Ruby class for Download Aggregrated Data from GameAnalytics.com

ga.rb

# Communicate with GameAnalytics.com to download aggragrated data.
# Author:  Jesdakorn S. (@thet0ny / http://www.ton.in.th / http://zaqqle.com)

require 'rubygems'
require 'active_support/core_ext/date'
require 'active_support/core_ext/numeric/time' # Date time helper (when use outside Rails)

require 'HTTParty' # gem install httparty
require 'JWT' # gem install jwt

class GameAnalytic
  attr_accessor :game_id, :api_key
  
  API_BASE_URL = 'https://query.gameanalytics.com'

  def initialize(game_id, data_api_key)
    self.game_id = game_id
    self.api_key = data_api_key
    @game_path = "/v1/games/#{game_id}/"
  end

  def get_dau
    metric = 'core/DAU/'
    start_time = (Date.today.to_time - 1.day).to_i
    end_time = (start_time + 24.hours).to_i
    aggr = 'sum'
    query = "#{metric}?start=#{start_time}&end=#{end_time}&aggregation=#{aggr}"
    api_path = @game_path + query

    full_path = API_BASE_URL + api_path

    HTTParty.get full_path, :headers => { "Authorization" => generate_signature(api_path) }
  end

  private
  def generate_signature(path)
    JWT.encode({"url" => path}, self.api_key)
  end

end

ga = GameAnalytic.new("YOUR GAME ID", "YOUR DATA API KEY")
puts ga.get_dau