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refactor: provide a non-failing check_candle_support method

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Matthias
2025-12-08 17:01:36 +01:00
parent 80d5b6e24c
commit 96849fcafe
1 changed files with 17 additions and 9 deletions
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26
freqtrade/exchange/exchange.py
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@@ -2963,17 +2963,15 @@ class Exchange:
data = [[x["timestamp"], x["fundingRate"], 0, 0, 0, 0] for x in data]
return data
def verify_candle_type_support(self, candle_type: CandleType) -> None:
def check_candle_type_support(self, candle_type: CandleType) -> bool:
"""
Verify that the exchange supports the given candle type.
Check that the exchange supports the given candle type.
:param candle_type: CandleType to verify
:raises OperationalException: if the candle type is not supported
:return: True if supported, False otherwise
"""
if candle_type == CandleType.FUNDING_RATE:
if not self.exchange_has("fetchFundingRateHistory"):
raise OperationalException(
f"Exchange {self._api.name} does not support fetching funding rate history."
)
return False
elif candle_type not in (CandleType.SPOT, CandleType.FUTURES):
mapping = {
CandleType.MARK: "fetchMarkOHLCV",
@@ -2983,9 +2981,19 @@ class Exchange:
}
_method = mapping.get(candle_type, "fetchOHLCV")
if not self.exchange_has(_method):
raise OperationalException(
f"Exchange {self._api.name} does not support fetching {candle_type} candles."
)
return False
return True
def verify_candle_type_support(self, candle_type: CandleType) -> None:
"""
Verify that the exchange supports the given candle type.
:param candle_type: CandleType to verify
:raises OperationalException: if the candle type is not supported
"""
if not self.check_candle_type_support(candle_type):
raise OperationalException(
f"Exchange {self._api.name} does not support fetching {candle_type} candles."
)
# fetch Trade data stuff