Class: Cryptoexchange::Exchanges::Bitfinex::Services::MarketStream

Inherits:
Services::MarketStream show all
Defined in:
lib/cryptoexchange/exchanges/bitfinex/services/market_stream.rb

Instance Method Summary collapse

Instance Method Details

#parse_message(message, market_pair) ⇒ Object 



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# File 'lib/cryptoexchange/exchanges/bitfinex/services/market_stream.rb', line 21

def parse_message(message, market_pair)
  # [67452,6614.9,36.37426215,6615,71.7470363,42.2,0.0064,6614.9,9981.07371415,6741.4366438,6570]
  #
  # CHANNEL_ID	      integer	Channel ID
  # BID               float Price of last highest bid
  # BID_SIZE          float Size of the last highest bid
  # ASK               float Price of last lowest ask
  # ASK_SIZE          float Size of the last lowest ask
  # DAILY_CHANGE      float Amount that the last price has changed since yesterday
  # DAILY_CHANGE_PERC float Amount that the price has changed expressed in percentage terms
  # LAST_PRICE        float Price of the last trade.
  # VOLUME            float Daily volume
  # HIGH              float Daily high
  # LOW               float Daily low
  ticker           = Cryptoexchange::Models::Ticker.new
  ticker.base      = market_pair.base
  ticker.target    = market_pair.target
  ticker.market    = Bitfinex::Market::NAME
  ticker.ask       = NumericHelper.to_d(message[3])
  ticker.bid       = NumericHelper.to_d(message[1])
  ticker.last      = NumericHelper.to_d(message[7])
  ticker.high      = NumericHelper.to_d(message[9])
  ticker.low       = NumericHelper.to_d(message[10])
  ticker.volume    = NumericHelper.to_d(message[6])
  ticker.timestamp = Time.now.to_i
  ticker.payload   = message
  ticker
end

#subscribe_event(market_pair) ⇒ Object 



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# File 'lib/cryptoexchange/exchanges/bitfinex/services/market_stream.rb', line 9

def subscribe_event(market_pair)
  {
    event:   "subscribe",
    channel: "ticker",
    pair:    "#{market_pair.base}#{market_pair.target}"
  }.to_json
end

#url ⇒ Object 



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# File 'lib/cryptoexchange/exchanges/bitfinex/services/market_stream.rb', line 5

def url
  Cryptoexchange::Exchanges::Bitfinex::Market::WS_URL
end

#valid_message?(message) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/cryptoexchange/exchanges/bitfinex/services/market_stream.rb', line 17

def valid_message?(message)
  message.is_a?(Array) && message.length == 11
end