Si deseas leer más sobre estas codificaciones y campos de formularios, dirígete a la <a href="https://developer.mozilla.org/en-US/docs/Web/HTTP/Methods/POST" class="external-link" target="_blank"><abbr title="Mozilla Developer Network">MDN</abbr> web docs para <code>POST</code></a>.

///

/// warning | Advertencia

# Body - Updates { #body-updates }

## Update replacing with `PUT` { #update-replacing-with-put }

To update an item you can use the <a href="https://developer.mozilla.org/en-US/docs/Web/HTTP/Methods/PUT" class="external-link" target="_blank">HTTP `PUT`</a> operation.

You can use the `jsonable_encoder` to convert the input data to data that can be stored as JSON (e.g. with a NoSQL database). For example, converting `datetime` to `str`.

/// tip | Consejo

Para saber más sobre cada código de estado y qué código es para qué, revisa la <a href="https://developer.mozilla.org/en-US/docs/Web/HTTP/Status" class="external-link" target="_blank">documentación de <abbr title="Mozilla Developer Network">MDN</abbr> sobre códigos de estado HTTP</a>.

///

## Atajo para recordar los nombres

Veamos de nuevo el ejemplo anterior:

/// note | Technical Details

You could also use `from starlette import status`.

**FastAPI** provides the same `starlette.status` as `fastapi.status` just as a convenience for you, the developer. But it comes directly from Starlette.

///

## Tags { #tags }

You can add tags to your *path operation*, pass the parameter `tags` with a `list` of `str` (commonly just one `str`):

///

## Headers Personalizados

Ten en cuenta que los headers propietarios personalizados se pueden agregar <a href="https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers" class="external-link" target="_blank">usando el prefijo 'X-'</a>.

# WebSockets { #websockets }

You can use <a href="https://developer.mozilla.org/en-US/docs/Web/API/WebSockets_API" class="external-link" target="_blank">WebSockets</a> with **FastAPI**.

## Install `WebSockets` { #install-websockets }

Make sure you create a [virtual environment](../virtual-environments.md){.internal-link target=_blank}, activate it, and install `websockets`:

<div class="termy">

```console
$ pip install websockets

---> 100%

# Cuerpo - Actualizaciones

## Actualización reemplazando con `PUT`

Para actualizar un ítem puedes utilizar la operación de <a href="https://developer.mozilla.org/en-US/docs/Web/HTTP/Methods/PUT" class="external-link" target="_blank">HTTP `PUT`</a>.

Puedes usar el `jsonable_encoder` para convertir los datos de entrada en datos que se puedan almacenar como JSON (por ejemplo, con una base de datos NoSQL). Por ejemplo, convirtiendo `datetime` a `str`.

# Body – Aktualisierungen

## Ersetzendes Aktualisieren mit `PUT`

Um einen Artikel zu aktualisieren, können Sie die <a href="https://developer.mozilla.org/en-US/docs/Web/HTTP/Methods/PUT" class="external-link" target="_blank">HTTP `PUT`</a> Operation verwenden.

그래서 **FastAPI**의 코드를 작성하기 전에 몇 달 동안 OpenAPI, JSON Schema, OAuth2 명세를 연구하며 이들의 관계와 겹치는 부분, 차이점을 이해했습니다.

---

## 디자인

그 후, **FastAPI** 사용자가 될 개발자로서 사용하고 싶은 개발자 "API"를 디자인했습니다.

[Python Developer Survey](https://www.jetbrains.com/research/python-developers-survey-2018/#development-tools)에 따르면 약 80%의 Python 개발자가 PyCharm, VS Code, Jedi 기반 편집기 등에서 개발합니다. 이 과정에서 여러 아이디어를 테스트했습니다.

대부분의 다른 편집기도 유사하게 동작하기 때문에, **FastAPI**의 이점은 거의 모든 편집기에서 누릴 수 있습니다.

/// note | Technical Details

You could also use `from starlette.requests import Request`.

**FastAPI** provides it directly just as a convenience for you, the developer. But it comes directly from Starlette.