Rack: como utilizar o poder dos Middlewares em suas aplicações Rails
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Rack is a basic interface between web servers and Ruby frameworks. Middlewares are filters that can intercept a request and alter the response. Common middlewares include Rack::Cache for caching and Rack::ETag for handling ETags. Developers can also create their own custom middlewares to add functionality to Rack and Ruby on Rails applications.
![env = { “REQUEST_METHOD” => “GET” , “ QUERY_STRING” => “par=value” , ... }, return [ 200 , { “Content-Type” => “text/plain” }, “ Hello World!” ]](https://image.slidesharecdn.com/rack-middlewares-rails-final-090912114941-phpapp02/85/Rack-como-utilizar-o-poder-dos-Middlewares-em-suas-aplicacoes-Rails-7-320.jpg)
![Obrigado! @cleitonfco [email_address] http://cleitonfco.com.br](https://image.slidesharecdn.com/rack-middlewares-rails-final-090912114941-phpapp02/85/Rack-como-utilizar-o-poder-dos-Middlewares-em-suas-aplicacoes-Rails-21-320.jpg)
Rack: como utilizar o poder dos Middlewares em suas aplicações Rails
- 1. Rack Como utilizar o poder dos Middlewares em suas aplicações Rails
- 2. Rack é uma interface básica entre servidores web e frameworks ruby
- 4. Crie: Aplicações que não dependem de framework Seu próprio framework Middlewares
- 6. Um simples objeto ruby não precisa ser uma classe Método call recebe um parametro, o enviroment retorna um array com três valores
- 7. env = { “REQUEST_METHOD” => “GET” , “ QUERY_STRING” => “par=value” , ... }, return [ 200 , { “Content-Type” => “text/plain” }, “ Hello World!” ]
- 10. Middlewares
- 11. são filtros que podem ser usados para interceptar um request e alterar o response
- 12. HTTP Middleware Middleware Aplicação
- 13. Sinatra
- 14. Sinatra Rails
- 15. $ rake middleware use Rack::Lock use ActionController::Failsafe use ActionController::Reloader use ActionController::Session::CookieStore, ... use ActionController::ParamsParser use Rack::MethodOverride use Rack::Head use ActiveRecord::ConnectionAdapters::Connection... use ActiveRecord::QueryCache run ActionController::Dispatcher.new
- 16. Rack Contrib http://github.com/rack/rack-contrib/ Rack::ETag Rack::JSONP Rack::Locale Rack::MailExceptions Rack::StaticCache Rack::TimeZone Rack::Callbacks Rack::NotFound Rack::Deflect Rack::ResponseCache Rack::RelativeRedirect Rack::AcceptFormat Rack::Cookies Outros...
- 18. Rack::Cache http://tomayko.com/src/rack-cache/ Rack Javascript Minify http://github.com/lucianopanaro/rack-javascript-minifier/
- 19. Rack::Cache http://tomayko.com/src/rack-cache/ Rack Javascript Minify http://github.com/lucianopanaro/rack-javascript-minifier/ Rack Roll http://github.com/semanticart/rack-roll/
- 20. você pode criar seu próprio middleware
- 21. Obrigado! @cleitonfco [email_address] http://cleitonfco.com.br