fastapi

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from fastapi import FastAPI
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from pydantic import BaseModel
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app = FastAPI()
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class Item(BaseModel):
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    name: str
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    description: str | None = None
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    price: float
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    tax: float | None = None
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    class Config:
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        schema_extra = {
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            "examples": [
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                {
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                    "name": "Foo",
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                    "description": "A very nice Item",
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                    "price": 35.4,
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                    "tax": 3.2,
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                }
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            ]
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        }
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@app.put("/items/{item_id}")
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async def update_item(item_id: int, item: Item):
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    results = {"item_id": item_id, "item": item}
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    return results
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