FastAPI 建立在 **Pydantic** 之上，我之前示範過如何使用 Pydantic 模型來宣告請求與回應。

但 FastAPI 也同樣支援以相同方式使用 [`dataclasses`](https://docs.python.org/3/library/dataclasses.html)：

{* ../../docs_src/dataclasses_/tutorial001_py310.py hl[1,6:11,18:19] *}

這之所以可行，要感謝 **Pydantic**，因為它 [內建支援 `dataclasses`](https://docs.pydantic.dev/latest/concepts/dataclasses/#use-of-stdlib-dataclasses-with-basemodel)。

        validate(form, messages -> {}, () -> asHtml(virtualHost(path_Error_ErrorJsp)));
        if (isLoginRequired()) {
            return redirectToLogin();
        }

        Map<String, Object> doc = null;
        try {
            doc = searchHelper
                    .getDocumentByDocId(form.docId, new String[] { fessConfig.getIndexFieldUrl(), fessConfig.getIndexFieldConfigId() },
                            getUserBean())

 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package gradlebuild.docs.dsl.docbook;

import gradlebuild.docs.dsl.docbook.model.BlockDoc;
import org.w3c.dom.Document;
import org.w3c.dom.Element;

public class BlockDetailRenderer {
    private final GenerationListener listener;

Si lo necesitaras, podrías usar configuraciones y variables de entorno para configurar OpenAPI condicionalmente según el entorno, e incluso desactivarlo por completo.

## Sobre seguridad, APIs y documentación { #about-security-apis-and-docs }

Ocultar las interfaces de usuario de la documentación en producción *no debería* ser la forma de proteger tu API.

Eso no añade ninguna seguridad extra a tu API, las *path operations* seguirán estando disponibles donde están.

    * У запитах та відповідях буде представлений як `float` загальної кількості секунд.
    * Pydantic також дозволяє представляти це як "ISO 8601 time diff encoding", [дивіться документацію для отримання додаткової інформації](https://docs.pydantic.dev/latest/concepts/serialization/#custom-serializers).
* `frozenset`:
    * У запитах і відповідях це буде оброблено так само, як і `set`:

```

## 交互式 API 文档 { #interactive-api-docs }

现在你可以访问 [http://192.168.99.100/docs](http://192.168.99.100/docs) 或 [http://127.0.0.1/docs](http://127.0.0.1/docs)（或其他等价地址，取决于你的 Docker 主机）。

你将看到自动生成的交互式 API 文档（由 [Swagger UI](https://github.com/swagger-api/swagger-ui) 提供）：

![Swagger UI](https://fastapi.tiangolo.com/img/index/index-01-swagger-ui-simple.png)

## 备选 API 文档 { #alternative-api-docs }

/// tip

각 의존성마다 `yield`는 한 번만 사용해야 합니다.

///

/// note | 기술 세부사항

다음과 함께 사용할 수 있는 모든 함수:

* [`@contextlib.contextmanager`](https://docs.python.org/3/library/contextlib.html#contextlib.contextmanager) 또는
* [`@contextlib.asynccontextmanager`](https://docs.python.org/3/library/contextlib.html#contextlib.asynccontextmanager)

는 **FastAPI**의 의존성으로 사용할 수 있습니다.

사실, FastAPI는 내부적으로 이 두 데코레이터를 사용합니다.

///

MinIO server supports storage class in erasure coding mode. This allows configurable data and parity drives per object.

This page is intended as a summary of MinIO Erasure Coding. For a more complete explanation, see <https://docs.min.io/community/minio-object-store/operations/concepts/erasure-coding.html>.

## Overview

MinIO supports two storage classes, Reduced Redundancy class and Standard class. These classes can be defined using environment variables

updateStrategy: RollingUpdate ## Pod priority settings ## ref: https://kubernetes.io/docs/concepts/configuration/pod-priority-preemption/ ## priorityClassName: "" ## Pod runtime class name ## ref https://kubernetes.io/docs/concepts/containers/runtime-class/ ## runtimeClassName: "" ## Set default rootUser, rootPassword ## AccessKey and secretKey is generated when not set ## Distributed MinIO ref: https://min.io/docs/minio/linux/operations/install-deploy-manage/deploy-minio-multi-node-multi-drive.html...

`@lru_cache` is part of `functools` which is part of Python's standard library, you can read more about it in the [Python docs for `@lru_cache`](https://docs.python.org/3/library/functools.html#functools.lru_cache).

## Recap { #recap }

You can use Pydantic Settings to handle the settings or configurations for your application, with all the power of Pydantic models.