添加日志记录和异常处理以增强错误管理

app/api/v1/endpoints/meta.py

@@ -1,6 +1,8 @@
+import logging
 from fastapi import APIRouter, Depends, HTTPException, status
 from psycopg import AsyncConnection
 from sqlalchemy import text
+from sqlalchemy.exc import SQLAlchemyError
 from sqlalchemy.ext.asyncio import AsyncSession
 
 from app.auth.project_dependencies import (
@@ -20,6 +22,7 @@ from app.domain.schemas.metadata import (
 from app.infra.repositories.metadata_repository import MetadataRepository
 
 router = APIRouter()
+logger = logging.getLogger(__name__)
 
 
 @router.get("/meta/project", response_model=ProjectMetaResponse)
@@ -61,7 +64,18 @@ async def list_user_projects(
     current_user=Depends(get_current_metadata_user),
     metadata_repo: MetadataRepository = Depends(get_metadata_repository),
 ):
-    projects = await metadata_repo.list_projects_for_user(current_user.id)
+    try:
+        projects = await metadata_repo.list_projects_for_user(current_user.id)
+    except SQLAlchemyError as exc:
+        logger.error(
+            "Metadata DB error while listing projects for user %s",
+            current_user.id,
+            exc_info=True,
+        )
+        raise HTTPException(
+            status_code=status.HTTP_503_SERVICE_UNAVAILABLE,
+            detail=f"Metadata database error: {exc}",
+        ) from exc
     return [
         ProjectSummaryResponse(
             project_id=project.project_id,