![Swagger UI interaction](https://fastapi.tiangolo.com/img/index/index-05-swagger-04.png)

### Plus loin avec la documentation API alternative

Et maintenant, rendez-vous sur <a href="http://127.0.0.1:8000/redoc" class="external-link" target="_blank">http://127.0.0.1:8000/redoc</a>.

* La documentation alternative reflétera également le nouveau paramètre de requête et le nouveau corps :

# Install to local repository
mvn install
```

### Testing
```bash
# Run all tests (JUnit 4 based)
mvn test

# Run specific test class
mvn test -Dtest=SpecificTest

# Alternative test runner
mvn surefire:test
```

### Code Quality
```bash
# Generate code coverage reports
mvn jacoco:report

# License header validation
mvn apache-rat:check

        Cell a = as[i];
        if (a != null) sum += a.value;
      }
    }
    return sum;
  }

  /**
   * Resets variables maintaining the sum to zero. This method may be a useful alternative to
   * creating a new adder, but is only effective if there are no concurrent updates. Because this
   * method is intrinsically racy, it should only be used when it is known that no threads are
   * concurrently updating.

# Clase personalizada de Request y APIRoute { #custom-request-and-apiroute-class }

En algunos casos, puede que quieras sobrescribir la lógica utilizada por las clases `Request` y `APIRoute`.

En particular, esta puede ser una buena alternativa a la lógica en un middleware.

Por ejemplo, si quieres leer o manipular el request body antes de que sea procesado por tu aplicación.

/// danger | Advertencia

Esta es una funcionalidad "avanzada".

    checkHelperVersion(getClass().getClassLoader(), "SafeAtomicHelper");
    checkHelperVersion(NO_ATOMIC_FIELD_UPDATER, "SynchronizedAtomicHelper");

    // Then, run the actual tests under each alternative classloader:

    runTestMethod(NO_ATOMIC_FIELD_UPDATER);
    // TODO(lukes): assert that the logs are full of errors
  }

  /**

   * interned, and so does not prevent these instances from being garbage-collected. This most
   * likely does not perform as well as {@link #newStrongInterner}, but is the best alternative when
   * the memory usage of that implementation is unacceptable.
   */
  @GwtIncompatible("java.lang.ref.WeakReference")
  public static <E> Interner<E> newWeakInterner() {
    return newBuilder().weak().build();

在此，我们简单回顾一下 **FastAPI** 的历史。

## 备选方案

有那么几年，我曾领导数个开发团队为诸多复杂需求创建各种 API，这些需求包括机器学习、分布系统、异步任务、NoSQL 数据库等领域。

作为工作的一部分，我需要调研很多备选方案、还要测试并且使用这些备选方案。

**FastAPI** 其实只是延续了这些前辈的历史。

正如[备选方案](alternatives.md){.internal-link target=_blank}一章所述：

<blockquote markdown="1">
没有大家之前所做的工作，**FastAPI** 就不会存在。

以前创建的这些工具为它的出现提供了灵感。

在那几年中，我一直回避创建新的框架。首先，我尝试使用各种框架、插件、工具解决 **FastAPI** 现在的功能。

In einigen Fällen möchten Sie möglicherweise die von den Klassen `Request` und `APIRoute` verwendete Logik überschreiben.

Das kann insbesondere eine gute Alternative zur Logik in einer Middleware sein.

Wenn Sie beispielsweise den <abbr title="Anfragekörper">Requestbody</abbr> lesen oder manipulieren möchten, bevor er von Ihrer Anwendung verarbeitet wird.

/// danger | Gefahr

   * interned, and so does not prevent these instances from being garbage-collected. This most
   * likely does not perform as well as {@link #newStrongInterner}, but is the best alternative when
   * the memory usage of that implementation is unacceptable.
   */
  @GwtIncompatible("java.lang.ref.WeakReference")
  public static <E> Interner<E> newWeakInterner() {
    return newBuilder().weak().build();

///

Dem `status_code`-Parameter wird eine Zahl mit dem HTTP-Statuscode übergeben.

/// info | Info

Alternativ kann `status_code` auch ein `IntEnum` erhalten, wie etwa Pythons <a href="https://docs.python.org/3/library/http.html#http.HTTPStatus" class="external-link" target="_blank">`http.HTTPStatus`</a>.

///

Dies wird: