upsert_item() — fastapi Function Reference

Architecture documentation for the upsert_item() function in tutorial001_an_py39.py from the fastapi codebase.

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FastAPI→ Applications→ upsert_item() — fastapi Function Reference

Dependency Diagram

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  bed886d6_b05b_dce2_8ea5_14f4adbbdd0d["tutorial001_an_py39.py"]
  0a6457bb_5c97_47f8_87e9_0a1a7d88fcfb -->|defined in| bed886d6_b05b_dce2_8ea5_14f4adbbdd0d
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Source Code

docs_src/additional_status_codes/tutorial001_an_py39.py lines 12–25

async def upsert_item(
    item_id: str,
    name: Annotated[Union[str, None], Body()] = None,
    size: Annotated[Union[int, None], Body()] = None,
):
    if item_id in items:
        item = items[item_id]
        item["name"] = name
        item["size"] = size
        return item
    else:
        item = {"name": name, "size": size}
        items[item_id] = item
        return JSONResponse(status_code=status.HTTP_201_CREATED, content=item)