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Sample config.ru for various Ruby web frameworks
This guide shows example config.ru files for various Ruby web frameworks.
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Camping
require 'camping'
##### Begin Camping application
Camping.goes :Blog
...your application code here...
##### End Camping application
run Rack::Adapter::Camping.new(Blog)
For Camping versions 2.0 and up, using run Blog as the final line will do.
Grape
In config.ru:
require File.expand_path('my_app', File.dirname(__FILE__))
run MyApp
In my_app.rb:
require 'grape'
class MyApp < Grape::API
...
end
Halcyon
require 'halcyon'
$LOAD_PATH.unshift(Halcyon.root / 'lib')
Halcyon::Runner.load_config Halcyon.root/'config'/'config.yml'
run Halcyon::Runner.new
Mack
ENV["MACK_ENV"] ||= ENV["RACK_ENV"]
load("Rakefile")
require 'mack'
run Mack::Utils::Server.build_app
Merb
require 'rubygems'
require 'merb-core'
Merb::Config.setup(
:merb_root => ::File.expand_path(::File.dirname(__FILE__)),
:environment => ENV['RACK_ENV']
)
Merb.environment = Merb::Config[:environment]
Merb.root = Merb::Config[:merb_root]
Merb::BootLoader.run
run Merb::Rack::Application.new
Padrino
require File.expand_path("../config/boot.rb", __FILE__)
run Padrino.application
Rails 2.3
If your application is based on Rails ≥ 3.0, then you do not need to create a config.ru. Rails ≥ 3.0 applications already contain a config.ru.
If your application is based on Rails 2.3, then you need to create a config.ru that contains:
require File.expand_path(File.dirname(__FILE__) + '/config/environment')
use Rails::Rack::LogTailer
use Rails::Rack::Static
run ActionController::Dispatcher.new
Ramaze
require "ramaze"
Ramaze.trait[:essentials].delete Ramaze::Adapter
require "start"
Ramaze.start!
run Ramaze::Adapter::Base
Sinatra
In config.ru:
require File.expand_path('my_app', File.dirname(__FILE__))
run MyApp
In my_app.rb:
require 'sinatra/base'
class MyApp < Sinatra::Base
get "/" do
"hello world"
end
end
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