```Python
def get_settings():
    return Settings()
```

nous créerions cet objet pour chaque requête, et nous lirions le fichier `.env` pour chaque requête. ⚠️

Mais comme nous utilisons le décorateur `@lru_cache` au-dessus, l'objet `Settings` sera créé une seule fois, la première fois qu'il est appelé. ✔️

{* ../../docs_src/settings/app03_an_py310/main.py hl[1,11] *}

# Path Operation Yapılandırması { #path-operation-configuration }

Onu yapılandırmak için *path operation decorator*’ınıza geçebileceğiniz çeşitli parametreler vardır.

/// warning | Uyarı

Bu parametrelerin *path operation function*’ınıza değil, doğrudan *path operation decorator*’ına verildiğine dikkat edin.

///

## Response Status Code { #response-status-code }

 * CharEscaper based on the generated array.
 *
 * @author Sven Mawson
 * @since 15.0
 */
@GwtCompatible
public final class CharEscaperBuilder {
  /**
   * Simple decorator that turns an array of replacement char[]s into a CharEscaper, this results in
   * a very fast escape method.
   */
  private static final class CharArrayDecorator extends CharEscaper {

{* ../../docs_src/response_model/tutorial001_01_py310.py ln[15:17] hl[16] *}

## HTML Response { #html-response }

**FastAPI**’den doğrudan HTML içeren bir response döndürmek için `HTMLResponse` kullanın.

* `HTMLResponse` import edin.
* *path operation decorator*’ınızın `response_class` parametresi olarak `HTMLResponse` verin.

# Configuración de Path Operation { #path-operation-configuration }

Hay varios parámetros que puedes pasar a tu *path operation decorator* para configurarlo.

/// warning | Advertencia

Ten en cuenta que estos parámetros se pasan directamente al *path operation decorator*, no a tu *path operation function*.

///

## Código de Estado del Response { #response-status-code }

{* ../../docs_src/response_model/tutorial001_01_py310.py ln[15:17] hl[16] *}

## HTML Response { #html-response }

To return a response with HTML directly from **FastAPI**, use `HTMLResponse`.

* Import `HTMLResponse`.
* Pass `HTMLResponse` as the parameter `response_class` of your *path operation decorator*.

///

## Créer un middleware { #create-a-middleware }

Pour créer un middleware, utilisez le décorateur `@app.middleware("http")` au-dessus d’une fonction.

La fonction de middleware reçoit :

* La `request`.
* Une fonction `call_next` qui recevra la `request` en paramètre.

* `DELETE`: para eliminar datos.

Así que, en OpenAPI, cada uno de los métodos HTTP se llama una "operation".

Vamos a llamarlas "**operaciones**" también.

#### Define un *path operation decorator* { #define-a-path-operation-decorator }

{* ../../docs_src/first_steps/tutorial001_py310.py hl[6] *}

El `@app.get("/")` le dice a **FastAPI** que la función justo debajo se encarga de manejar requests que vayan a:

* el path `/`

Bu gibi durumlarda, dönüş tipi yerine *path operation decorator* parametresi olan `response_model`’i kullanabilirsiniz.

`response_model` parametresini herhangi bir *path operation* içinde kullanabilirsiniz:

* `@app.get()`
* `@app.post()`
* `@app.put()`
* `@app.delete()`

{* ../../docs_src/response_model/tutorial001_01_py310.py ln[15:17] hl[16] *}

## Response HTML { #html-response }

Para devolver un response con HTML directamente desde **FastAPI**, usa `HTMLResponse`.

* Importa `HTMLResponse`.
* Pasa `HTMLResponse` como parámetro `response_class` de tu *path operation decorator*.