{* ../../docs_src/server_sent_events/tutorial005_py310.py hl[14] *}

## Detalhes Técnicos { #technical-details }

O FastAPI implementa algumas boas práticas de SSE prontas para uso.

- Enviar um comentário de keep alive `ping` a cada 15 segundos quando não houver mensagens, para evitar que alguns proxies fechem a conexão, como sugerido na [especificação HTML: Server-Sent Events](https://html.spec.whatwg.org/multipage/server-sent-events.html#authoring-notes).

## Detalles técnicos { #technical-details }

FastAPI implementa algunas mejores prácticas de SSE desde el primer momento.

                     */
                    /* Technically we should also try to authenticate here but that means doing the session setup and tree connect separately. For now a simple connect will at least tell us if the host is alive. That should be sufficient for 99% of the cases. We can revisit this again for 2.0.
                     */
                    trans.connect();
                    tree = trans.getSmbSession(auth).getSmbTree(dr.share, service);

- [HTML spesifikasyonu: Server-Sent Events](https://html.spec.whatwg.org/multipage/server-sent-events.html#authoring-notes) önerisine uygun olarak, bazı proxy'lerin bağlantıyı kapatmasını önlemek için, 15 saniye boyunca hiç mesaj gelmezse **"keep alive" `ping` yorumu** gönderir.
- Akışın **cache'lenmesini önlemek** için `Cache-Control: no-cache` header'ını ayarlar.
- Nginx gibi bazı proxy'lerde **buffering'i önlemek** için özel `X-Accel-Buffering: no` header'ını ayarlar.

## Технические детали { #technical-details }

FastAPI из коробки реализует некоторые лучшие практики для SSE.

- Отправлять комментарий «ping» для поддержания соединения («keep alive») каждые 15 секунд, когда нет сообщений, чтобы предотвратить закрытие соединения некоторыми прокси, как рекомендовано в [HTML specification: Server-Sent Events](https://html.spec.whatwg.org/multipage/server-sent-events.html#authoring-notes).

## Détails techniques { #technical-details }

FastAPI met en œuvre certaines bonnes pratiques SSE prêtes à l’emploi.

{* ../../docs_src/server_sent_events/tutorial005_py310.py hl[14] *}

## Технічні деталі { #technical-details }

FastAPI реалізує деякі найкращі практики SSE «з коробки».

        do {
            if (readn(this.in, this.sbuf, 0, 4) < 4) {
                return null;
            }
        } while (this.sbuf[0] == (byte) 0x85); /* Dodge NetBIOS keep-alive */
        /* read smb header */
        if (readn(this.in, this.sbuf, 4, SmbConstants.SMB1_HEADER_LENGTH) < SmbConstants.SMB1_HEADER_LENGTH) {
            return null;
        }

        if (log.isTraceEnabled()) {

against each other; however, they got settled down in a minute or
two, and the game began.  Alice thought she had never seen such a
curious croquet-ground in her life; it was all ridges and
furrows; the balls were live hedgehogs, the mallets live
flamingoes, and the soldiers had to double themselves up and to
stand on their hands and feet, to make the arches.

  The chief difficulty Alice found at first was in managing her

    assertThat(connect.headers["User-Agent"]).isEqualTo(USER_AGENT)
    assertThat(connect.headers["Host"]).isEqualTo("android.com:443")
    assertThat(connect.headers["Proxy-Connection"]).isEqualTo("Keep-Alive")
    val get = server.takeRequest()
    assertThat(get.headers["Private"]).isEqualTo("Secret")
    assertThat(hostnameVerifier.calls).isEqualTo(listOf("verify android.com"))
  }

  @Test