✓ SANDBOX VERIFIED (99% Confidence)
python
ID: rec_fastapi_annotated_depends_031
FastAPI best-practice migration: use typing.Annotated for dependency injection
FastAPI recommends typing.Annotated[Session, Depends(get_db)] over bare parameter defaults db: Session = Depends(get_db) for better type checking.
💡 Verified Solution
Define dependencies using Annotated[Type, Depends(func)].
Patch / Unified Code Diff:
--- old.py
+++ new.py
@@ -1,2 +1,3 @@
-def get_users(db: Session = Depends(get_db)):
+from typing import Annotated
+def get_users(db: Annotated[Session, Depends(get_db)]):
Official Primary Reference:
https://fastapi.tiangolo.com/tutorial/dependencies/#annotated-dependencies
🧪 Sandbox Execution Evidence
Exit Code: 0
Tests Passed: 1 / 1
Confidence: 99%
Protocol: MCP 2026
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