Campus Party 2010

1. A apresentação comecará em alguns minutos ... Wednesday, January 27, 2010

2. A apresentação comecará em alguns minutos ... Wednesday, January 27, 2010

3. AkitaOnRails.com Wednesday, January 27, 2010

4. ~1h > 100 slides Wednesday, January 27, 2010

5. www.slideshare.net/akitaonrails www.akitaonrails.com/ les/entendendo-a-web-movies.zip fabio.akita@locaweb.com.br Wednesday, January 27, 2010

6. Entendendo a Web Lições sobre Desenvolvimento Web com Ruby Fabio Akita Wednesday, January 27, 2010

7. Pensamento Tradicional Wednesday, January 27, 2010

8. Browser Web Server MySQL Wednesday, January 27, 2010

11. /site/default.asp Wednesday, January 27, 2010

12. /site/default.asp include header Wednesday, January 27, 2010

13. /site/default.asp include header while ... Wednesday, January 27, 2010

14. /site/default.asp include header while ... Response.write Wednesday, January 27, 2010

15. /site/default.asp include header while ... Response.write include footer Wednesday, January 27, 2010

16. Ruby? Wednesday, January 27, 2010

17. Wednesday, January 27, 2010

18. Ruby on Rails 2.3 Ruby 1.8 “Novo” Ruby 1.9 Wednesday, January 27, 2010

21. x mais lento que C++ Wednesday, January 27, 2010

22. x mais lento que C++ Python 2 Ruby 1.9 Perl JRuby Python 3 PHP Ruby 1.8.6 0 50 100 150 200 Wednesday, January 27, 2010

31. 6 Wednesday, January 27, 2010

32. Menos Requisições Wednesday, January 27, 2010

35. DEVELOPMENT Wednesday, January 27, 2010

36. PRODUCTION Wednesday, January 27, 2010

37. Mini que CSS e Javascript Wednesday, January 27, 2010

38. Juicer http://github.com/cjohansen/juicer/ Wednesday, January 27, 2010

40. • git clone git://github.com/cjohansen/ juicer.git Wednesday, January 27, 2010

41. • git clone git://github.com/cjohansen/ juicer.git • cd juicer ; rake build Wednesday, January 27, 2010

42. • git clone git://github.com/cjohansen/ juicer.git • cd juicer ; rake build • gem install pkg/juicer-0.9.9.gem Wednesday, January 27, 2010

43. • git clone git://github.com/cjohansen/ juicer.git • cd juicer ; rake build • gem install pkg/juicer-0.9.9.gem Wednesday, January 27, 2010

44. • git clone git://github.com/cjohansen/ juicer.git • cd juicer ; rake build • gem install pkg/juicer-0.9.9.gem • ./script/plugin install git://github.com/ ktheory/juicer-rails.git Wednesday, January 27, 2010

45. • juicer install yuicompressor • juicer install jslint Wednesday, January 27, 2010

46. /app/views/layouts/application.html.erb <%= juiced_tag '/stylesheets/application.css' %> <%= yield(:head) %> </head> <body> ... <%= juiced_tag '/javascripts/application.js' %> </body> Wednesday, January 27, 2010

47. /app/views/layouts/application.html.erb <%= juiced_tag '/stylesheets/application.css' %> <%= yield(:head) %> </head> <body> ... <%= juiced_tag '/javascripts/application.js' %> </body> Wednesday, January 27, 2010

48. /public/stylesheets/application.css @import url("reset.css"); @import url("base.css"); @import url("fonts.css"); ... /public/javascripts/application.js /* @depends jquery-1.4.min.js @depends jquery.edit_in_place.js @depends jqueryamail.js */ ... Wednesday, January 27, 2010

49. /public/stylesheets/application.css @import url("reset.css"); @import url("base.css"); @import url("fonts.css"); ... /public/javascripts/application.js /* @depends jquery-1.4.min.js @depends jquery.edit_in_place.js @depends jqueryamail.js */ ... Wednesday, January 27, 2010

51. • juicer merge public/stylesheets/ application.css • public/stylesheets/application.min.css Wednesday, January 27, 2010

52. • juicer merge public/stylesheets/ application.css • public/stylesheets/application.min.css • juicer merge -i public/javascripts/ application.js • public/javascripts/application.min.js Wednesday, January 27, 2010

55. Asset Hosts Navegadores abrem poucas conexões simultâneas por domínio Wednesday, January 27, 2010

57. /app/controllers/hello_controller.rb def gallery gallery_path = File.join(Rails.root, "public/images/gallery/") @images = Dir.glob(gallery_path + "*").map{ |f| f.gsub(gallery_path, "") } end Wednesday, January 27, 2010

58. /app/controllers/hello_controller.rb def gallery gallery_path = File.join(Rails.root, "public/images/gallery/") @images = Dir.glob(gallery_path + "*").map{ |f| f.gsub(gallery_path, "") } end /app/views/hello/gallery.html.erb <% title "Gallery" %> <% @images.each do |image| -%> <%= image_tag "gallery/#{image}" %> <% end -%> Wednesday, January 27, 2010

59. /app/controllers/hello_controller.rb def gallery gallery_path = File.join(Rails.root, "public/images/gallery/") @images = Dir.glob(gallery_path + "*").map{ |f| f.gsub(gallery_path, "") } end /app/views/hello/gallery.html.erb <% title "Gallery" %> <% @images.each do |image| -%> <%= image_tag "gallery/#{image}" %> <% end -%> Wednesday, January 27, 2010

62. /con g/environments/production.rb config.action_controller.asset_host = Proc.new do |source, request| protocol = if request.ssl? request.headers["USER_AGENT"] =~ /(Safari)/ ? "http" : "https" else "http" end "#{protocol}://asset#{rand(6) + 1}.akitaonrails.local:3000" end Wednesday, January 27, 2010

63. /con g/environments/production.rb config.action_controller.asset_host = Proc.new do |source, request| protocol = if request.ssl? request.headers["USER_AGENT"] =~ /(Safari)/ ? "http" : "https" else "http" end "#{protocol}://asset#{rand(6) + 1}.akitaonrails.local:3000" end Wednesday, January 27, 2010

64. /etc/hosts ## # Host Database # # localhost is used to configure the loopback interface # when the system is booting. Do not change this entry. ## 127.0.0.1 localhost 255.255.255.255 broadcasthost ::1 localhost fe80::1%lo0 localhost 127.0.0.1 asset1.akitaonrails.local asset2.akitaonrails.local asset3.akitaonrails.local asset4.akitaonrails.local asset5.akitaonrails.local asset6.akitaonrails.local www.akitaonrails.local Wednesday, January 27, 2010

67. Javascript embaixo! Wednesday, January 27, 2010

68. /app/views/layouts/application.html.erb <head> <title><%= h(yield(:title) || "Untitled") %></title> <%= stylesheet_link_tag 'application' %> <script src="http://ajax.googleapis.com/ajax/libs/jquery/1.4.0/jquery.min.js" type="text/javascript"></script> <script src="http://ajax.googleapis.com/ajax/libs/jqueryui/1.7.2/jquery-ui.min.js" type="text/javascript"></script> <script src="http://ajax.googleapis.com/ajax/libs/swfobject/2.2/swfobject.js" type="text/javascript"></script> <script src="http://ajax.googleapis.com/ajax/libs/chrome-frame/1.0.2/ CFInstall.min.js" type="text/javascript"></script> <%= yield(:head) %> </head> <body> ... Wednesday, January 27, 2010

69. /app/views/layouts/application.html.erb <head> <title><%= h(yield(:title) || "Untitled") %></title> <%= stylesheet_link_tag 'application' %> <script src="http://ajax.googleapis.com/ajax/libs/jquery/1.4.0/jquery.min.js" type="text/javascript"></script> <script src="http://ajax.googleapis.com/ajax/libs/jqueryui/1.7.2/jquery-ui.min.js" type="text/javascript"></script> <script src="http://ajax.googleapis.com/ajax/libs/swfobject/2.2/swfobject.js" type="text/javascript"></script> <script src="http://ajax.googleapis.com/ajax/libs/chrome-frame/1.0.2/ CFInstall.min.js" type="text/javascript"></script> <%= yield(:head) %> </head> <body> ... Wednesday, January 27, 2010

70. /app/views/layouts/application.html.erb ... <script src="http://ajax.googleapis.com/ajax/libs/jquery/1.4.0/jquery.min.js" type="text/javascript"></script> <script src="http://ajax.googleapis.com/ajax/libs/jqueryui/1.7.2/jquery-ui.min.js" type="text/javascript"></script> <script src="http://ajax.googleapis.com/ajax/libs/swfobject/2.2/swfobject.js" type="text/javascript"></script> <script src="http://ajax.googleapis.com/ajax/libs/chrome-frame/1.0.2/ CFInstall.min.js" type="text/javascript"></script> <script type="text/javascript"> // meu javascript customizado ... </script> </body> </html> Wednesday, January 27, 2010

71. /app/views/layouts/application.html.erb ... <script src="http://ajax.googleapis.com/ajax/libs/jquery/1.4.0/jquery.min.js" type="text/javascript"></script> <script src="http://ajax.googleapis.com/ajax/libs/jqueryui/1.7.2/jquery-ui.min.js" type="text/javascript"></script> <script src="http://ajax.googleapis.com/ajax/libs/swfobject/2.2/swfobject.js" type="text/javascript"></script> <script src="http://ajax.googleapis.com/ajax/libs/chrome-frame/1.0.2/ CFInstall.min.js" type="text/javascript"></script> <script type="text/javascript"> // meu javascript customizado ... </script> </body> </html> Wednesday, January 27, 2010

72. Gzip Wednesday, January 27, 2010

73. • a2enmod de ate • editar /etc/apache2/mods-available/ de ate.conf Wednesday, January 27, 2010

74. /etc/apache2/mods-available/de ate.conf <IfModule mod_deflate.c> AddOutputFilterByType DEFLATE text/plain AddOutputFilterByType DEFLATE text/html AddOutputFilterByType DEFLATE text/xml AddOutputFilterByType DEFLATE text/css AddOutputFilterByType DEFLATE image/svg+xml AddOutputFilterByType DEFLATE image/x-icon AddOutputFilterByType DEFLATE application/xml AddOutputFilterByType DEFLATE application/xhtml+xml AddOutputFilterByType DEFLATE application/rss+xml AddOutputFilterByType DEFLATE application/javascript AddOutputFilterByType DEFLATE application/x-javascript AddOutputFilterByType DEFLATE application/x-httpd-php AddOutputFilterByType DEFLATE application/x-httpd-fastphp AddOutputFilterByType DEFLATE application/x-httpd-eruby DeflateCompressionLevel 9 # Netscape 4.X has some problems BrowserMatch ^Mozilla/4 gzip-only-text/html # Netscape 4.06-4.08 have some more problems BrowserMatch ^Mozilla/4.0[678] no-gzip # MSIE masquerades as Netscape, but it is fine BrowserMatch bMSIE !no-gzip !gzip-only-text/html </IfModule> Wednesday, January 27, 2010

75. Cabeçalhos de Expiração Wednesday, January 27, 2010

76. • a2enmod expires • editar /etc/apache2/mods-available/ expires.conf Wednesday, January 27, 2010

77. /etc/apache2/mods-available/expires.conf <IfModule mod_expires.c> ExpiresByType image/x-icon "access plus 1 year" ExpiresByType image/png "access plus 1 year" ExpiresByType image/jpg "access plus 1 year" ExpiresByType image/gif "access plus 1 year" ExpiresByType image/jpeg "access plus 1 year" ExpiresByType application/pdf "access plus 1 year" ExpiresByType audio/x-wav "access plus 1 year" ExpiresByType audio/mpeg "access plus 1 year" ExpiresByType video/mpeg "access plus 1 year" ExpiresByType video/mp4 "access plus 1 year" ExpiresByType video/quicktime "access plus 1 year" ExpiresByType video/x-ms-wmv "access plus 1 year" ExpiresByType application/x-shockwave-flash "access 1 month" ExpiresByType text/css "access plus 1 year" ExpiresByType text/javascript "access plus 1 year" </IfModule> Wednesday, January 27, 2010

78. Cache Busters Wednesday, January 27, 2010

79. /app/views/layouts/application.html.erb <%= stylesheet_link_tag 'application' %> <%= javascript_include_tag 'application' %> <%= image_tag "logo.png" %> Wednesday, January 27, 2010

80. /app/views/layouts/application.html.erb <link href="/stylesheets/application.css?1264345891" media="screen" rel="stylesheet" type="text/css" /> <script src="/javascripts/application.js?1264345058" type="text/javascript"></script> <img alt="Logo" src="/images/logo.png?1268943058" /> Wednesday, January 27, 2010

81. /app/views/layouts/application.html.erb <link href="/stylesheets/application.css?1264345891" media="screen" rel="stylesheet" type="text/css" /> <script src="/javascripts/application.js?1264345058" type="text/javascript"></script> <img alt="Logo" src="/images/logo.png?1268943058" /> Wednesday, January 27, 2010

82. Use CDNs Wednesday, January 27, 2010

83. /app/views/layouts/application.html.erb <script src="/javascripts/jquery-1.4.min.js" type="text/javascript"></script> <script src="/javascripts/jquery-ui-1.7.2.min.js" type="text/javascript"></script> <script src="/javascripts/swfobject-2.2.js" type="text/javascript"></script> <script src="/javascripts/CFInstall-1.0.2.min.js" type="text/javascript"></script> Wednesday, January 27, 2010

84. /app/views/layouts/application.html.erb <script src="http://ajax.googleapis.com/ajax/libs/jquery/1.4.0/jquery.min.js" type="text/javascript"></script> <script src="http://ajax.googleapis.com/ajax/libs/jqueryui/1.7.2/jquery-ui.min.js" type="text/javascript"></script> <script src="http://ajax.googleapis.com/ajax/libs/swfobject/2.2/swfobject.js" type="text/javascript"></script> <script src="http://ajax.googleapis.com/ajax/libs/chrome-frame/1.0.2/CFInstall.min.js" type="text/javascript"></script> Wednesday, January 27, 2010

85. /app/views/layouts/application.html.erb <script src="http://ajax.googleapis.com/ajax/libs/jquery/1.4.0/jquery.min.js" type="text/javascript"></script> <script src="http://ajax.googleapis.com/ajax/libs/jqueryui/1.7.2/jquery-ui.min.js" type="text/javascript"></script> <script src="http://ajax.googleapis.com/ajax/libs/swfobject/2.2/swfobject.js" type="text/javascript"></script> <script src="http://ajax.googleapis.com/ajax/libs/chrome-frame/1.0.2/CFInstall.min.js" type="text/javascript"></script> Wednesday, January 27, 2010

86. Search Wednesday, January 27, 2010

87. select * from ... where ... like “%...%” Wednesday, January 27, 2010

88. select * from ... where ... like “%...%” or ... like “%...%” or ... like “%...%” or ... like “%...%” or ... like “%...%” Wednesday, January 27, 2010

91. • Open Source Enterprise Search Platform • Baseado no famoso Lucene • Full Text Search, com relevância • Indexa documentos (Word, PDF, etc) • Interface REST • Roda em containers de Servlet (Tomcat) Wednesday, January 27, 2010

96. Rack A API mais simples possível que representa uma aplicação web genérica Wednesday, January 27, 2010

97. Server HTTP Wednesday, January 27, 2010

98. Server Request HTTP Wednesday, January 27, 2010

101. Server Request HTTP Response Wednesday, January 27, 2010

102. lambda { |env| [200, {"Content-type" => "text/plain"}, "Hello World"] } Wednesday, January 27, 2010

103. Requisição lambda { |env| [200, {"Content-type" => "text/plain"}, "Hello World"] } Wednesday, January 27, 2010

104. Requisição lambda { |env| [200, {"Content-type" => "text/plain"}, "Hello World"] } Status Wednesday, January 27, 2010

105. Requisição lambda { |env| [200, {"Content-type" => "text/plain"}, "Hello World"] } Status Cabeçalhos Wednesday, January 27, 2010

106. Requisição lambda { |env| [200, {"Content-type" => "text/plain"}, "Hello World"] } Status Cabeçalhos Corpo Wednesday, January 27, 2010

107. Request Response Rack (env) (Array) Wednesday, January 27, 2010

108. Request Response Rack (env) (Array) .call(env) Wednesday, January 27, 2010

109. Request Rack Rack Rack Response Wednesday, January 27, 2010

114. $ rake middleware use ActionDispatch::Static use Rack::Lock use Rack::Runtime use Rails::Rack::Logger use ActionDispatch::ShowExceptions use ActionDispatch::Callbacks use ActionDispatch::Cookies use ActionDispatch::Session::CookieStore use ActionDispatch::Flash use ActionDispatch::Cascade use ActionDispatch::ParamsParser use Rack::MethodOverride use ActionDispatch::Head use ActiveRecord::ConnectionAdapters::ConnectionManagement use ActiveRecord::QueryCache run Class Wednesday, January 27, 2010

115. gem install rack Wednesday, January 27, 2010

116. con g.ru # run with 'rackup -p 9292 config.ru' require 'rubygems' require 'rack' app = Proc.new { |env| [200, {"Content-Type" => "text/html"}, "Hello Rack!"] } run app Wednesday, January 27, 2010

117. rackup con g.ru Wednesday, January 27, 2010

119. Sinatra http://www.sinatrarb.com/ Wednesday, January 27, 2010

121. Otimizações Backend Wednesday, January 27, 2010

123. Browser pede página Se existir no cache, retorna Procura Rota Chama Controller Executa Ação Comunica com Banco de Dados Se existir no cache, pula Se processar assíncrono, pula Renderiza View Retorna resultado ao Browser Wednesday, January 27, 2010

133. Apache2 + mod_proxy_balancer Squid Varnish Wednesday, January 27, 2010

134. Memcached MySQL Proxy Assíncrono (ex. Resque, RabbitMQ) Wednesday, January 27, 2010

135. Load Balancer Wednesday, January 27, 2010

136. Load Balancer App Server Cache Wednesday, January 27, 2010

137. Load Balancer App Server App Server Cache Cache Wednesday, January 27, 2010

138. Load Balancer App Server App Server App Server Cache Cache Cache Wednesday, January 27, 2010

139. Load Balancer App Server App Server App Server Cache Cache Cache Wednesday, January 27, 2010

140. Load Balancer App Server App Server App Server Cache Cache Cache MySQL Master Wednesday, January 27, 2010

141. Load Balancer App Server App Server App Server Cache Cache Cache MySQL MySQL MySQL Master Slave Slave Wednesday, January 27, 2010

142. Load Balancer App Server App Server App Server Cache Cache Cache MySQL Proxy MySQL MySQL MySQL Master Slave Slave Wednesday, January 27, 2010

143. Load Balancer App Server App Server App Server Cache Cache Cache MySQL Proxy MySQL MySQL MySQL Master Slave Slave Wednesday, January 27, 2010

144. Load Balancer App Server App Server App Server Cache Cache Cache Job Server MySQL Proxy MySQL MySQL MySQL Master Slave Slave Wednesday, January 27, 2010

145. Tendências Wednesday, January 27, 2010

146. C10K Problem Wednesday, January 27, 2010

148. HTML 5 Web Sockets Reactor/Deferrable Pattern Wednesday, January 27, 2010

153. Browser Browser Browser App App App Banco Wednesday, January 27, 2010

157. Browser Browser Browser Browser App App App Banco Wednesday, January 27, 2010

158. Browser Browser Browser Browser App App App ? Banco Wednesday, January 27, 2010

159. Browser Browser Browser Banco Wednesday, January 27, 2010

160. Browser Browser Browser conexões/eventos Banco Wednesday, January 27, 2010

161. Browser Browser Browser conexões/eventos processamento/eventos Banco Wednesday, January 27, 2010

165. Browser Browser Browser Browser conexões/eventos processamento/eventos Banco Wednesday, January 27, 2010

166. Browser Browser Browser Browser conexões/eventos processamento/eventos Banco Wednesday, January 27, 2010

167. Browser Browser Browser Browser Browser conexões/eventos processamento/eventos Banco Wednesday, January 27, 2010

172. Aprendendo Mais Wednesday, January 27, 2010

173. RAILS LABS Wednesday, January 27, 2010

175. RAILSCASTS.com Wednesday, January 27, 2010

178. Entenda os browsers Entenda HTTP Arquiteturas Mundo Assíncrono Mundo não Relacional Wednesday, January 27, 2010

184. Thx! www.slideshare.net/akitaonrails www.akitaonrails.com/ les/entendendo-a-web-movies.zip fabio.akita@locaweb.com.br Wednesday, January 27, 2010

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Campus Party 2010