Para usar formularios, primero instala <a href="https://github.com/Kludex/python-multipart" class="external-link" target="_blank">`python-multipart`</a>.

Asegúrate de crear un [entorno virtual](../virtual-environments.md){.internal-link target=_blank}, activarlo, y luego instalarlo, por ejemplo:

```console
$ pip install python-multipart
```

///

/// note | Nota

Esto es compatible desde la versión `0.113.0` de FastAPI. 🤓

You could also define it as a normal function instead of `async def`:

{* ../../docs_src/first_steps/tutorial003_py39.py hl[7] *}

/// note

If you don't know the difference, check the [Async: *"In a hurry?"*](../async.md#in-a-hurry){.internal-link target=_blank}.

///

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

{* ../../docs_src/first_steps/tutorial001_py39.py hl[8] *}

{* ../../docs_src/first_steps/tutorial003_py39.py hl[7] *}

/// note | Hinweis

Wenn Sie den Unterschied nicht kennen, lesen Sie [Async: *„In Eile?“*](../async.md#in-a-hurry){.internal-link target=_blank}.

///

### Schritt 5: den Inhalt zurückgeben { #step-5-return-the-content }

{* ../../docs_src/first_steps/tutorial001_py39.py hl[8] *}

您可以使用 **Pydantic 模型**在 FastAPI 中声明**表单字段**。

/// info

要使用表单，需预先安装 <a href="https://github.com/Kludex/python-multipart" class="external-link" target="_blank">`python-multipart`</a> 。

确保您创建、激活一个[虚拟环境](../virtual-environments.md){.internal-link target=_blank}后再安装。

```console
$ pip install python-multipart
```

///

/// note

自 FastAPI 版本 `0.113.0` 起支持此功能。🤓

///

## 表单的 Pydantic 模型

Bu süreçte birçok alternatifi araştırmak, test etmek ve kullanmak zorunda kaldım.

**FastAPI**'ın geçmişi, büyük ölçüde önceden geliştirilen araçların geçmişini kapsıyor.

[Alternatifler](alternatives.md){.internal-link target=_blank} bölümünde belirtildiği gibi:

<blockquote markdown="1">

Başkalarının daha önceki çalışmaları olmasaydı, **FastAPI** var olmazdı.

- [API Server Network Proxy](https://github.com/kubernetes/enhancements/blob/master/keps/sig-api-machinery/1281-network-proxy/README.md) going alpha in 1.16.
- [Extensions](https://github.com/kubernetes/enhancements/blob/master/keps/sig-cloud-provider/991-cloud-controller-migration/README.md) for Cloud Controller Manager Migration.

* <a href="https://github.com/OAI/OpenAPI-Specification/blob/main/versions/3.1.0.md#parameter-object" class="external-link" target="_blank">`Parameter Object` (в специфікації)</a> використовується FastAPI для:
    * `Path()`
    * `Query()`
    * `Header()`
    * `Cookie()`

- Alpha swap support can now be enabled on Kubernetes nodes with the `NodeSwapEnabled` feature flag. See [KEP-2400](https://github.com/kubernetes/enhancements/blob/master/keps/sig-node/2400-node-swap/README.md#design-details) for details. ([#102823](https://github.com/kubernetes/kubernetes/pull/102823), [@ehashman](https://github.com/ehashman))

- Kubeadm: http://git.k8s.io/enhancements/keps/sig-cluster-lifecycle/kubeadm/2067-rename-master-label-taint/README.md ([#95382](https://github.com/kubernetes/kubernetes/pull/95382), [@neolit123](https://github.com/neolit123)) [SIG Cluster Lifecycle]

В рамках работы над этими проектами я исследовал, проверял и использовал многие фреймворки.

Во многом история **FastAPI** - история его предшественников.

Как написано в разделе [Альтернативы](alternatives.md){.internal-link target=_blank}:

<blockquote markdown="1">

**FastAPI** не существовал бы, если б не было более ранних работ других людей.