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

### Альтернативна документація API { #alternative-api-docs }

А тепер перейдіть на [http://127.0.0.1:8000/redoc](http://127.0.0.1:8000/redoc).

Ви побачите альтернативну автоматичну документацію (надану [ReDoc](https://github.com/Rebilly/ReDoc)):

     * below, we actually run the AbstractFutureTest methods under that scenario.
     */
    checkHelperVersion(NO_ATOMIC_REFERENCE_FIELD_UPDATER, "SynchronizedHelper");

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

    /*
     * We don't need to test further under NO_UNSAFE: We verified that it selects
     * AtomicReferenceFieldUpdaterAtomicHelper, which is the default, which means that it's used

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

## Alternative API docs { #alternative-api-docs }

And you can also go to [http://192.168.99.100/redoc](http://192.168.99.100/redoc) or [http://127.0.0.1/redoc](http://127.0.0.1/redoc) (or equivalent, using your Docker host).

You will see the alternative automatic documentation (provided by [ReDoc](https://github.com/Rebilly/ReDoc)):

    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
  }

  /**

# Custom Request and APIRoute class { #custom-request-and-apiroute-class }

In some cases, you may want to override the logic used by the `Request` and `APIRoute` classes.

In particular, this may be a good alternative to logic in a middleware.

For example, if you want to read or manipulate the request body before it is processed by your application.

/// danger

This is an "advanced" feature.

Se importa/incluye directamente en FastAPI para que puedas importarla desde `fastapi` y evitar importar accidentalmente la alternativa `BackgroundTask` (sin la `s` al final) de `starlette.background`.

## Documentation alternative de l'API { #alternative-api-docs }

Et vous pouvez aussi aller sur [http://192.168.99.100/redoc](http://192.168.99.100/redoc) ou [http://127.0.0.1/redoc](http://127.0.0.1/redoc) (ou équivalent, en utilisant votre hôte Docker).

Vous verrez la documentation automatique alternative (fournie par [ReDoc](https://github.com/Rebilly/ReDoc)) :

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

## Documentación Alternativa de la API { #alternative-api-docs }

Y también puedes ir a [http://192.168.99.100/redoc](http://192.168.99.100/redoc) o [http://127.0.0.1/redoc](http://127.0.0.1/redoc) (o equivalente, usando tu host de Docker).

Verás la documentación alternativa automática (proporcionada por [ReDoc](https://github.com/Rebilly/ReDoc)):

 * lifecycle phase. Standard lifecycles use plugin execution {@code <phase>} or mojo default lifecycle phase to
 * calculate the execution plan, but custom lifecycles can use alternative mapping strategies.
 */
@Named(DefaultLifecycleMappingDelegate.HINT)
@Singleton
public class DefaultLifecycleMappingDelegate implements LifecycleMappingDelegate {
    public static final String HINT = "default";

![Swagger UI interaction](https://fastapi.tiangolo.com/img/index/index-03-swagger-02.png)

* [**ReDoc**](https://github.com/Rebilly/ReDoc) ile alternatif API dokümantasyonu.

![ReDoc](https://fastapi.tiangolo.com/img/index/index-06-redoc-02.png)

### Sadece Modern Python { #just-modern-python }