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Implement price_to_precision logic for stoploss

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Matthias
2023-03-26 10:37:18 +02:00
parent 02078456fc
commit d0d0cbe1d1
6 changed files with 43 additions and 34 deletions
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10
freqtrade/exchange/exchange_utils.py
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@@ -224,19 +224,21 @@ def price_to_precision(
price: float,
price_precision: Optional[float],
precisionMode: Optional[int],
rounding_mode: int = ROUND_UP,
rounding_mode: int = ROUND,
) -> float:
"""
Returns the price rounded up to the precision the Exchange accepts.
Returns the price rounded to the precision the Exchange accepts.
Partial Re-implementation of ccxt internal method decimal_to_precision(),
which does not support rounding up
which does not support rounding up.
For stoploss calculations, must use ROUND_UP for longs, and ROUND_DOWN for shorts.
TODO: If ccxt supports ROUND_UP for decimal_to_precision(), we could remove this and
align with amount_to_precision().
:param price: price to convert
:param price_precision: price precision to use. Used from markets[pair]['precision']['price']
:param precisionMode: precision mode to use. Should be used from precisionMode
one of ccxt's DECIMAL_PLACES, SIGNIFICANT_DIGITS, or TICK_SIZE
:param rounding_mode: rounding mode to use. Defaults to ROUND_UP
:param rounding_mode: rounding mode to use. Defaults to ROUND
:return: price rounded up to the precision the Exchange accepts
"""
if price_precision is not None and precisionMode is not None: