### Múltiplas Aplicações

Podem existir **múltiplas aplicações** em execução no mesmo servidor (ou servidores), por exemplo: outras APIs ou um banco de dados.

Entonces, era un sistema completo adicional.

No es muy popular o usado hoy en día.

## OpenAPI

OpenAPI (anteriormente conocido como Swagger) es la especificación abierta para construir APIs (ahora parte de la Linux Foundation).

**FastAPI** se basa en **OpenAPI**.

Eso es lo que hace posible tener múltiples interfaces de documentación interactiva automática, generación de código, etc.

 * [Okurl](https://github.com/yschimke/okurl/wiki) A curl-like client for social networks and other APIs.
 * [PersistentCookieJar](https://github.com/franmontiel/PersistentCookieJar): A persistent `CookieJar`.
 * ⬜️ [Picasso](https://github.com/square/picasso): A powerful image downloading and caching library for Android.

Returns a set of temporary security credentials that you can use to access MinIO resources. AssumeRole requires authorization credentials for an existing user on MinIO. The advantages of this API are

   * (In other words, this method must allocate a new array). The caller is thus free to modify the
   * returned array.
   *
   * <p>This method acts as bridge between array-based and collection-based APIs.
   *
   * @return an array containing all of the elements in this queue
   */
  @CanIgnoreReturnValue // pushed down from class to method
  @Override
  public Object[] toArray() {

---

"_If you're looking to learn one **modern framework** for building REST APIs, check out **FastAPI** [...] It's fast, easy to use and easy to learn [...]_"

"_We've switched over to **FastAPI** for our **APIs** [...] I think you'll like it [...]_"

			return nil, cred
		}
	}
	writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(ErrAccessDenied), r.URL)
	return nil, auth.Credentials{}
}

// AdminError - is a generic error for all admin APIs.
type AdminError struct {
	Code       string
	Message    string
	StatusCode int
}

func (ae AdminError) Error() string {
	return ae.Message
}

**Código fonte**: <a href="https://github.com/fastapi/fastapi" target="_blank">https://github.com/fastapi/fastapi</a>

---

FastAPI é um moderno e rápido (alta performance) _framework web_ para construção de APIs com Python, baseado nos _type hints_ padrões do Python.

Os recursos chave são:

    } catch (e: NoSuchMethodException) {
      super.buildTrustRootIndex(trustManager)
    }

  override fun getHandshakeServerNames(sslSocket: SSLSocket): List<String> {
    // The superclass implementation requires APIs not available until API 24+.
    if (Build.VERSION.SDK_INT < 24) return listOf()
    return super.getHandshakeServerNames(sslSocket)
  }

  override fun log(
    message: String,
    level: Int,

Es handelte sich also um ein komplett zusätzliches System.

Heutzutage ist es nicht sehr populär und wird kaum verwendet.

## OpenAPI

OpenAPI (früher bekannt als Swagger) ist die offene Spezifikation zum Erstellen von APIs (jetzt Teil der Linux Foundation).

**FastAPI** basiert auf **OpenAPI**.

Das ist es, was erlaubt, mehrere automatische interaktive Dokumentations-Oberflächen, Codegenerierung, usw. zu haben.