增加K线

backend/app/main.py

@@ -8,7 +8,8 @@ from fastapi.staticfiles import StaticFiles
 
 from .config import ROOT_DIR, settings
 from .funding_store import get_funding_bundle
-from .kline_store import get_daily_candles, sync_daily_klines
+from .kline_store import get_candles, get_daily_candles, sync_daily_klines, sync_klines
+from .chart_intervals import CHART_INTERVALS, limit_for_interval, validate_interval
 from .db import get_latest_snapshot, init_db, log_push, save_snapshot
 from .exceptions import BinanceRateLimitedError
 from .period_api import get_period_top30
@@ -144,9 +145,44 @@ async def api_refresh_daybefore():
     return get_latest_snapshot("daybefore") or {"message": "done"}
 
 
+@app.get("/api/chart/{symbol}")
+async def api_chart(
+    symbol: str,
+    interval: str = "1d",
+    limit: int | None = None,
+    refresh: bool = False,
+):
+    """合约 K 线：优先读本地 SQLite，过期再拉币安入库。"""
+    sym = symbol.upper().strip()
+    if not sym.endswith("USDT"):
+        raise HTTPException(400, "invalid symbol")
+    try:
+        iv = validate_interval(interval)
+    except ValueError as e:
+        raise HTTPException(400, str(e)) from e
+    default_limit = limit_for_interval(iv)
+    try:
+        candles, source = await get_candles(
+            sym, iv, limit or default_limit, force_refresh=refresh
+        )
+        return {
+            "symbol": sym,
+            "interval": iv,
+            "limit": len(candles),
+            "candles": candles,
+            "source": source,
+            "intervals": list(CHART_INTERVALS),
+        }
+    except BinanceRateLimitedError as e:
+        raise HTTPException(503, f"币安限流，请 {e.retry_after_sec} 秒后再试") from e
+    except Exception as e:
+        logger.error("chart %s %s failed: %s", sym, iv, e)
+        raise HTTPException(502, "K线获取失败") from e
+
+
 @app.get("/api/chart/{symbol}/daily")
 async def api_chart_daily(symbol: str, limit: int | None = None, refresh: bool = False):
-    """合约日 K 线：优先读本地 SQLite，过期再拉币安入库。"""
+    """合约日 K 线（兼容旧路径）。"""
     sym = symbol.upper().strip()
     if not sym.endswith("USDT"):
         raise HTTPException(400, "invalid symbol")
@@ -158,6 +194,7 @@ async def api_chart_daily(symbol: str, limit: int | None = None, refresh: bool =
             "limit": len(candles),
             "candles": candles,
             "source": source,
+            "intervals": list(CHART_INTERVALS),
         }
     except BinanceRateLimitedError as e:
         raise HTTPException(503, f"币安限流，请 {e.retry_after_sec} 秒后再试") from e
@@ -180,6 +217,23 @@ async def api_funding_history(symbol: str, limit: int | None = None, refresh: bo
         raise HTTPException(502, "资金费率获取失败") from e
 
 
+@app.post("/api/chart/{symbol}/refresh")
+async def api_chart_refresh(
+    symbol: str, interval: str = "1d", limit: int | None = None
+):
+    """强制从币安同步 K 线到本地库。"""
+    sym = symbol.upper().strip()
+    try:
+        iv = validate_interval(interval)
+    except ValueError as e:
+        raise HTTPException(400, str(e)) from e
+    try:
+        candles = await sync_klines(sym, iv, limit)
+        return {"symbol": sym, "interval": iv, "saved": len(candles), "source": "binance"}
+    except BinanceRateLimitedError as e:
+        raise HTTPException(503, f"币安限流，请 {e.retry_after_sec} 秒后再试") from e
+
+
 @app.post("/api/chart/{symbol}/daily/refresh")
 async def api_chart_daily_refresh(symbol: str, limit: int | None = None):
     """强制从币安同步日 K 到本地库。"""