val urls =
    listOf(
      "https://enabled.tls13.com",
      "https://www.howsmyssl.com/a/check",
      "https://tls13.cloudflare.com",
      "https://www.allizom.org/robots.txt",
      "https://tls13.crypto.mozilla.org/",
      "https://tls.ctf.network/robots.txt",
      "https://rustls.jbp.io/",
      "https://h2o.examp1e.net",
      "https://mew.org/",
      "https://tls13.baishancloud.com/",

# WebSockets { #websockets }

Você pode usar [WebSockets](https://developer.mozilla.org/en-US/docs/Web/API/WebSockets_API) com **FastAPI**.

## Instale `websockets` { #install-websockets }

Garanta que você criou um [ambiente virtual](../virtual-environments.md), o ativou e instalou o `websockets` (uma biblioteca Python que facilita o uso do protocolo "WebSocket"):

<div class="termy">

```console
$ pip install websockets

---> 100%
```

    - 然後回傳對應*路徑操作*所產生的 `response`。
- 然後你可以在回傳之前進一步修改 `response`。

{* ../../docs_src/middleware/tutorial001_py310.py hl[8:9,11,14] *}

/// tip

請記得，自訂的非標準標頭可以[使用 `X-` 前綴](https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers)。

但如果你有自訂標頭並希望瀏覽器端的用戶端能看到它們，你需要在 CORS 設定（[CORS（跨來源資源共用）](cors.md)）中使用 [Starlette 的 CORS 文件](https://www.starlette.dev/middleware/#corsmiddleware)所記載的參數 `expose_headers` 將它們加入。

///

그리고 `Response`는 헤더와 쿠키를 설정하는 데 자주 사용될 수 있으므로, **FastAPI**는 `fastapi.Response`로도 이를 제공합니다.

///

## 커스텀 헤더 { #custom-headers }

커스텀 사설 헤더는 [`X-` 접두어를 사용하여](https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers) 추가할 수 있다는 점을 기억하세요.

/// note | Detalles técnicos

Los headers del proxy son:

* [X-Forwarded-For](https://developer.mozilla.org/en-US/docs/Web/HTTP/Reference/Headers/X-Forwarded-For)
* [X-Forwarded-Proto](https://developer.mozilla.org/en-US/docs/Web/HTTP/Reference/Headers/X-Forwarded-Proto)
* [X-Forwarded-Host](https://developer.mozilla.org/en-US/docs/Web/HTTP/Reference/Headers/X-Forwarded-Host)

///

/// note | Технические детали

Заголовки прокси:

* [X-Forwarded-For](https://developer.mozilla.org/en-US/docs/Web/HTTP/Reference/Headers/X-Forwarded-For)
* [X-Forwarded-Proto](https://developer.mozilla.org/en-US/docs/Web/HTTP/Reference/Headers/X-Forwarded-Proto)
* [X-Forwarded-Host](https://developer.mozilla.org/en-US/docs/Web/HTTP/Reference/Headers/X-Forwarded-Host)

///

/// note | Detalhes Técnicos

Os cabeçalhos do proxy são:

* [X-Forwarded-For](https://developer.mozilla.org/en-US/docs/Web/HTTP/Reference/Headers/X-Forwarded-For)
* [X-Forwarded-Proto](https://developer.mozilla.org/en-US/docs/Web/HTTP/Reference/Headers/X-Forwarded-Proto)
* [X-Forwarded-Host](https://developer.mozilla.org/en-US/docs/Web/HTTP/Reference/Headers/X-Forwarded-Host)

///

/// note | Технічні деталі

Заголовки представника:

* [X-Forwarded-For](https://developer.mozilla.org/en-US/docs/Web/HTTP/Reference/Headers/X-Forwarded-For)
* [X-Forwarded-Proto](https://developer.mozilla.org/en-US/docs/Web/HTTP/Reference/Headers/X-Forwarded-Proto)
* [X-Forwarded-Host](https://developer.mozilla.org/en-US/docs/Web/HTTP/Reference/Headers/X-Forwarded-Host)

///

                Pattern.DOTALL
            )
        ),
        new LicenseMatcher("MPL-1.1", true, false, Pattern.compile("Mozilla Public License.*Version 1.1", Pattern.DOTALL)),
        new LicenseMatcher("MPL-2.0", true, false, Pattern.compile("Mozilla\\s*Public\\s*License\\s*Version\\s*2\\.0", Pattern.DOTALL)),
        new LicenseMatcher("XZ", false, false, Pattern.compile("Licensing of XZ for Java", Pattern.DOTALL)),

{* ../../docs_src/middleware/tutorial001_py310.py hl[8:9,11,14] *}

/// tip | İpucu

Özel (proprietary) header'lar [`X-` prefix'i kullanılarak](https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers) eklenebilir, bunu aklınızda tutun.