rack-vhost

Rack middleware to dispatch to an application via host header.

Install gem:

gem install rack-vhost

or in Gemfile:

source :rubygems
gem 'rack-vhost'

Example config.ru:

require 'rack/vhost'

class Router
  def call(env)
    [200, { 'Content-Type' => 'text/plain' }, 'Router app']
  end
end

class APIApp
  def call(env)
    [200, { 'Content-Type' => 'text/plain' }, 'API app']
  end
end

class MainApp
  def call(env)
    [200, { 'Content-Type' => 'text/plain' }, 'Main app']
  end
end

# This should come after all other middleware since it passes directly to the app
use Rack::Vhost, :vhost => '^api', :app => APIApp.new
use Rack::Vhost, :vhost => 'www.philcolabs.com', :app => MainApp.new
run Router.new