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fixed dash updates (wip)

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This commit is contained in:
Dobromir Popov
2025-05-24 12:10:27 +03:00
parent fb5350bb50
commit d7f8d1af69
4 changed files with 347 additions and 781 deletions
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30
core/data_provider.py
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@ -62,39 +62,39 @@ class DataProvider:
logger.info(f"DataProvider initialized for symbols: {self.symbols}")
logger.info(f"Timeframes: {self.timeframes}")
def get_historical_data(self, symbol: str, timeframe: str, limit: int = 1000,
refresh: bool = False) -> Optional[pd.DataFrame]:
def get_historical_data(self, symbol: str, timeframe: str, limit: int = 1000, refresh: bool = False) -> Optional[pd.DataFrame]:
"""Get historical OHLCV data for a symbol and timeframe"""
try:
# Check cache first
if not refresh and self.cache_enabled:
cached_data = self._load_from_cache(symbol, timeframe)
if cached_data is not None and len(cached_data) >= limit * 0.8:
logger.info(f"Using cached data for {symbol} {timeframe}")
return cached_data.tail(limit)
# If refresh=True, always fetch fresh data (skip cache for real-time updates)
if not refresh:
if self.cache_enabled:
cached_data = self._load_from_cache(symbol, timeframe)
if cached_data is not None and len(cached_data) >= limit * 0.8:
logger.info(f"Using cached data for {symbol} {timeframe}")
return cached_data.tail(limit)
# Fetch from API
logger.info(f"Fetching historical data for {symbol} {timeframe}")
df = self._fetch_from_binance(symbol, timeframe, limit)
if df is not None and not df.empty:
# Add technical indicators
df = self._add_technical_indicators(df)
# Cache the data
if self.cache_enabled:
self._save_to_cache(df, symbol, timeframe)
# Store in memory
if symbol not in self.historical_data:
self.historical_data[symbol] = {}
self.historical_data[symbol][timeframe] = df
return df
logger.warning(f"No data received for {symbol} {timeframe}")
return None
except Exception as e:
logger.error(f"Error fetching historical data for {symbol} {timeframe}: {e}")
return None