read_main() — fastapi Function Reference

Architecture documentation for the read_main() function in main.py from the fastapi codebase.

Function python FastAPI Applications

Entity Profile

FastAPI→ Applications→ read_main() — fastapi Function Reference

Dependency Diagram

graph TD
  4dd14604_9436_5d74_9790_28ccf5ae0df1["read_main()"]
  cefe3d74_93b2_43cd_ee6d_9488366d4d0e["main.py"]
  4dd14604_9436_5d74_9790_28ccf5ae0df1 -->|defined in| cefe3d74_93b2_43cd_ee6d_9488366d4d0e
  style 4dd14604_9436_5d74_9790_28ccf5ae0df1 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

docs_src/app_testing/app_b_an_py310/main.py lines 23–28

async def read_main(item_id: str, x_token: Annotated[str, Header()]):
    if x_token != fake_secret_token:
        raise HTTPException(status_code=400, detail="Invalid X-Token header")
    if item_id not in fake_db:
        raise HTTPException(status_code=404, detail="Item not found")
    return fake_db[item_id]