class Cryptoexchange::Exchanges::Ethfinex::Services::OrderBook

Public Class Methods

supports_individual_ticker_query?() click to toggle source
# File lib/cryptoexchange/exchanges/ethfinex/services/order_book.rb, line 6
def supports_individual_ticker_query?
  true
end

Public Instance Methods

adapt(output, market_pair) click to toggle source
# File lib/cryptoexchange/exchanges/ethfinex/services/order_book.rb, line 28
def adapt(output, market_pair)
  order_book = Cryptoexchange::Models::OrderBook.new
  timestamp = Time.now.to_i
  order_book.base      = market_pair.base
  order_book.target    = market_pair.target
  order_book.market    = Ethfinex::Market::NAME
  order_book.asks      = adapt_orders(output[1], timestamp)
  order_book.bids      = adapt_orders(output[0], timestamp)
  order_book.timestamp = timestamp
  order_book.payload   = output
  order_book
end
adapt_orders(orders, timestamp) click to toggle source
# File lib/cryptoexchange/exchanges/ethfinex/services/order_book.rb, line 41
def adapt_orders(orders, timestamp)
  orders.collect do |order_entry|
    Cryptoexchange::Models::Order.new(price: NumericHelper.to_d(order_entry[0]),
                                      amount: NumericHelper.to_d(order_entry[-1].abs),
                                      timestamp: timestamp)
  end

end
fetch(market_pair) click to toggle source
Calls superclass method Cryptoexchange::Services::Market#fetch
# File lib/cryptoexchange/exchanges/ethfinex/services/order_book.rb, line 10
def fetch(market_pair)
  pre_output = super(order_book_url(market_pair))
  output = split(pre_output)
  adapt(output, market_pair)
end
order_book_url(market_pair) click to toggle source
# File lib/cryptoexchange/exchanges/ethfinex/services/order_book.rb, line 16
def order_book_url(market_pair)
  "#{Cryptoexchange::Exchanges::Ethfinex::Market::API_URL}/v2/book/t#{market_pair.base}#{market_pair.target}/P0"
end
split(pre_output) click to toggle source
# File lib/cryptoexchange/exchanges/ethfinex/services/order_book.rb, line 20
def split(pre_output)
  output = [[], []] # output[0] = bids | output[1] = asks
  pre_output.map do |order|
    (order[-1].to_f > 0 ?  output[0].push(order) : output[1].push(order))
  end
  output
end