179 lines
7.3 KiB
Python
179 lines
7.3 KiB
Python
""" FTX exchange subclass """
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import logging
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from typing import Any, Dict, Optional
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import ccxt
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from freqtrade.exceptions import (DDosProtection, InsufficientFundsError, InvalidOrderException,
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OperationalException, TemporaryError)
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from freqtrade.exchange import Exchange
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from freqtrade.exchange.common import API_FETCH_ORDER_RETRY_COUNT, retrier
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from freqtrade.misc import safe_value_fallback2
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logger = logging.getLogger(__name__)
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class Ftx(Exchange):
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_ft_has: Dict = {
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"stoploss_on_exchange": True,
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"ohlcv_candle_limit": 1500,
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}
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def market_is_tradable(self, market: Dict[str, Any]) -> bool:
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"""
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Check if the market symbol is tradable by Freqtrade.
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Default checks + check if pair is spot pair (no futures trading yet).
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"""
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parent_check = super().market_is_tradable(market)
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return (parent_check and
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market.get('spot', False) is True)
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def stoploss_adjust(self, stop_loss: float, order: Dict, side: str) -> bool:
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"""
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Verify stop_loss against stoploss-order value (limit or price)
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Returns True if adjustment is necessary.
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"""
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return order['type'] == 'stop' and (
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side == "sell" and stop_loss > float(order['price']) or
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side == "buy" and stop_loss < float(order['price'])
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)
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@retrier(retries=0)
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def stoploss(self, pair: str, amount: float,
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stop_price: float, order_types: Dict, side: str) -> Dict:
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"""
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Creates a stoploss order.
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depending on order_types.stoploss configuration, uses 'market' or limit order.
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Limit orders are defined by having orderPrice set, otherwise a market order is used.
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"""
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limit_price_pct = order_types.get('stoploss_on_exchange_limit_ratio', 0.99)
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limit_rate = stop_price * limit_price_pct
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ordertype = "stop"
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stop_price = self.price_to_precision(pair, stop_price)
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if self._config['dry_run']:
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dry_order = self.create_dry_run_order(
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pair, ordertype, side, amount, stop_price)
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return dry_order
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try:
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params = self._params.copy()
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if order_types.get('stoploss', 'market') == 'limit':
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# set orderPrice to place limit order, otherwise it's a market order
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params['orderPrice'] = limit_rate
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params['stopPrice'] = stop_price
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amount = self.amount_to_precision(pair, amount)
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order = self._api.create_order(symbol=pair, type=ordertype, side=side,
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amount=amount, params=params)
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self._log_exchange_response('create_stoploss_order', order)
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logger.info('stoploss order added for %s. '
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'stop price: %s.', pair, stop_price)
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return order
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except ccxt.InsufficientFunds as e:
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raise InsufficientFundsError(
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f'Insufficient funds to create {ordertype} {side} order on market {pair}. '
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f'Tried to create stoploss with amount {amount} at stoploss {stop_price}. '
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f'Message: {e}') from e
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except ccxt.InvalidOrder as e:
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raise InvalidOrderException(
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f'Could not create {ordertype} {side} order on market {pair}. '
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f'Tried to create stoploss with amount {amount} at stoploss {stop_price}. '
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f'Message: {e}') from e
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except ccxt.DDoSProtection as e:
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raise DDosProtection(e) from e
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except (ccxt.NetworkError, ccxt.ExchangeError) as e:
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raise TemporaryError(
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f'Could not place {side} order due to {e.__class__.__name__}. Message: {e}') from e
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except ccxt.BaseError as e:
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raise OperationalException(e) from e
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@retrier(retries=API_FETCH_ORDER_RETRY_COUNT)
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def fetch_stoploss_order(self, order_id: str, pair: str) -> Dict:
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if self._config['dry_run']:
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return self.fetch_dry_run_order(order_id)
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try:
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orders = self._api.fetch_orders(pair, None, params={'type': 'stop'})
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order = [order for order in orders if order['id'] == order_id]
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self._log_exchange_response('fetch_stoploss_order', order)
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if len(order) == 1:
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if order[0].get('status') == 'closed':
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# Trigger order was triggered ...
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real_order_id = order[0].get('info', {}).get('orderId')
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order1 = self._api.fetch_order(real_order_id, pair)
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self._log_exchange_response('fetch_stoploss_order1', order1)
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# Fake type to stop - as this was really a stop order.
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order1['id_stop'] = order1['id']
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order1['id'] = order_id
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order1['type'] = 'stop'
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order1['status_stop'] = 'triggered'
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return order1
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return order[0]
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else:
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raise InvalidOrderException(f"Could not get stoploss order for id {order_id}")
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except ccxt.InvalidOrder as e:
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raise InvalidOrderException(
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f'Tried to get an invalid order (id: {order_id}). Message: {e}') from e
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except ccxt.DDoSProtection as e:
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raise DDosProtection(e) from e
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except (ccxt.NetworkError, ccxt.ExchangeError) as e:
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raise TemporaryError(
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f'Could not get order due to {e.__class__.__name__}. Message: {e}') from e
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except ccxt.BaseError as e:
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raise OperationalException(e) from e
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@retrier
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def cancel_stoploss_order(self, order_id: str, pair: str) -> Dict:
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if self._config['dry_run']:
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return {}
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try:
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order = self._api.cancel_order(order_id, pair, params={'type': 'stop'})
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self._log_exchange_response('cancel_stoploss_order', order)
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return order
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except ccxt.InvalidOrder as e:
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raise InvalidOrderException(
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f'Could not cancel order. Message: {e}') from e
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except ccxt.DDoSProtection as e:
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raise DDosProtection(e) from e
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except (ccxt.NetworkError, ccxt.ExchangeError) as e:
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raise TemporaryError(
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f'Could not cancel order due to {e.__class__.__name__}. Message: {e}') from e
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except ccxt.BaseError as e:
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raise OperationalException(e) from e
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def get_order_id_conditional(self, order: Dict[str, Any]) -> str:
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if order['type'] == 'stop':
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return safe_value_fallback2(order, order, 'id_stop', 'id')
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return order['id']
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def _apply_leverage_to_stake_amount(self, stake_amount: float, leverage: float):
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# TODO-lev: implement
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return stake_amount
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def fill_leverage_brackets(self):
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"""
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FTX leverage is static across the account, and doesn't change from pair to pair,
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so _leverage_brackets doesn't need to be set
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"""
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return
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def get_max_leverage(self, pair: Optional[str], nominal_value: Optional[float]) -> float:
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"""
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Returns the maximum leverage that a pair can be traded at, which is always 20 on ftx
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:param pair: Here for super method, not used on FTX
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:nominal_value: Here for super method, not used on FTX
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"""
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return 20.0
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