///

## Múltiples parámetros del cuerpo { #multiple-body-parameters }

En el ejemplo anterior, las *path operations* esperarían un cuerpo JSON con los atributos de un `Item`, como:

```JSON
{
    "name": "Foo",
    "description": "The pretender",
    "price": 42.0,
    "tax": 3.2
}
```

Pero también puedes declarar múltiples parámetros del cuerpo, por ejemplo `item` y `user`:

///

## Multiple body parameters { #multiple-body-parameters }

In the previous example, the *path operations* would expect a JSON body with the attributes of an `Item`, like:

```JSON
{
    "name": "Foo",
    "description": "The pretender",
    "price": 42.0,
    "tax": 3.2
}
```

But you can also declare multiple body parameters, e.g. `item` and `user`:

# Body – Mehrere Parameter { #body-multiple-parameters }

Nun, da wir gesehen haben, wie `Path` und `Query` verwendet werden, schauen wir uns fortgeschrittenere Verwendungsmöglichkeiten von <abbr title="Anfragekörper">Requestbody</abbr>-Deklarationen an.

## `Path`-, `Query`- und Body-Parameter vermischen { #mix-path-query-and-body-parameters }

# Corpo - Múltiplos parâmetros { #body-multiple-parameters }

Agora que nós vimos como usar `Path` e `Query`, veremos usos mais avançados de declarações no corpo da requisição.

## Misture `Path`, `Query` e parâmetros de corpo { #mix-path-query-and-body-parameters }

Primeiro, é claro, você pode misturar `Path`, `Query` e declarações de parâmetro no corpo da requisição livremente e o **FastAPI** saberá o que fazer.

# Body - Множество параметров { #body-multiple-parameters }

Теперь, когда мы увидели, как использовать `Path` и `Query` параметры, давайте рассмотрим более продвинутые примеры объявления тела запроса.

## Объединение `Path`, `Query` и параметров тела запроса { #mix-path-query-and-body-parameters }

	ADDV16		$1, R4, R5	// ERROR "the constant must be a multiple of 65536."
	ADDV16		$65535, R4, R5	// ERROR "the constant must be a multiple of 65536."
	SC		R4, 1(R5)	// ERROR "offset must be a multiple of 4."
	SCV		R4, 1(R5)	// ERROR "offset must be a multiple of 4."
	LL		1(R5), R4	// ERROR "offset must be a multiple of 4."

read_query["/items/"]

query_extractor --> query_or_cookie_extractor --> read_query
```

## Using the same dependency multiple times { #using-the-same-dependency-multiple-times }

If one of your dependencies is declared multiple times for the same *path operation*, for example, multiple dependencies have a common sub-dependency, **FastAPI** will know to call that sub-dependency only once per request.

///

## Multiple Workers { #multiple-workers }

You can start multiple workers with the `--workers` command line option:

//// tab | `fastapi`

If you use the `fastapi` command:

<div class="termy">

```console

        ("/required?foo=bar", 200, {"foo": "bar"}),
        ("/required", 422, foo_is_missing),
        ("/required?foo=", 422, foo_is_short),
        ("/multiple?foo=bar", 200, {"foo": "bar"}),
        ("/multiple", 422, foo_is_missing),
        ("/multiple?foo=", 422, foo_is_short),
        ("/unrelated?foo=bar", 200, {"foo": "bar"}),
        ("/unrelated", 422, foo_is_missing),
    ],
)

   * called and that value is both inserted and returned.
   *
   * If multiple calls to this function are made concurrently with the same [type], multiple values
   * may be computed. But only one value will be inserted, and that inserted value will be returned
   * to all callers.
   *
   * If computing multiple values is problematic, use an appropriate concurrency mechanism in your