Você verá exemplos disso nos próximos capítulos, acerca de bancos de dados relacionais e NoSQL, segurança, etc.

## Compatibilidade do **FastAPI**

A simplicidade do sistema de injeção de dependência do **FastAPI** faz ele compatível com:

* todos os bancos de dados relacionais
* bancos de dados NoSQL
* pacotes externos
* APIs externas
* sistemas de autenticação e autorização
* istemas de monitoramento de uso para APIs

	// Current version being written.
	xlVersionCurrent [4]byte
)

const (
	// Breaking changes.
	// Newer versions cannot be read by older software.
	// This will prevent downgrades to incompatible versions.
	xlVersionMajor = 1

	// Non breaking changes.
	// Bumping this is informational, but should be done
	// if any change is made to the data stored, bumping this

- github.com/docker/distribution: [v2.7.1+incompatible → v2.8.1+incompatible](https://github.com/docker/distribution/compare/v2.7.1...v2.8.1)
- github.com/docker/docker: [v20.10.7+incompatible → v20.10.12+incompatible](https://github.com/docker/docker/compare/v20.10.7...v20.10.12)

Das liegt daran, dass FastAPI standardmäßig jedes enthaltene Element überprüft und sicherstellt, dass es als JSON serialisierbar ist, und zwar unter Verwendung desselben [JSON-kompatiblen Encoders](../tutorial/encoder.md){.internal-link target=_blank}, der im Tutorial erläutert wurde. Dadurch können Sie **beliebige Objekte** zurückgeben, zum Beispiel Datenbankmodelle.

        Locale.class,
        Currency.class,
        List.class,
        Entry.class,
        Object.class,
        Equivalence.class,
        Predicate.class,
        Function.class,
        Comparable.class,
        Comparator.class,
        Ordering.class,
        Class.class,
        Type.class,
        TypeToken.class,
        TimeUnit.class,
        Ticker.class,
        Joiner.class,

        Locale.class,
        Currency.class,
        List.class,
        Entry.class,
        Object.class,
        Equivalence.class,
        Predicate.class,
        Function.class,
        Comparable.class,
        Comparator.class,
        Ordering.class,
        Class.class,
        Type.class,
        TypeToken.class,
        TimeUnit.class,
        Ticker.class,
        Joiner.class,

Beispiele hierfür finden Sie in den nächsten Kapiteln zu relationalen und NoSQL-Datenbanken, Sicherheit usw.

## **FastAPI**-Kompatibilität

Die Einfachheit des Dependency Injection Systems macht **FastAPI** kompatibel mit:

* allen relationalen Datenbanken
* NoSQL-Datenbanken
* externen Packages
* externen APIs
* Authentifizierungs- und Autorisierungssystemen
* API-Nutzungs-Überwachungssystemen

Pero toda esta funcionalidad de usar código asincrónico con `async` y `await` se resume muchas veces como usar "coroutines". Es comparable a la característica principal de Go, las "Goroutines".

## Conclusión

Veamos la misma frase de arriba:

that accompanied this code."

You should also note that Oracle includes multiple, independent
programs in this software package. Some of those programs are provided
under licenses deemed incompatible with the GPLv2 by the Free Software
Foundation and others.  For example, the package includes programs
licensed under the Apache License, Version 2.0.  Such programs are
licensed to you under their original licenses.

   */
  @SuppressWarnings({
    "rawtypes", // https://github.com/google/guava/issues/989
    "NonApiType", // acts as a direct substitute for a constructor call
  })
  public static <E extends Comparable> TreeSet<E> newTreeSet() {
    return new TreeSet<>();
  }

  /**
   * Creates a <i>mutable</i> {@code TreeSet} instance containing the given elements sorted by their
   * natural ordering.
   *