}
	}

	for i, version := range x.versions {
		if version.header.VersionID != uv || version.header.Type != ObjectType {
			continue
		}
		// if uv has tiered content we add a
		// free-version to track it for asynchronous
		// deletion via scanner.
		ver, err := x.getIdx(i)
		if err != nil {
			return err
		}

		if freeVersion, toFree := ver.ObjectV2.InitFreeVersion(fi); toFree {
			return x.addVersion(freeVersion)

## Installation

<div class="termy">

```console
$ pip install fastapi

---> 100%
```

</div>

   * calls returns to zero).
   *
   * Note: The time at which a [call][Call] is considered idle is different depending on whether it
   * was run [asynchronously][Call.enqueue] or [synchronously][Call.execute]. Asynchronous calls
   * become idle after the [onResponse][Callback.onResponse] or [onFailure][Callback.onFailure]
   * callback has returned. Synchronous calls become idle once [execute()][Call.execute] returns.

        log.info("Minimum log level set to {}", level);
    }

    /**
     * Enable or disable asynchronous logging
     *
     * @param enable true to enable async logging
     */
    public void setAsyncLogging(boolean enable) {
        this.asyncLogging = enable;
        log.info("Asynchronous logging {}", enable ? "enabled" : "disabled");
    }

    /**
     * Configure rate limiting
     *

 * Caffeine}</a> class. Caffeine offers better performance, more features (including asynchronous
 * loading), and fewer <a
 * href="https://github.com/google/guava/issues?q=is%3Aopen+is%3Aissue+label%3Apackage%3Dcache+label%3Atype%3Ddefect">bugs</a>.
 *
 * <p>Caffeine defines its own interfaces (<a

Nesta seção, veremos como usar outros middlewares.

## Adicionando middlewares ASGI

Como o **FastAPI** é baseado no Starlette e implementa a especificação <abbr title="Asynchronous Server Gateway Interface">ASGI</abbr>, você pode usar qualquer middleware ASGI.

O middleware não precisa ser feito para o FastAPI ou Starlette para funcionar, desde que siga a especificação ASGI.

///

/// tip | Tipp

Wenn Sie in Ihren Tests neben dem Senden von Anfragen an Ihre FastAPI-Anwendung auch `async`-Funktionen aufrufen möchten (z. B. asynchrone Datenbankfunktionen), werfen Sie einen Blick auf die [Async-Tests](../advanced/async-tests.md){.internal-link target=_blank} im Handbuch für fortgeschrittene Benutzer.

///

## Tests separieren

Here's a little bit of that history.

## Alternatives { #alternatives }

I have been creating APIs with complex requirements for several years (Machine Learning, distributed systems, asynchronous jobs, NoSQL databases, etc), leading several teams of developers.

As part of that, I needed to investigate, test and use many alternatives.

The history of **FastAPI** is in great part the history of its predecessors.

     *
     * @param config
     *            The configuration to use
     * @param mid
     *            The message ID of the request to cancel
     * @param asyncId
     *            The async ID for asynchronous operations (0 for synchronous)
     */
    public Smb2CancelRequest(final Configuration config, final long mid, final long asyncId) {
        super(config, SMB2_CANCEL);
        setMid(mid);
        setAsyncId(asyncId);

## Servidores ASGI

Vamos nos aprofundar um pouco mais em detalhes.

FastAPI utiliza um padrão para construir frameworks e servidores web em Python chamado <abbr title="Asynchronous Server Gateway Interface">ASGI</abbr>. FastAPI é um framework web ASGI.