固然，**FastAPI** 支持 **OAuth2** 身份验证。

但为了节省开发者的时间，不要只为了查找很少的内容，不得不阅读冗长的规范文档。

我们建议使用 **FastAPI** 的安全工具。

## 概览

首先，看看下面的代码是怎么运行的，然后再回过头来了解其背后的原理。

## 创建 `main.py`

把下面的示例代码复制到 `main.py`：

{* ../../docs_src/security/tutorial001_an_py39.py *}

## 运行

/// info | 说明

      System.out.println("Response 2 network response:  " + response2.networkResponse());
    }

    System.out.println("Response 2 equals Response 1? " + response1Body.equals(response2Body));
  }

  public static void main(String... args) throws Exception {
    new CacheResponse(new File("CacheResponse.tmp")).run();
  }

import org.gradle.tooling.events.task.TaskFinishEvent
import org.gradle.tooling.events.task.TaskOperationResult
import java.io.Serializable

/**
 * A BuildService which monitors a few tasks (in both build-logic and main build) and collects information for Build Scan.
 * It's currently implemented by two use cases:
 * 1. Collect cache misses for compilation tasks and publish a `CACHE_MISS` tag for a Build Scan.

/// note | Detalles técnicos

En la especificación de OpenAPI se llama el <a href="https://github.com/OAI/OpenAPI-Specification/blob/main/versions/3.0.3.md#operation-object" class="external-link" target="_blank">Objeto de Operación</a>.

///

Tiene toda la información sobre la *path operation* y se usa para generar la documentación automática.

/// note | Detalhes Técnicos

Na especificação do OpenAPI, isso é chamado de um <a href="https://github.com/OAI/OpenAPI-Specification/blob/main/versions/3.0.3.md#operation-object" class="external-link" target="_blank">Objeto de Operação</a>.

///

Ele possui toda a informação sobre a *operação de rota* e é usado para gerar a documentação automaticamente.

### Revisa la documentación automática de la API { #check-the-automatic-api-docs }

Ahora, ejecuta el comando `fastapi` con tu archivo:

<div class="termy">

```console
$ fastapi dev main.py

<span style="color: green;">INFO</span>:     Uvicorn running on http://127.0.0.1:8000 (Press CTRL+C to quit)
```

</div>

import org.apache.maven.api.services.Source;

/**
 * The {@code ModelParser} interface is used to locate and read {@link Model}s from the file system.
 * This allows plugging in additional syntaxes for the main model read by Maven when building a project.
 *
 * @since 4.0.0
 */
@Experimental
@Consumer
@Named
public interface ModelParser extends SpiService {

    /**

4.  Do your best to have a [well-formed commit message][] for the change.
5.  Pull requests typically do not need to modify the files under the `android`
    directory: We have a script that automatically mirrors changes from the main
    directories into the `android` directories.

[Java style guide]: https://google.github.io/styleguide/javaguide.html
[well-formed commit message]: https://google.github.io/eng-practices/review/developer/cl-descriptions.html

 * limitations under the License.
 */
package gradlebuild.docs.dsl.docbook;

import java.util.HashMap;
import java.util.Locale;
import java.util.Map;
import java.util.regex.Pattern;

/**
 * Converts the main description of a javadoc comment into a stream of tokens.
 */
class BasicJavadocLexer implements JavadocLexer {
    private static final Pattern HTML_ELEMENT = Pattern.compile("(?s)<\\\\?[^<]+?>");

    # Set job outputs to values from filter step
    outputs:
      docs: ${{ steps.filter.outputs.docs }}
    steps:
    - uses: actions/checkout@v6
    # For pull requests it's not necessary to checkout the code but for the main branch it is
    - uses: dorny/paths-filter@v3
      id: filter
      with:
        filters: |
          docs:
            - README.md
            - docs/**
            - docs_src/**