- Kube-apiserver: multiple comma-separated protocols in a single X-Stream-Protocol-Version header are now recognized, in addition to multiple headers, complying with RFC2616 ([#89857](https://github.com/kubernetes/kubernetes/pull/89857), [@tedyu](https://github.com/tedyu)) [SIG API Machinery]

    assertThat(cacheControl.toString()).isEqualTo(header)
  }

  @Test
  @Throws(Exception::class)
  fun parseIgnoreCacheControlExtensions() {
    // Example from http://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html#sec14.9.6
    val header = "private, community=\"UCI\""
    val cacheControl =
      parse(
        Headers.Builder()
          .set("Cache-Control", header)
          .build(),

  fun withSettings(settings: Settings) =
    apply {
      this.settings = settings
    }

  fun withWebSocketUpgrade(listener: WebSocketListener) =
    apply {
      status = "HTTP/1.1 101 Switching Protocols"
      setHeader("Connection", "Upgrade")
      setHeader("Upgrade", "websocket")
      body = null
      webSocketListener = listener
    }

  override fun toString(): String = status

Isso não é uma limitação do **FastAPI**, é parte do protocolo HTTP.

///

## Upload de Arquivo Opcional

Você pode tornar um arquivo opcional usando anotações de tipo padrão e definindo um valor padrão de `None`:

			AccessKeyID: cred.SecretKey,
		},
	}
	return eventData, nil
}

var statusTextToCode = map[string]int{
	"Continue":                        http.StatusContinue,
	"Switching Protocols":             http.StatusSwitchingProtocols,
	"Processing":                      http.StatusProcessing,
	"Early Hints":                     http.StatusEarlyHints,
	"OK":                              http.StatusOK,

Só um detalhe técnico para nerds curiosos. 🤓

Por baixo, na especificação técnica ASGI, essa é a parte do <a href="https://asgi.readthedocs.io/en/latest/specs/lifespan.html" class="external-link" target="_blank">Protocolo Lifespan</a>, e define eventos chamados `startup` e `shutdown`.

/// info | "Informação"

# Gets the download command supported by the system (currently either curl or wget)
DOWNLOAD_COMMAND=""
function set_download_command () {
  # Try curl.
  if command -v curl > /dev/null; then
    if curl --version | grep Protocols  | grep https > /dev/null; then
      DOWNLOAD_COMMAND="curl -fLSs --retry 5 --retry-delay 1 --retry-connrefused"
      return
    fi
    echo curl does not support https, will try wget for downloading files.
  else

pkg syscall (linux-arm-cgo), type RawSockaddrLinklayer struct, Ifindex int32
pkg syscall (linux-arm-cgo), type RawSockaddrLinklayer struct, Pkttype uint8
pkg syscall (linux-arm-cgo), type RawSockaddrLinklayer struct, Protocol uint16
pkg syscall (linux-arm-cgo), type RawSockaddrNetlink struct
pkg syscall (linux-arm-cgo), type RawSockaddrNetlink struct, Family uint16
pkg syscall (linux-arm-cgo), type RawSockaddrNetlink struct, Groups uint32

## Origem

Uma origem é a combinação de protocolo (`http`, `https`), domínio (`myapp.com`, `localhost`, `localhost.tiangolo.com`), e porta (`80`, `443`, `8080`).

Então, todos estes são origens diferentes:

* `http://localhost`
* `https://localhost`

Addresses specify a webserver (like `github.com`) and all of the **static** configuration necessary to connect to that server: the port number, HTTPS settings, and preferred network protocols (like HTTP/2).