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update add_external_candle, fix breaking on ping error, handle empty dataframes

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Timothy Pogue
2022-11-27 13:11:43 -07:00
parent fce1e9d6d0
commit d2c8487ecf
2 changed files with 23 additions and 11 deletions
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14
freqtrade/data/dataprovider.py
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@@ -179,15 +179,19 @@ class DataProvider:
if producer_name not in self.__producer_pairs_df:
# We don't have data from this producer yet,
# so we can't append a candle
return (False, 0)
return (False, 999)
if pair_key not in self.__producer_pairs_df[producer_name]:
# We don't have data for this pair_key,
# so we can't append a candle
return (False, 0)
return (False, 999)
# CHECK FOR MISSING CANDLES
# return (False, int > 0)
# Calculate difference between last candle in local dataframe
# and first candle in incoming dataframe. Take difference and divide
# by timeframe to find out how many candles we still need. If 1
# then the incoming candle is the right candle. If more than 1,
# return (False, missing candles - 1)
existing_df, _ = self.__producer_pairs_df[producer_name][pair_key]
appended_df = self._append_candle_to_dataframe(existing_df, dataframe)
@@ -207,8 +211,8 @@ class DataProvider:
if existing.iloc[-1]['date'] != new.iloc[-1]['date']:
existing = concat([existing, new])
# Only keep the last 1000 candles in memory
existing = existing[-1000:] if len(existing) > 1000 else existing
# Only keep the last 1500 candles in memory
existing = existing[-1500:] if len(existing) > 1000 else existing
return existing