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Merge pull request #8386 from freqtrade/feature/price_to_precision_round

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price to precision rounding
This commit is contained in:
Matthias
2023-03-31 07:20:10 +02:00
committed by GitHub
parent 6dfb1a1d14 159090c0e7
commit 5e13b48648
13 changed files with 145 additions and 88 deletions
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31
freqtrade/exchange/exchange.py
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@@ -30,13 +30,14 @@ from freqtrade.exceptions import (DDosProtection, ExchangeError, InsufficientFun
RetryableOrderError, TemporaryError)
from freqtrade.exchange.common import (API_FETCH_ORDER_RETRY_COUNT, remove_credentials, retrier,
retrier_async)
from freqtrade.exchange.exchange_utils import (CcxtModuleType, amount_to_contract_precision,
amount_to_contracts, amount_to_precision,
contracts_to_amount, date_minus_candles,
is_exchange_known_ccxt, market_is_active,
price_to_precision, timeframe_to_minutes,
timeframe_to_msecs, timeframe_to_next_date,
timeframe_to_prev_date, timeframe_to_seconds)
from freqtrade.exchange.exchange_utils import (ROUND, ROUND_DOWN, ROUND_UP, CcxtModuleType,
amount_to_contract_precision, amount_to_contracts,
amount_to_precision, contracts_to_amount,
date_minus_candles, is_exchange_known_ccxt,
market_is_active, price_to_precision,
timeframe_to_minutes, timeframe_to_msecs,
timeframe_to_next_date, timeframe_to_prev_date,
timeframe_to_seconds)
from freqtrade.exchange.types import OHLCVResponse, OrderBook, Ticker, Tickers
from freqtrade.misc import (chunks, deep_merge_dicts, file_dump_json, file_load_json,
safe_value_fallback2)
@@ -734,12 +735,14 @@ class Exchange:
"""
return amount_to_precision(amount, self.get_precision_amount(pair), self.precisionMode)
def price_to_precision(self, pair: str, price: float) -> float:
def price_to_precision(self, pair: str, price: float, *, rounding_mode: int = ROUND) -> float:
"""
Returns the price rounded up to the precision the Exchange accepts.
Rounds up
Returns the price rounded to the precision the Exchange accepts.
The default price_rounding_mode in conf is ROUND.
For stoploss calculations, must use ROUND_UP for longs, and ROUND_DOWN for shorts.
"""
return price_to_precision(price, self.get_precision_price(pair), self.precisionMode)
return price_to_precision(price, self.get_precision_price(pair),
self.precisionMode, rounding_mode=rounding_mode)
def price_get_one_pip(self, pair: str, price: float) -> float:
"""
@@ -1185,12 +1188,12 @@ class Exchange:
user_order_type = order_types.get('stoploss', 'market')
ordertype, user_order_type = self._get_stop_order_type(user_order_type)
stop_price_norm = self.price_to_precision(pair, stop_price)
round_mode = ROUND_DOWN if side == 'buy' else ROUND_UP
stop_price_norm = self.price_to_precision(pair, stop_price, rounding_mode=round_mode)
limit_rate = None
if user_order_type == 'limit':
limit_rate = self._get_stop_limit_rate(stop_price, order_types, side)
limit_rate = self.price_to_precision(pair, limit_rate)
limit_rate = self.price_to_precision(pair, limit_rate, rounding_mode=round_mode)
if self._config['dry_run']:
dry_order = self.create_dry_run_order(