**FastAPI** proporciona varios middlewares en `fastapi.middleware` solo como una conveniencia para ti, el desarrollador. Pero la mayoría de los middlewares disponibles provienen directamente de Starlette.

///

## `HTTPSRedirectMiddleware`

Impone que todas las requests entrantes deben ser `https` o `wss`.

<img src="/img/tutorial/extending-openapi/image04.png">

## Alterar parâmetros de UI padrão do Swagger

O FastAPI inclui alguns parâmetros de configuração padrão apropriados para a maioria dos casos de uso.

Inclui estas configurações padrão:

{* ../../fastapi/openapi/docs.py ln[7:23] *}

Você pode substituir qualquer um deles definindo um valor diferente no argumento `swagger_ui_parameters`.

Pero por defecto, todo **"simplemente funciona"**.

### Validación

* Validación para la mayoría (¿o todas?) de los **tipos de datos** de Python, incluyendo:
    * Objetos JSON (`dict`).
    * Array JSON (`list`) definiendo tipos de elementos.

	notificationEventsSkippedTotalMD    = NewCounterMD(notificationEventsSkippedTotal, "Events that were skipped to be sent to the targets due to the in-memory queue being full")
)

// loadClusterNotificationMetrics - `MetricsLoaderFn` for cluster notification metrics.
func loadClusterNotificationMetrics(_ context.Context, m MetricValues, _ *metricsCache) error {

        searchEngineClient = new SearchEngineClient() {
            @Override
            public long deleteByQuery(String index, QueryBuilder query) {
                throw new OutOfMemoryError("Out of memory");
            }
        };
        ComponentUtil.register(searchEngineClient, "searchEngineClient");

        // OutOfMemoryError is an Error, not Exception, so it will not be caught

 * interfere with session-based authentication schemes that require cookies.
 *
 * As persistence, implementations of this interface must also provide storage of cookies. Simple
 * implementations may store cookies in memory; sophisticated ones may use the file system or
 * database to hold accepted cookies. The [cookie storage model][rfc_6265_53] specifies policies for
 * updating and expiring cookies.
 *

                String.format(Locale.ROOT, "Caught an exception in %s.  Shutting down.", t),
                e);
      } catch (Throwable errorInLogging) { // sneaky checked exception
        // If logging fails, e.g. due to missing memory, at least try to log the
        // message and the cause for the failed logging.
        System.err.println(e.getMessage());
        System.err.println(errorInLogging.getMessage());
      } finally {
        runtime.exit(1);

Específicamente, ver Uvicorn, Starlette y FastAPI comparados juntos (entre muchas otras herramientas).

Cuanto más simple sea el problema resuelto por la herramienta, mejor rendimiento tendrá. Y la mayoría de los benchmarks no prueban las funcionalidades adicionales proporcionadas por la herramienta.

La jerarquía es como:

* **Uvicorn**: un servidor ASGI
    * **Starlette**: (usa Uvicorn) un microframework web

import com.google.errorprone.annotations.CanIgnoreReturnValue;
import java.io.DataInput;
import java.io.IOException;
import org.jspecify.annotations.Nullable;

/**
 * An extension of {@code DataInput} for reading from in-memory byte arrays; its methods offer
 * identical functionality but do not throw {@link IOException}.
 *
 * <p><b>Warning:</b> The caller is responsible for not attempting to read past the end of the

 */
package org.apache.maven.building;

import java.io.IOException;
import java.io.InputStream;

/**
 * Provides access to the contents of a source independently of the backing store (e.g. file system, database, memory).
 *
 * @deprecated since 4.0.0, use {@link org.apache.maven.api.services} instead
 */
@Deprecated(since = "4.0.0")
public interface Source {

    /**