Files
stock_chart_site/backend/app/api/metrics.py
tkrmagid 41ee9d5bb0 feat(phase-5): FastAPI 엔드포인트 (검색/차트/예측/메트릭/뉴스)
- GET  /api/symbols/search?q=...&seed_only=  : trigram + prefix + ILIKE 합산 정렬
- GET  /api/symbols/{code}                    : 메타
- GET  /api/chart/{code}?days=N&include_*     : OHLCV + 일별 감성 + 외인기관거래대금
- POST /api/predict/{code}?horizons=1,3,5     : on-demand 앙상블 예측 + DB 적재
                                                (user_triggered=TRUE)
- GET  /api/predict/{code}/latest             : 최신 base_date 의 예측 묶음 + base_close
                                                (UI 가 차트 마지막 점에 이어 붙임)
- GET  /api/metrics/{code}?window_days=N      : 종목 단위 hit_rate / mae (model, horizon 별)
- GET  /api/metrics?window_days=N             : 전체 누적
- GET  /api/news/{code}?source=&limit=        : 최신순 뉴스/공시 목록 (감성 점수 포함)

main.py 에 6개 라우터 모두 include.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
2026-05-20 16:05:08 +09:00

102 lines
3.1 KiB
Python

"""모델 성능 메트릭 API."""
from __future__ import annotations
from datetime import date, timedelta
from fastapi import APIRouter, HTTPException, Query
from sqlalchemy import text
from app.db.connection import get_engine
router = APIRouter(prefix="/api/metrics", tags=["metrics"])
@router.get("/{code}")
def code_metrics(
code: str,
window_days: int = Query(default=30, ge=1, le=365),
) -> dict:
"""code 의 최근 window_days 윈도우 prediction_outcomes 집계."""
eng = get_engine()
end = date.today()
start = end - timedelta(days=window_days)
with eng.connect() as conn:
sym = conn.execute(
text("SELECT code, name FROM symbols WHERE code = :c"),
{"c": code},
).first()
if not sym:
raise HTTPException(status_code=404, detail=f"unknown code: {code}")
rows = conn.execute(
text(
"""
SELECT model, horizon,
COUNT(*) AS n,
AVG(CASE WHEN direction_hit THEN 1.0 ELSE 0.0 END) AS hit_rate,
AVG(abs_error) AS mae
FROM prediction_outcomes
WHERE code = :c AND resolved_at >= :s
GROUP BY model, horizon
ORDER BY model, horizon
"""
),
{"c": code, "s": start},
).all()
return {
"code": sym[0],
"name": sym[1],
"window_days": window_days,
"range": {"from": str(start), "to": str(end)},
"by_model_horizon": [
{
"model": r[0],
"horizon": int(r[1]),
"n": int(r[2]),
"hit_rate": float(r[3]) if r[3] is not None else None,
"mae": float(r[4]) if r[4] is not None else None,
}
for r in rows
],
}
@router.get("")
def overall_metrics(
window_days: int = Query(default=30, ge=1, le=365),
) -> dict:
"""전체 시드 종목 누적 메트릭."""
eng = get_engine()
end = date.today()
start = end - timedelta(days=window_days)
with eng.connect() as conn:
rows = conn.execute(
text(
"""
SELECT po.model, po.horizon,
COUNT(*) AS n,
AVG(CASE WHEN po.direction_hit THEN 1.0 ELSE 0.0 END) AS hit_rate,
AVG(po.abs_error) AS mae
FROM prediction_outcomes po
WHERE po.resolved_at >= :s
GROUP BY po.model, po.horizon
ORDER BY po.model, po.horizon
"""
),
{"s": start},
).all()
return {
"window_days": window_days,
"range": {"from": str(start), "to": str(end)},
"by_model_horizon": [
{
"model": r[0],
"horizon": int(r[1]),
"n": int(r[2]),
"hit_rate": float(r[3]) if r[3] is not None else None,
"mae": float(r[4]) if r[4] is not None else None,
}
for r in rows
],
}