Ruby file to connect with Bittrex API

BittrexApi.rb

require 'rest-client'
require 'openssl'
require 'addressable/uri'

module Bittrex
  class << self
    attr_accessor :configuration
  end

  def self.setup
    @configuration ||= Configuration.new
    yield (@configuration)
  end

  class Configuration
    attr_accessor :key, :secret

    def initialize
      @key = ''
      @secret = ''
    end
  end

  def self.markets
    get_public 'getmarkets'
  end

  def self.currencies
    get_public 'getcurrencies'
  end

  def self.ticker currency_pair
    get_public 'getticker', market: currency_pair
  end

  def self.market_summaries
    get_public 'getmarketsummaries'
  end

  def self.market_summary currency_pair
    get_public 'getmarketsummary', market: currency_pair
  end

  def self.order_book currency_pair, type = 'both', depth = 10
    get_public 'getorderbook', market: currency_pair, type: type, depth: depth
  end

  def self.market_history currency_pair
    get_market 'getmarkethistory', market: currency_pair
  end

  def self.buy_limit currency_pair, quantity, rate
    get_market 'buylimit', market: currency_pair, quantity: quantity, rate: rate
  end

  def self.sell_limit currency_pair, quantity, rate
    get_market 'selllimit', market: currency_pair, quantity: quantity, rate: rate
  end

  def self.cancel uuid
    get_market 'cancel', uuid: uuid
  end

  def self.open_orders currency_pair = nil
    get_market 'getopenorders', market: currency_pair
  end

  def self.balances
    get_account 'getbalances'
  end

  def self.balance currency
    get_account 'getbalance', currency: currency
  end

  def self.deposit_address currency
    get_account 'getdepositaddress', currency: currency
  end

  def self.withdraw currency, quantity, address
    get_account 'withdraw', currency: currency, quantity: quantity,
      address: address
  end

  def self.order uuid
    get_account 'getorder', uuid: uuid
  end

  private
    def self.make_full_url method, command, params
      url = "https://bittrex.com/api/v1.1/#{method}/#{command}"
      query = params.map { |k,v| "#{k}=#{v}" }.join '&'
      "#{url}?#{query}"
    end

    def self.signature url
      OpenSSL::HMAC.hexdigest('sha512', configuration.secret.encode("ASCII"),
                              url.encode("ASCII"))
    end

    def self.get_public command, params = {}
      get 'public', command, params
    end

    def self.get_market command, params = {}
      get 'market', command, params
    end

    def self.get_account command, params = {}
      get 'account', command, params
    end

    def self.get method, command, params
      if method != 'public'
        params['apikey'] = configuration.key
        params['nonce'] = Time.now.to_i
      end
      full_url = make_full_url method, command, params
      if method == 'public'
        RestClient.get full_url
      else
        sig = signature full_url
        RestClient.get full_url, apisign: sig
      end
    end
end

You have to setup Bittrex with your api keys like this:

Bittrex.setup do |config|
  config.key = 'your-key'
  config.secret = 'yout-secret'
end