freqtrade_origin/freqtrade/exchange/binance.py

91 lines
3.5 KiB
Python
Raw Normal View History

2019-02-24 18:30:05 +00:00
""" Binance exchange subclass """
import logging
from typing import Dict
import ccxt
2020-09-28 17:39:41 +00:00
from freqtrade.exceptions import (DDosProtection, InsufficientFundsError, InvalidOrderException,
OperationalException, TemporaryError)
2019-02-24 18:30:05 +00:00
from freqtrade.exchange import Exchange
from freqtrade.exchange.common import retrier
2019-02-24 18:30:05 +00:00
2020-09-28 17:39:41 +00:00
2019-02-24 18:30:05 +00:00
logger = logging.getLogger(__name__)
class Binance(Exchange):
2019-02-24 19:01:20 +00:00
_ft_has: Dict = {
2019-02-24 18:30:05 +00:00
"stoploss_on_exchange": True,
"order_time_in_force": ['gtc', 'fok', 'ioc'],
2020-12-20 10:44:50 +00:00
"ohlcv_candle_limit": 1000,
2019-08-14 17:22:52 +00:00
"trades_pagination": "id",
"trades_pagination_arg": "fromId",
"l2_limit_range": [5, 10, 20, 50, 100, 500, 1000],
2019-02-24 18:30:05 +00:00
}
def stoploss_adjust(self, stop_loss: float, order: Dict) -> bool:
"""
Verify stop_loss against stoploss-order value (limit or price)
Returns True if adjustment is necessary.
"""
return order['type'] == 'stop_loss_limit' and stop_loss > float(order['info']['stopPrice'])
@retrier(retries=0)
2020-01-19 12:30:56 +00:00
def stoploss(self, pair: str, amount: float, stop_price: float, order_types: Dict) -> Dict:
"""
creates a stoploss limit order.
this stoploss-limit is binance-specific.
It may work with a limited number of other exchanges, but this has not been tested yet.
"""
# Limit price threshold: As limit price should always be below stop-price
2020-02-02 09:47:44 +00:00
limit_price_pct = order_types.get('stoploss_on_exchange_limit_ratio', 0.99)
rate = stop_price * limit_price_pct
ordertype = "stop_loss_limit"
stop_price = self.price_to_precision(pair, stop_price)
# Ensure rate is less than stop price
if stop_price <= rate:
raise OperationalException(
'In stoploss limit order, stop price should be more than limit price')
if self._config['dry_run']:
dry_order = self.dry_run_order(
pair, ordertype, "sell", amount, stop_price)
return dry_order
try:
params = self._params.copy()
params.update({'stopPrice': stop_price})
amount = self.amount_to_precision(pair, amount)
rate = self.price_to_precision(pair, rate)
order = self._api.create_order(symbol=pair, type=ordertype, side='sell',
2020-05-13 05:15:18 +00:00
amount=amount, price=rate, params=params)
logger.info('stoploss limit order added for %s. '
'stop price: %s. limit: %s', pair, stop_price, rate)
return order
except ccxt.InsufficientFunds as e:
raise InsufficientFundsError(
2020-06-13 21:35:58 +00:00
f'Insufficient funds to create {ordertype} sell order on market {pair}. '
2019-09-01 08:17:17 +00:00
f'Tried to sell amount {amount} at rate {rate}. '
f'Message: {e}') from e
except ccxt.InvalidOrder as e:
# Errors:
# `binance Order would trigger immediately.`
raise InvalidOrderException(
f'Could not create {ordertype} sell order on market {pair}. '
2019-09-01 08:17:17 +00:00
f'Tried to sell amount {amount} at rate {rate}. '
f'Message: {e}') from e
2020-06-28 09:17:06 +00:00
except ccxt.DDoSProtection as e:
raise DDosProtection(e) from e
except (ccxt.NetworkError, ccxt.ExchangeError) as e:
raise TemporaryError(
f'Could not place sell order due to {e.__class__.__name__}. Message: {e}') from e
except ccxt.BaseError as e:
raise OperationalException(e) from e