Sudocode on how I would like Grape to work with Goliath

gistfile1.rb

# Sudocode on how I would like grape to work with Goliath
# http://localhost:9000/randomuser #=> random user in json

require 'goliath'
require 'grape'
require 'em-synchrony/activerecord'

class User < ActiveRecord::Base
end

class MyAPI < Grape::API

  get 'randomuser' do
    User.offset(rand(User.count)).first
  end

end

class Srv < Goliath::API

  map "/" do
    run MyAPI.new(self)
  end

end

The ActiveRecord part of this sudocode already works great - see https://github.com/postrank-labs/goliath/blob/master/examples/activerecord/srv.rb

But the integration with Grape part is completely theoretical.

I do something like this in my project to get a RESTful interface to an API. I should probably use class inheritance, though.

module Goliath
  module RESTfulAPI
    def self.included(base)
      base.class_eval do
        attr_reader :request
      end
    end

    def response(env)
      @request = ::Rack::Request.new(env)

      http_method = env['REQUEST_METHOD'].downcase
      response = send(http_method)

      if response.is_a?(Array) && response.size == 3
        response
      else
        [200, {}, response]
      end
    end
  end
end

class InboxAPI < Goliath::API
  include Goliath::RESTfulAPI

  def get
    Inbox.find params.slice("rpt_code")
  end
end

Also, you can see I need to fix the naive tuple check :).

@jpfuentes2 do you have any other examples of Goliath and REST APIs? Or know of any out there?

Now I've created a Goliath + Grape example here: https://github.com/djones/grape-goliath-example I'm interested to write the same example just with Goliath and see how it compares speed wise.