Function upsert_item

docs_src/additional_status_codes/tutorial001_py310.py:10–23

(
    item_id: str,
    name: str | None = Body(default=None),
    size: int | None = Body(default=None),
)

@app.put("/items/{item_id}")
async def upsert_item(
    item_id: str,
    name: str | None = Body(default=None),
    size: int | None = Body(default=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)