API client for Smite game

smite_api.rb

# this API client is designed for Rails app, but you can use other framework
# by replacing key storage and http client as you see fit.
#
# Usage:
# api = SmiteApi.new
# api.testsession
# queue_stats = api.getqueuestats(123, 426)
#

class SmiteApi

  BASE_URL = 'http://api.smitegame.com/smiteapi.svc'
  METHODS = %w[
  testsession
  getdataused
  getdemodetails
  getesportsproleaguedetails
  getfriends
  getgodranks
  getgods
  getgodrecommendeditems
  getitems
  getmatchdetails
  getmatchplayerdetails
  getmatchidsbyqueue
  getleagueleaderboard
  getleagueseasons
  getmatchhistory
  getmotd
  getplayer
  getplayerstatus
  getqueuestats
  getteamdetails
  getteammatchhistory
  getteamplayers
  gettopmatches
  searchteams
]

  def initialize
    @creds = Rails.application.secrets.api['smite']
    time = utc_time
    response = Faraday.get [BASE_URL, 'createsessionJson', @creds['dev_id'], signature('createsession', time), time].join('/')
    @session_id = JSON(response.body)['session_id']
  end

  def self.ping
    response = Faraday.get [BASE_URL, 'pingJson'].join('/')
    return response.body
  end

  METHODS.each do |method|
    define_method(method.to_sym) do |*args|
      request(method, *args)
    end
  end


  private

  def request(method, *args)
    time = utc_time
    response = Faraday.get [BASE_URL, "#{method}Json", @creds['dev_id'], signature(method, time), @session_id, time, *args].join('/')
    JSON(response.body)
  rescue JSON::ParserError
    response.body # return a string
  end

  def signature(method, time)
    string = [@creds['dev_id'], method, @creds['auth_key'], time].join
    Digest::MD5.hexdigest(string)
  end

  def utc_time
    Time.now.utc.strftime('%Y%m%d%H%M%S')
  end

end