Instead of calling super to pass the request on, return a 404.
The modified app looks like this:
# app/metal/poller.rb
class Poller
def self.call(env)
if env["PATH_INFO"] =~ /^\/poller/
[200, {"Content-Type" => "text/html"}, "Hello, World!"]
else
[404, {"Content-Type" => "text/html"}, "Not Found"]
end
end
end
But you aren't locked in to just Rails:
# app/metal/api.rb
require 'sinatra'
Sinatra::Application.default_options.merge!(:run => false, :env => :production)
Api = Sinatra.application unless defined? Api
get '/interesting/new/ideas' do
'Hello Sinatra!'
end
# app/metal/poller.rb
class Poller < Rails::Rack::Metal
def call(env)
if env["PATH_INFO"] =~ /^\/poller/
[200, {"Content-Type" => "application/json"}, Message.recent.to_json]
else
super
end
end
end
* There is a generator to help you get started
`script/generate metal poller`
* Also, metal bits can be ran standalone with rackup
`rackup app/metal/poller.rb`