64 lines
2.2 KiB
Python
64 lines
2.2 KiB
Python
""" Gate.io exchange subclass """
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import logging
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from typing import Dict, List, Optional, Tuple
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from freqtrade.enums import MarginMode, TradingMode
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from freqtrade.exceptions import OperationalException
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from freqtrade.exchange import Exchange
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logger = logging.getLogger(__name__)
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class Gateio(Exchange):
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"""
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Gate.io exchange class. Contains adjustments needed for Freqtrade to work
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with this exchange.
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Please note that this exchange is not included in the list of exchanges
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officially supported by the Freqtrade development team. So some features
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may still not work as expected.
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"""
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_ft_has: Dict = {
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"ohlcv_candle_limit": 1000,
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"ohlcv_volume_currency": "quote",
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}
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_headers = {'X-Gate-Channel-Id': 'freqtrade'}
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_supported_trading_mode_margin_pairs: List[Tuple[TradingMode, MarginMode]] = [
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# TradingMode.SPOT always supported and not required in this list
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# (TradingMode.MARGIN, MarginMode.CROSS),
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# (TradingMode.FUTURES, MarginMode.CROSS),
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(TradingMode.FUTURES, MarginMode.ISOLATED)
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]
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def validate_ordertypes(self, order_types: Dict) -> None:
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super().validate_ordertypes(order_types)
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if any(v == 'market' for k, v in order_types.items()):
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raise OperationalException(
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f'Exchange {self.name} does not support market orders.')
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def get_maintenance_ratio_and_amt(
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self,
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pair: str,
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nominal_value: Optional[float] = 0.0,
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) -> Tuple[float, Optional[float]]:
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"""
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:return: The maintenance margin ratio and maintenance amount
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"""
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info = self.markets[pair]['info']
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return (float(info['maintenance_rate']), None)
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def get_max_leverage(self, pair: str, stake_amount: Optional[float]) -> float:
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"""
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Returns the maximum leverage that a pair can be traded at
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:param pair: The base/quote currency pair being traded
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:param nominal_value: The total value of the trade in quote currency (margin_mode + debt)
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"""
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market = self.markets[pair]
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if market['limits']['leverage']['max'] is not None:
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return market['limits']['leverage']['max']
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