goliath_wrapped_request.rb

require 'goliath'

module Goliath
  class Request
    old_post_process = instance_method(:post_process)

    define_method(:post_process) do |results|
      status, headers, body = *results
      # Include any data here
      # All requests will pass here
      if env[:any] # my test condition 
        headers['Access-Control-Allow-Origin'] = '*'
      end
      old_post_process.bind(self).call(results)
    end
  end
end


class Hello < Goliath::API
  include Goliath::Validation

  def on_headers env, headers
    # Include any logic here
    if env['QUERY_STRING'] =~ /x/
      env[:any] = true
      raise Goliath::Validation::NotFoundError.new('It happens')
    end
  end

  def response env
    [200, {}, 'Hello World!']
  end

end