# CORS（跨域资源共享）

<a href="https://developer.mozilla.org/en-US/docs/Web/HTTP/CORS" class="external-link" target="_blank">CORS 或者「跨域资源共享」</a> 指浏览器中运行的前端拥有与后端通信的 JavaScript 代码，而后端处于与前端不同的「源」的情况。

## 源

源是协议（`http`，`https`）、域（`myapp.com`，`localhost`，`localhost.tiangolo.com`）以及端口（`80`、`443`、`8080`）的组合。

因此，这些都是不同的源：

* `http://localhost`
* `https://localhost`
* `http://localhost:8080`

即使它们都在 `localhost` 中，但是它们使用不同的协议或者端口，所以它们都是不同的「源」。

## 步骤

Sie können **Pydantic-Modelle** verwenden, um **Formularfelder** in FastAPI zu deklarieren.

/// info | Info

Um Formulare zu verwenden, installieren Sie zuerst <a href="https://github.com/Kludex/python-multipart" class="external-link" target="_blank">`python-multipart`</a>.

Stellen Sie sicher, dass Sie eine [virtuelle Umgebung](../virtual-environments.md){.internal-link target=_blank} erstellen, sie aktivieren und es dann installieren, zum Beispiel:

### Варианты использования: внешний сервис { #use-cases-external-service }

Пример: у вас есть внешний провайдер аутентификации, к которому нужно обращаться.

Вы отправляете ему токен, а он возвращает аутентифицированного пользователя.

# extraSecret: minio-extraenv ## OpenID Identity Management ## The following section documents environment variables for enabling external identity management using an OpenID Connect (OIDC)-compatible provider. ## See https://docs.min.io/minio/baremetal/security/openid-external-identity-management/external-authentication-with-openid-identity-provider.html#minio-external-identity-management-openid for a tutorial on using these variables. oidc: enabled: false configUrl: "https://identity-provider-u...

# extraSecret: minio-extraenv ## OpenID Identity Management ## The following section documents environment variables for enabling external identity management using an OpenID Connect (OIDC)-compatible provider. ## See https://docs.min.io/minio/baremetal/security/openid-external-identity-management/external-authentication-with-openid-identity-provider.html#minio-external-identity-management-openid for a tutorial on using these variables. oidc: enabled: false configUrl: "https://identity-provider-u...

# Form Models { #form-models }

You can use **Pydantic models** to declare **form fields** in FastAPI.

/// info

To use forms, first install <a href="https://github.com/Kludex/python-multipart" class="external-link" target="_blank">`python-multipart`</a>.

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

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

GitHub-Repository: <a href="https://github.com/tiangolo/full-stack-fastapi-template" class="external-link" target="_blank">Full Stack FastAPI Template</a>

## Full Stack FastAPI Template – Technologiestack und Funktionen { #full-stack-fastapi-template-technology-stack-and-features }

Репозиторий GitHub: <a href="https://github.com/tiangolo/full-stack-fastapi-template" class="external-link" target="_blank">Full Stack FastAPI Template</a>

## Шаблон Full Stack FastAPI — Технологический стек и возможности { #full-stack-fastapi-template-technology-stack-and-features }

 `directory="static"` 指向包含你的静态文件的目录名字。

`name="static"` 提供了一个能被**FastAPI**内部使用的名字。

所有这些参数可以不同于"`static`"，根据你应用的需要和具体细节调整它们。

## 更多信息

Você pode utilizar **Modelos Pydantic** para declarar **campos de formulários** no FastAPI.

/// info | Informação

Para utilizar formulários, instale primeiramente o <a href="https://github.com/Kludex/python-multipart" class="external-link" target="_blank">`python-multipart`</a>.

Certifique-se de criar um [ambiente virtual](../virtual-environments.md){.internal-link target=_blank}, ativá-lo, e então instalar. Por exemplo:

```console