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Rack

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Rack¶

http://route477.net/w/?RackReferenceJa

introduction¶

http://gihyo.jp/dev/serial/01/ruby/0023

standalone¶

class App
  def call(env)
    [
      200,
      { 'Content-Type' => 'text/html' },
      ['<html><body>Hello Rack !</body></html>']
    ]
  end
end

require File.dirname(__FILE__)+'/app'
run App.new

実行

$ rackup

on passenger¶

VirtualHost(ROOT)¶

Sub URL¶

middle ware¶

http://gihyo.jp/dev/serial/01/ruby/0025