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app/routers/sr_levels.py

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+"""S/R Levels router — support/resistance detection endpoints."""
+
+from fastapi import APIRouter, Depends, Query
+from sqlalchemy.ext.asyncio import AsyncSession
+
+from app.dependencies import get_db, require_access
+from app.schemas.common import APIEnvelope
+from app.schemas.sr_level import SRLevelResponse, SRLevelResult
+from app.services.sr_service import get_sr_levels
+
+router = APIRouter(tags=["sr-levels"])
+
+
+@router.get("/sr-levels/{symbol}", response_model=APIEnvelope)
+async def read_sr_levels(
+    symbol: str,
+    tolerance: float = Query(0.005, ge=0, le=0.1, description="Merge tolerance (default 0.5%)"),
+    _user=Depends(require_access),
+    db: AsyncSession = Depends(get_db),
+) -> APIEnvelope:
+    """Get support/resistance levels for a symbol, sorted by strength descending."""
+    levels = await get_sr_levels(db, symbol, tolerance)
+    data = SRLevelResponse(
+        symbol=symbol.upper(),
+        levels=[
+            SRLevelResult(
+                id=lvl.id,
+                price_level=lvl.price_level,
+                type=lvl.type,
+                strength=lvl.strength,
+                detection_method=lvl.detection_method,
+                created_at=lvl.created_at,
+            )
+            for lvl in levels
+        ],
+        count=len(levels),
+    )
+    return APIEnvelope(status="success", data=data.model_dump())