添加日志记录和异常处理以增强错误管理

app/auth/metadata_dependencies.py

@@ -1,7 +1,9 @@
 from dataclasses import dataclass
 from uuid import UUID
 
+import logging
 from fastapi import Depends, HTTPException, status
+from sqlalchemy.exc import SQLAlchemyError
 from sqlalchemy.ext.asyncio import AsyncSession
 
 from app.auth.keycloak_dependencies import get_current_keycloak_sub
@@ -9,6 +11,8 @@ from app.core.config import settings
 from app.infra.db.metadata.database import get_metadata_session
 from app.infra.repositories.metadata_repository import MetadataRepository
 
+logger = logging.getLogger(__name__)
+
 
 async def get_metadata_repository(
     session: AsyncSession = Depends(get_metadata_session),
@@ -20,7 +24,17 @@ async def get_current_metadata_user(
     keycloak_sub: UUID = Depends(get_current_keycloak_sub),
     metadata_repo: MetadataRepository = Depends(get_metadata_repository),
 ):
-    user = await metadata_repo.get_user_by_keycloak_id(keycloak_sub)
+    try:
+        user = await metadata_repo.get_user_by_keycloak_id(keycloak_sub)
+    except SQLAlchemyError as exc:
+        logger.error(
+            "Metadata DB error while resolving current user",
+            exc_info=True,
+        )
+        raise HTTPException(
+            status_code=status.HTTP_503_SERVICE_UNAVAILABLE,
+            detail=f"Metadata database error: {exc}",
+        ) from exc
     if not user or not user.is_active:
         raise HTTPException(
             status_code=status.HTTP_403_FORBIDDEN, detail="Inactive user"