Community reports 502 above ~100 symbols per request. Official docs have
no stated limit but 200 appears to be a ceiling. 100 is a safe conservative
default that avoids the 502 edge case with minimal performance impact
(500 tickers = 5 batches instead of 3).
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Free plan blocks SIP intraday data (403). IEX feed is free and real-time.
- _default_feed(): returns 'iex' for intraday timeframes, None for daily+
- get_bars() / get_multi_bars(): apply default feed automatically
- Callers can override with feed='sip' if on paid plan
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
- GET /alpaca/snapshot/{ticker} — 단일 티커 실시간 가격/bid-ask/OHLCV/등락률
- GET /alpaca/snapshot?tickers=A,B — 최대 100개 멀티 티커 일괄 조회
- AlpacaClient.get_snapshot / get_snapshots 메서드 추가
- AlpacaSnapshotResponse / AlpacaMultiSnapshotResponse 스키마 추가
- docs/PYTHON_CLIENT.md 사용 예시 업데이트
- 캐시 없음 — 매 요청마다 Alpaca API 직접 호출
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Separate Alpaca price data into dedicated AlpacaPriceData table to avoid
UniqueConstraint('ticker', 'date') conflicts with Yahoo Finance PriceData.
Add Redis caching (build_cache_key/get_cached_response/set_cached_response)
to 3 Alpaca endpoints and 2 FINRA query endpoints with appropriate TTLs.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
I Luk Kim