Pydantic sayəsində standart Python tiplərindən istifadə edərək <abbr title="Gövdə: Body ">gövdə</abbr>ni müəyyən edək.

```Python hl_lines="4  9-12  25-27"
from typing import Union

from fastapi import FastAPI
from pydantic import BaseModel

app = FastAPI()


class Item(BaseModel):
    name: str
    price: float

                        <Array as="points">
                            <mxPoint x="245" y="710"/>
                        </Array>
                    </mxGeometry>
                </mxCell>
                <mxCell id="49" value="" style="rounded=0;whiteSpace=wrap;html=1;fontStyle=1;strokeWidth=4;fillColor=#fff2cc;strokeColor=#d6b656;" parent="1" vertex="1">
                    <mxGeometry x="510" y="400" width="310" height="320" as="geometry"/>

## Nâng cấp ví dụ

Bây giờ sửa tệp tin `main.py` để nhận body từ một request `PUT`.

Định nghĩa của body sử dụng kiểu dữ liệu chuẩn của Python, cảm ơn Pydantic.

```Python hl_lines="4  9-12  25-27"
from typing import Union

from fastapi import FastAPI
from pydantic import BaseModel

app = FastAPI()


class Item(BaseModel):
    name: str
    price: float

                            <mxPoint x="-40" y="290"/>
                        </Array>
                    </mxGeometry>
                </mxCell>
                <mxCell id="49" value="" style="rounded=0;whiteSpace=wrap;html=1;fontStyle=1;strokeWidth=4;fillColor=#fff2cc;strokeColor=#d6b656;" parent="1" vertex="1">
                    <mxGeometry x="510" y="400" width="310" height="320" as="geometry"/>

Ní báyìí ṣe àtúnṣe fáìlì `main.py` láti gba kókó èsì láti inú ìbéèrè `PUT`.

Ní báyìí, ṣe ìkéde kókó èsì API nínú kóòdù rẹ nipa lílo àwọn ìtọ́kasí àmì irúfẹ́ Python, ọpẹ́ pàtàkìsi sí Pydantic.

```Python hl_lines="4  9-12  25-27"
from typing import Union

from fastapi import FastAPI
from pydantic import BaseModel

app = FastAPI()


class Item(BaseModel):
    name: str
    price: float

                            <mxPoint x="-40" y="290"/>
                        </Array>
                    </mxGeometry>
                </mxCell>
                <mxCell id="49" value="" style="rounded=0;whiteSpace=wrap;html=1;fontStyle=1;strokeWidth=4;fillColor=#fff2cc;strokeColor=#d6b656;" parent="1" vertex="1">
                    <mxGeometry x="510" y="400" width="310" height="320" as="geometry"/>

                        <Array as="points">
                            <mxPoint x="245" y="710"/>
                        </Array>
                    </mxGeometry>
                </mxCell>
                <mxCell id="49" value="" style="rounded=0;whiteSpace=wrap;html=1;fontStyle=1;strokeWidth=4;fillColor=#fff2cc;strokeColor=#d6b656;" parent="1" vertex="1">
                    <mxGeometry x="510" y="400" width="310" height="320" as="geometry"/>

Şimdi `main.py` dosyasını, `PUT` isteğiyle birlikte bir gövde alacak şekilde değiştirelim.

<abbr title="Gövde: Body">Gövde</abbr>yi Pydantic sayesinde standart python tiplerini kullanarak tanımlayalım.

```Python hl_lines="4  9-12  25-27"
from typing import Union

from fastapi import FastAPI
from pydantic import BaseModel

app = FastAPI()


class Item(BaseModel):
    name: str
    price: float

## Приклад оновлення

Тепер модифікуйте файл `main.py`, щоб отримати вміст запиту `PUT`.

Оголошуйте вміст запиту за допомогою стандартних типів Python завдяки Pydantic.

```Python hl_lines="4  9-12  25-27"
from typing import Union

from fastapi import FastAPI
from pydantic import BaseModel

app = FastAPI()


class Item(BaseModel):
    name: str
    price: float

![ReDoc](https://fastapi.tiangolo.com/img/index/index-02-redoc-simple.png)

## 範例升級

現在繼續修改 `main.py` 檔案，來接收一個帶有 body 的 `PUT` 請求。

我們使用 Pydantic 來使用標準的 Python 型別聲明請求。

```Python hl_lines="4  9-12  25-27"
from typing import Union

from fastapi import FastAPI
from pydantic import BaseModel

app = FastAPI()


class Item(BaseModel):
    name: str
    price: float