Как вы видели в предыдущей главе о [Концепциях деплоя](concepts.md){.internal-link target=_blank}, существует несколько стратегий.

Здесь я покажу, как использовать **Uvicorn** с **воркер-процессами** через команду `fastapi` или напрямую через команду `uvicorn`.

/// info | Информация

Этого можно добиться, используя <a href="https://docs.pydantic.dev/latest/concepts/validators/#field-after-validator" class="external-link" target="_blank">`AfterValidator` Pydantic</a> внутри `Annotated`.

/// tip | Совет

В Pydantic также есть <a href="https://docs.pydantic.dev/latest/concepts/validators/#field-before-validator" class="external-link" target="_blank">`BeforeValidator`</a> и другие. 🤓

///

/**
 * A {@code MojoExecution} represents a single execution of a Maven Plugin during a given build.
 * An instance of this object is bound to the {@link org.apache.maven.api.di.MojoExecutionScoped}
 * and available as {@code mojoExecution} within {@link org.apache.maven.api.plugin.annotations.Parameter}
 * expressions.
 *
 * @since 4.0.0
 */
@Experimental
public interface MojoExecution {

    @Nonnull

/// info | Info

Um hochgeladene Dateien und/oder Formulardaten zu empfangen, 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, diese aktivieren und es dann installieren, z. B.:

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

///

We’re currently switching to an automated translation system 🤖, which will help keep all translations complete and up to date.

Learn more: [Contributing – Translations](https://fastapi.tiangolo.com/contributing/#translations){.internal-link target=_blank}

import org.codehaus.plexus.component.configurator.expression.TypeAwareExpressionEvaluator;
import org.codehaus.plexus.configuration.PlexusConfiguration;

/**
 * An enhanced {@link ObjectWithFieldsConverter} leveraging the {@link TypeAwareExpressionEvaluator}
 * interface.
 */
class EnhancedConfigurationConverter extends ObjectWithFieldsConverter {

    // Cache for expression evaluation results to avoid repeated evaluations

하지만 `Request` 객체에 직접 접근해야 하는 상황이 있을 수 있습니다.

## `Request` 객체에 대한 세부 사항

**FastAPI**는 실제로 내부에 **Starlette**을 사용하며, 그 위에 여러 도구를 덧붙인 구조입니다. 따라서 여러분이 필요할 때 Starlette의 <a href="https://www.starlette.dev/requests/" class="external-link" target="_blank">`Request`</a> 객체를 직접 사용할 수 있습니다.

`Request` 객체에서 데이터를 직접 가져오는 경우(예: 본문을 읽기)에는 FastAPI가 해당 데이터를 검증하거나 변환하지 않으며, 문서화(OpenAPI를 통한 문서 자동화(로 생성된) API 사용자 인터페이스)도 되지 않습니다.

That's why the current versions are still `0.x.x`, this reflects that each version could potentially have breaking changes. This follows the <a href="https://semver.org/" class="external-link" target="_blank">Semantic Versioning</a> conventions.

Por eso las versiones actuales siguen siendo `0.x.x`, esto refleja que cada versión podría tener potencialmente cambios incompatibles. Esto sigue las convenciones de <a href="https://semver.org/" class="external-link" target="_blank">Semantic Versioning</a>.

## 結論

透過這個教學，你應該對**環境變數**是什麼以及如何在 Python 中使用它們有了基本的了解。

你也可以在<a href="https://zh.wikipedia.org/wiki/%E7%8E%AF%E5%A2%83%E5%8F%98%E9%87%8F" class="external-link" target="_blank">環境變數 - 維基百科</a> (<a href="https://en.wikipedia.org/wiki/Environment_variable" class="external-link" target="_blank">Wikipedia for Environment Variable</a>) 中了解更多關於它們的資訊。

在許多情況下，環境變數的用途和適用性可能不會立刻顯現。但是在開發過程中，它們會在許多不同的場景中出現，因此瞭解它們是非常必要的。