INK API Implementation

config.ru

require "net/http"
require 'cgi'

class Hash
  # Create a Query String from a Hash
  def to_query
    def to_query
      map { |k,v|
        ::CGI.escape(k.to_s)+"="+::CGI.escape(v)
      }.join("&")
    end
  end
end

class Ink

  # Constructor
  def initialize(options)
    @secret = options[:secret].to_s
    @token = options[:token].to_s
  end

  # Create a digest string from a Hash
  def digest(hash)
    ::OpenSSL::HMAC::hexdigest("sha256", @secret, hash.to_query)
  end
  
  # Fetch a render document
  def fetch(view)
    data = {:view => view.to_s, :type => 'haml'}
    data[:digest] = digest(data)
    data[:token] = @token
    uri = URI("http://inkit.org/api/document?"+data.to_query)
    response = ::Net::HTTP.get uri
  end

end    


ink = Ink.new({
  :secret => "dK0UBjOLKmm",
  :token => "NeQXssZHuiX"
})
    
run lambda { |env|
  [200, {"Content-Type" => "text/plain"}, [ink.fetch(:test01)]]
}