* tested (adjective): протестированный
* middleware: middleware (don't translate, but add `промежуточный слой` if clarification is needed)
* path operation: операция пути (optionally clarify as `обработчик пути`)
* path operation function: функция-обработчик пути (or `функция обработки пути`)
* proprietary: проприетарный

8. Nota que esta *path operation function* usa `def` regular en lugar de `async def`.

    Como siempre, en FastAPI puedes combinar `def` y `async def` según sea necesario.

    Si necesitas un repaso sobre cuándo usar cuál, revisa la sección _"¿Con prisa?"_ en la documentación sobre [`async` y `await`](../async.md#in-a-hurry){.internal-link target=_blank}.

8. Notice that this *path operation function* uses regular `def` instead of `async def`.

    As always, in FastAPI you can combine `def` and `async def` as needed.

    If you need a refresher about when to use which, check out the section _"In a hurry?"_ in the docs about [`async` and `await`](../async.md#in-a-hurry){.internal-link target=_blank}.

///

### Usar tus etiquetas { #use-your-tags }

Usa el parámetro `tags` con tus *path operations* (y `APIRouter`s) para asignarlas a diferentes etiquetas:

{* ../../docs_src/metadata/tutorial004_py39.py hl[21,26] *}

/// info | Información

Lee más sobre etiquetas en [Configuración de Path Operation](path-operation-configuration.md#tags){.internal-link target=_blank}.

///

# `Request` class

You can declare a parameter in a *path operation function* or dependency to be of type `Request` and then you can access the raw request object directly, without any validation, etc.

You can import it directly from `fastapi`:

```python
from fastapi import Request
```

/// tip

│   └── test_main.py
```

Nehmen wir an, dass die Datei `main.py` mit Ihrer **FastAPI**-Anwendung jetzt einige andere **Pfadoperationen** hat.

Sie verfügt über eine `GET`-Operation, die einen Fehler zurückgeben könnte.

Sie verfügt über eine `POST`-Operation, die mehrere Fehler zurückgeben könnte.

Beide *Pfadoperationen* erfordern einen `X-Token`-Header.

{* ../../docs_src/app_testing/app_b_an_py310/main.py *}

      return super.writeReplace();
    }
  }

  /**
   * Guaranteed to throw an exception and leave the list unmodified.
   *
   * @throws UnsupportedOperationException always
   * @deprecated Unsupported operation.
   */
  @CanIgnoreReturnValue
  @Deprecated
  @Override
  @DoNotCall("Always throws UnsupportedOperationException")
  public final boolean addAll(int index, Collection<? extends E> newElements) {

@GwtIncompatible
public final class ConcurrentHashMultiset<E> extends AbstractMultiset<E> implements Serializable {

  /*
   * The ConcurrentHashMultiset's atomic operations are implemented primarily in terms of
   * AtomicInteger's atomic operations, with some help from ConcurrentMap's atomic operations on
   * creation and removal (including automatic removal of zeroes). If the modification of an

    - tutorial/handling-errors.md
    - tutorial/path-operation-configuration.md
    - tutorial/encoder.md
    - tutorial/body-updates.md
    - Dependencies:
      - tutorial/dependencies/index.md
      - tutorial/dependencies/classes-as-dependencies.md
      - tutorial/dependencies/sub-dependencies.md
      - tutorial/dependencies/dependencies-in-path-operation-decorators.md
      - tutorial/dependencies/global-dependencies.md

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

## まとめ

リクエストが単一のボディしか持てない場合でも、*path operation関数*に複数のボディパラメータを追加することができます。

しかし、**FastAPI** はそれを処理し、関数内の正しいデータを与え、*path operation*内の正しいスキーマを検証し、文書化します。

また、ボディの一部として受け取る単数値を宣言することもできます。