Por ejemplo, si declaras un parámetro de tipo `Hero`, será leído desde el **JSON body**.

De la misma manera, puedes declararlo como el **tipo de retorno** de la función, y luego la forma de los datos aparecerá en la interfaz automática de documentación de la API.

	}
	testValidHeader(&h, t)
}

// Issue 4393. It is valid to have an extra data header
// which contains no body.
func TestZeroLengthHeader(t *testing.T) {
	h := FileHeader{
		Name:   "extadata.txt",
		Method: Deflate,
		Extra: []byte{
			85, 84, 5, 0, 3, 154, 144, 195, 77, // tag 21589 size 5

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

## Örneği Güncelleyelim

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

		Locale string `gorm:"primary_key"`
		Value  string
	}

	type Blog struct {
		ID         uint   `gorm:"primary_key"`
		Locale     string `gorm:"primary_key"`
		Subject    string
		Body       string
		Tags       []Tag `gorm:"many2many:blog_tags;"`
		SharedTags []Tag `gorm:"many2many:shared_blog_tags;ForeignKey:id;References:id"`

type IncompleteBody GenericError

// Error returns string an error formatted as the given text.
func (e IncompleteBody) Error() string {
	return e.Bucket + "/" + e.Object + " has incomplete body"
}

// InvalidRange - invalid range typed error.
type InvalidRange struct {
	OffsetBegin  int64
	OffsetEnd    int64
	ResourceSize int64
}

func (e InvalidRange) Error() string {

	}
	req.Header.Set("Content-Type", "application/json")

	clnt := http.Client{Transport: getRemoteInstanceTransport()}
	resp, err := clnt.Do(req)
	if err != nil {
		return err
	}

	xhttp.DrainBody(resp.Body)
	if resp.StatusCode != http.StatusOK {
		return errors.New(resp.Status)
	}

	return nil
}

// Notify notifies notification endpoint if configured regarding job failure or success.

for executing the loop body once.
After each successive loop iteration, <code>yield</code> returns true
and may be called again to continue the loop.
As long as the loop body does not terminate, the "range" clause will continue
to generate iteration values this way for each <code>yield</code> call until
<code>f</code> returns.
If the loop body terminates (such as by a <code>break</code> statement),

	fmtNum(ustar.devMinor(), hdr.Devminor)

	return &tw.blk
}

// writeRawFile writes a minimal file with the given name and flag type.
// It uses format to encode the header format and will write data as the body.
// It uses default values for all of the other fields (as BSD and GNU tar does).
func (tw *Writer) writeRawFile(name, data string, flag byte, format Format) error {
	tw.blk.reset()

	// Best effort for the filename.

channel.queue_bind(exchange='bucketevents',
                   queue=queue_name)

print(' [*] Waiting for logs. To exit press CTRL+C')

def callback(ch, method, properties, body):
    print(" [x] %r" % body)

channel.basic_consume(callback,
                      queue=queue_name,
                      no_ack=False)

channel.start_consuming()
```

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

## 예제 심화

이제 `PUT` 요청에 있는 본문(Body)을 받기 위해 `main.py`를 수정해봅시다.

Pydantic을 이용해 파이썬 표준 타입으로 본문을 선언합니다.

```Python hl_lines="4  9 10 11 12  25 26 27"
from typing import Union

from fastapi import FastAPI
from pydantic import BaseModel