diff options
Diffstat (limited to 'services/data-collector/src/data_collector/binance_rest.py')
| -rw-r--r-- | services/data-collector/src/data_collector/binance_rest.py | 54 |
1 files changed, 0 insertions, 54 deletions
diff --git a/services/data-collector/src/data_collector/binance_rest.py b/services/data-collector/src/data_collector/binance_rest.py deleted file mode 100644 index eaf4e30..0000000 --- a/services/data-collector/src/data_collector/binance_rest.py +++ /dev/null @@ -1,54 +0,0 @@ -"""Binance REST API helpers for fetching historical candle data.""" - -from datetime import datetime, timezone -from decimal import Decimal - -from shared.models import Candle - - -def _normalize_symbol(symbol: str) -> str: - """Convert 'BTC/USDT' to 'BTCUSDT'.""" - return symbol.replace("/", "") - - -async def fetch_historical_candles( - exchange, - symbol: str, - timeframe: str, - since: int, - limit: int = 500, -) -> list[Candle]: - """Fetch historical OHLCV candles from the exchange and return Candle models. - - Args: - exchange: An async ccxt exchange instance. - symbol: Market symbol, e.g. 'BTC/USDT'. - timeframe: Candle timeframe, e.g. '1m'. - since: Start timestamp in milliseconds. - limit: Maximum number of candles to fetch. - - Returns: - A list of Candle model instances. - """ - rows = await exchange.fetch_ohlcv(symbol, timeframe, since=since, limit=limit) - - normalized = _normalize_symbol(symbol) - candles: list[Candle] = [] - - for row in rows: - ts_ms, o, h, low, c, v = row - open_time = datetime.fromtimestamp(ts_ms / 1000, tz=timezone.utc) - candles.append( - Candle( - symbol=normalized, - timeframe=timeframe, - open_time=open_time, - open=Decimal(str(o)), - high=Decimal(str(h)), - low=Decimal(str(low)), - close=Decimal(str(c)), - volume=Decimal(str(v)), - ) - ) - - return candles |
