///

### Step 5: return the content { #step-5-return-the-content }

{* ../../docs_src/first_steps/tutorial001.py hl[8] *}

You can return a `dict`, `list`, singular values as `str`, `int`, etc.

You can also return Pydantic models (you'll see more about that later).

<img src="/img/tutorial/generate-clients/image02.png">

Você também obterá preenchimento automático para o corpo a ser enviado:

<img src="/img/tutorial/generate-clients/image03.png">

/// tip | Dica

Observe o preenchimento automático para `name` e `price`, que foi definido no aplicativo FastAPI, no modelo `Item`.

///

Você terá erros em linha para os dados que você envia:

You can return it directly.

It accepts the following parameters:

* `content` - A `str` or `bytes`.
* `status_code` - An `int` HTTP status code.
* `headers` - A `dict` of strings.
* `media_type` - A `str` giving the media type. E.g. `"text/html"`.

    String ONLINE_HELP_NAME_DICT_SYNONYM = "online.help.name.dict.synonym";

    /** The key of the configuration. e.g. dict */
    String ONLINE_HELP_NAME_DICT = "online.help.name.dict";

    /** The key of the configuration. e.g. kuromoji */
    String ONLINE_HELP_NAME_DICT_KUROMOJI = "online.help.name.dict.kuromoji";

    /** The key of the configuration. e.g. protwords */

///

#### Retourner des *membres d'énumération*

Vous pouvez retourner des *membres d'énumération* dans vos *fonctions de chemin*, même imbriquée dans un JSON (e.g. un `dict`).

Ils seront convertis vers leurs valeurs correspondantes (chaînes de caractères ici) avant d'être transmis au client :

{* ../../docs_src/path_params/tutorial005.py hl[18,21,23] *}

```JSON
{
  "detail": "Item not found"
}
```

/// tip

When raising an `HTTPException`, you can pass any value that can be converted to JSON as the parameter `detail`, not only `str`.

You could pass a `dict`, a `list`, etc.

They are handled automatically by **FastAPI** and converted to JSON.

///

## Add custom headers { #add-custom-headers }

### `startup` 이벤트

애플리케이션이 시작되기 전에 실행되어야 하는 함수를 추가하려면, `"startup"` 이벤트로 선언합니다:

{* ../../docs_src/events/tutorial001.py hl[8] *}

이 경우, `startup` 이벤트 핸들러 함수는 "database"라는 항목(단지 `dict`)을 일부 값으로 초기화합니다.

여러 개의 이벤트 핸들러 함수를 추가할 수 있습니다.

애플리케이션은 모든 `startup` 이벤트 핸들러가 완료될 때까지 요청을 받기 시작하지 않습니다.

### `shutdown` 이벤트

애플리케이션이 종료될 때 실행되어야 하는 함수를 추가하려면, `"shutdown"` 이벤트로 선언합니다:

```TOML hl_lines="3"
[entryPoints]
  [entryPoints.http]
    address = ":9999"

[providers]
  [providers.file]
    filename = "routes.toml"
```

Esto le dice a Traefik que escuche en el puerto 9999 y que use otro archivo `routes.toml`.

/// tip | Consejo

4. Instalar las dependencias de los paquetes en el archivo de requisitos.

    La opción `--no-cache-dir` le dice a `pip` que no guarde los paquetes descargados localmente, ya que eso solo sería si `pip` fuese a ejecutarse de nuevo para instalar los mismos paquetes, pero ese no es el caso al trabajar con contenedores.

    /// note | Nota

import org.codelibs.fess.app.web.admin.dataconfig.AdminDataconfigAction;
import org.codelibs.fess.app.web.admin.design.AdminDesignAction;
import org.codelibs.fess.app.web.admin.dict.AdminDictAction;
import org.codelibs.fess.app.web.admin.duplicatehost.AdminDuplicatehostAction;
import org.codelibs.fess.app.web.admin.elevateword.AdminElevatewordAction;