Class: BitfinexApiWrapper

Inherits:
Object
  • Object
show all
Defined in:
lib/bitex_bot/models/bitfinex_api_wrapper.rb

Class Method Summary collapse

Class Method Details

.amount_and_quantity(order_id, transactions) ⇒ Object 



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# File 'lib/bitex_bot/models/bitfinex_api_wrapper.rb', line 88

def self.amount_and_quantity(order_id, transactions)
  with_retry "find order #{order_id}" do
    order = Bitfinex::Client.new.order_status(order_id)
    [order['avg_execution_price'].to_d * order['executed_amount'].to_d, order['executed_amount'].to_d]
  end
end

.balance ⇒ Object 



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# File 'lib/bitex_bot/models/bitfinex_api_wrapper.rb', line 58

def self.balance
  with_retry 'balance' do
    balances = Bitfinex::Client.new.balances(type: 'exchange')
    sleep 1 # Sleep to avoid sending two consecutive requests to bitfinex.
    fee = Bitfinex::Client.new..first['taker_fees']
    btc = balances.find{|b| b['currency'] == 'btc' } || {}
    usd = balances.find{|b| b['currency'] == 'usd' } || {}
    { "btc_balance" => btc['amount'].to_d,
      "btc_reserved" => btc['amount'].to_d - btc['available'].to_d,
      "btc_available" => btc['available'].to_d,
      "usd_balance" => usd['amount'].to_d,
      "usd_reserved" => usd['amount'].to_d - usd['available'].to_d,
      "usd_available" => usd['available'].to_d,
      "fee" => fee.to_d
    }
  end
end

.order_book ⇒ Object 



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# File 'lib/bitex_bot/models/bitfinex_api_wrapper.rb', line 50

def self.order_book
  with_retry 'order_book' do
    book = Bitfinex::Client.new.orderbook
    { 'bids' => book['bids'].collect{|b| [b['price'], b['amount']] },
      'asks' => book['asks'].collect{|a| [a['price'], a['amount']] } }
  end
end

.orders ⇒ Object 



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# File 'lib/bitex_bot/models/bitfinex_api_wrapper.rb', line 76

def self.orders
  with_retry 'orders' do
    Bitfinex::Client.new.orders.collect{|o| BitfinexOrder.new(o) }
  end
end

.place_order(type, price, quantity) ⇒ Object 



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# File 'lib/bitex_bot/models/bitfinex_api_wrapper.rb', line 95

def self.place_order(type, price, quantity)
  with_retry "place order #{type} #{price} #{quantity}" do
    order_data = Bitfinex::Client.new
      .new_order('btcusd', quantity.round(4), 'exchange limit', type.to_s, price.round(2))
    BitfinexOrder.new(order_data)
  end
end

.setup(settings) ⇒ Object 



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# File 'lib/bitex_bot/models/bitfinex_api_wrapper.rb', line 19

def self.setup(settings)
  Bitfinex::Client.configure do |conf|
    conf.api_key = settings.bitfinex.api_key
    conf.secret = settings.bitfinex.api_secret 
  end
end

.transactions ⇒ Object 



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# File 'lib/bitex_bot/models/bitfinex_api_wrapper.rb', line 37

def self.transactions
  with_retry 'transactions' do
    Bitfinex::Client.new.trades.collect do |t|
      Hashie::Mash.new({
        tid: t['tid'].to_i,
        price: t['price'],
        amount: t['amount'],
        date: t['timestamp']
      })
    end
  end
end

.user_transactions ⇒ Object

We don’t need to fetch the list of transactions for bitfinex



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# File 'lib/bitex_bot/models/bitfinex_api_wrapper.rb', line 84

def self.user_transactions
  []
end

.with_retry(action, &block) ⇒ Object 



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# File 'lib/bitex_bot/models/bitfinex_api_wrapper.rb', line 26

def self.with_retry(action, &block)
  begin
    block.call
  rescue StandardError, Bitfinex::ClientError => e
    raise e if BitexBot::Robot.test_mode
    BitexBot::Robot.logger.info("Bitfinex #{action} failed. Retrying in 5 seconds.")
    sleep 5
    retry
  end
end