[:hate]}?"
end
Friday, July 31, 2009

10. Classy.
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11. Sinatra. Classy.
require 'sinatra'
require 'rack/flash'
class ClassyApp < Sinatra::Default
set :sessions, true
use Rack::Flash
get '/' do
haml :index
end
post '/classify' do
flash[:message] = 'Your text has been classified.'
@text = "I do say, #{params[:text]}. Quite!"
haml :classify
end
end
Friday, July 31, 2009

12. Sinatra. Classy.
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13. Sinatra. Classy.
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14. Sinatra
is not
a framework.
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15. Framework.
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16. Not a Framework.
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17. Sinatra.
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18. Not MVC.
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19. WDNNSP
(We Don’t Need No Stinkin’ Pattern)
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20. Sinatra
is a
library.
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21. Sinatra as a library.
‣A DSL for defining routes.
‣ DSL
‣A nicer Rack.
‣ Rack
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22. Friday, July 31, 2009

23. Code first.
Then Sinatra.
Sinatra
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24. My Awesome
Ruby Project.
Ruby
Includes Sinatra.
Sinatra
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25. Sinatra!
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26. HTTP as
a language.
HTTP
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27. Sinatra
speaks HTTP.
Sinatra HTTP
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28. Do you speak HTTP?
HTTP
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29. GET!
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30. RESPONSE!
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31. User Rack
RestClient Sinatra
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32. Friday, July 31, 2009

33. The power of
the local web.
Web
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34. The power of
localhost.
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35. Friday, July 31, 2009

36. Friday, July 31, 2009

37. CALLING ALL
DEVELOPERS!
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38. CALLING ALL
DEVELOPERS!
require 'sinatra'
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39. CALLING ALL DEVELOPERS!
Awesome
Codes.
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40. CALLING ALL DEVELOPERS!
Sinatra!
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41. CALLING ALL DEVELOPERS!
require 'sinatra'
module MyProject
class App < ::Sinatra::Default
set :root, File.join(File.dirname(__FILE__), '..', '..')
set :app_file, __FILE__
#...
get '/' do
# ... SOMETHING AWESOME
end
# ...
end
end
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42. CALLING ALL DEVELOPERS!
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43. CALLING ALL DEVELOPERS!
Sinatra!
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44. require 'sinatra'
module Gembox
CALLING ALL DEVELOPERS!
class App < ::Sinatra::Default
include Gembox::ViewHelpers
include WillPaginate::ViewHelpers
@@root = File.expand_path(File.join(File.dirname(__FILE__), '..', '..'))
set :root, @@root
set :app_file, __FILE__
before do
Gembox::Gems.load
@gems = Gembox::Gems.local_gems.paginate :page => params[:page], :per_page => 30
@stats = Gembox::Gems.stats
end
#...
get '/' do
redirect '/gems'
end
get %r{/gems/doc/([w-_]+)/?([d.]+)?/?(.*)?} do
#...
end
get %r{/gems/([w-_]+)/?([d.]+)?/?} do
# ...
haml :gem, :layout => show_layout
end
get '/gems/?' do
# ...
haml "gems_#{@show_as}".to_sym, :layout => show_layout
end
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45. Introducing
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46. Super
Simple
Sinatra
Starter.
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47. Vegas
#!/usr/bin/env ruby
require File.expand_path(File.dirname(__FILE__) +
"/../lib/gembox")
require 'vegas'
Vegas::Runner.new(Gembox::App, 'gembox')
Friday, July 31, 2009

48. Vegas
[11:05 PM:~] $ gembox -h
Usage: gembox [options]
Vegas options:
-s, --server SERVER serve using SERVER (webrick/mongrel)
-o, --host HOST listen on HOST (default: 0.0.0.0)
-p, --port PORT use PORT (default: 5678)
-e, --env ENVIRONMENT use ENVIRONMENT for defaults (default: development)
-F, --foreground don't daemonize, run in the foreground
-K, --kill kill the running process and exit
-S, --status display the current running PID and URL then quit
Common options:
-h, --help Show this message
--version Show version
Friday, July 31, 2009

49. Vegas
$ sudo gem install gembox
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50. Vegas
$ sudo gem install neerajdotname-javascript_lab
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51. The FUTURE!
‣Gems+Vegas as a distribution platform.
‣
‣Even easier workflow for mounting.
‣
‣Vegas as the central brain.
‣Vegas
‣Distribute tasks across the local network.
‣
Friday, July 31, 2009

52. Thank you!
Thanks to Sougo Tsuboi, Leonard
Chin and the other Ruby Kaigi
Volunteers
Friday, July 31, 2009

53. Av
ai
la
bl
e
fo
rh
ire
!
Aaron Quint
aaron@quirkey.com
http://www.quirkey.com
All code available and open source at:
http://code.quirkey.com/vegas
http://code.quirkey.com/gembox
Friday, July 31, 2009