open fun header(
      name: String,
      value: String,
    ) = commonHeader(name, value)

    /**
     * Adds a header with [name] and [value]. Prefer this method for multiply-valued
     * headers like "Cookie".
     *
     * Note that for some headers including `Content-Length` and `Content-Encoding`,
     * OkHttp may replace [value] with a header derived from the request body.
     */
    open fun addHeader(

      Header("content-language", ""),
      Header("content-length", ""),
      Header("content-location", ""),
      Header("content-range", ""),
      Header("content-type", ""),
      Header("cookie", ""),
      Header("date", ""),
      Header("etag", ""),
      Header("expect", ""),
      Header("expires", ""),
      Header("from", ""),
      Header("host", ""),
      Header("if-match", ""),

 * Fix: Do not directly support any authentication schemes other than "Basic".
 * Fix: Respect read timeouts on recycled connections.
 * Fix: Transmit multiple cookie values as a single header with delimiter.
 * Fix: Ensure `null` is never returned from a connection's `getHeaderFields()`.
 * Fix: Persist proper `Content-Encoding` header to cache for GZip responses.

And all of them will use the same WebSocket connection.

## Using `Depends` and others

In WebSocket endpoints you can import from `fastapi` and use:

* `Depends`
* `Security`
* `Cookie`
* `Header`
* `Path`
* `Query`

They work the same way as for other FastAPI endpoints/*path operations*:

//// tab | Python 3.10+

```Python hl_lines="68-69  82"

複数のメッセージを送信（および受信）できます。

<img src="/img/tutorial/websockets/image04.png">

そして、これらの通信はすべて同じWebSocket接続を使用します。

## 依存関係

WebSocketエンドポイントでは、`fastapi` から以下をインポートして使用できます。

* `Depends`
* `Security`
* `Cookie`
* `Header`
* `Path`
* `Query`

これらは、他のFastAPI エンドポイント/*path operation* の場合と同じように機能します。

```Python hl_lines="58-65  68-83"
{!../../docs_src/websockets/tutorial002.py!}
```

/// info | "情報"

* APIキー：
     * ヘッダー
     * クエリパラメータ
     * クッキー、等

さらに、Starletteのすべてのセキュリティ機能も含みます（**セッションCookie**を含む）。

これらは、システム、データストア、リレーショナルデータベース、NoSQLデータベースなどと簡単に統合できる再利用可能なツールとコンポーネントとして構築されています。

### 依存性の注入（Dependency Injection）

pkg net, method (*UDPConn) WriteToUDPAddrPort([]uint8, netip.AddrPort) (int, error)
pkg net, type Error interface, Temporary //deprecated
pkg net/http, func MaxBytesHandler(Handler, int64) Handler
pkg net/http, method (*Cookie) Valid() error
pkg net/netip, func AddrFrom16([16]uint8) Addr
pkg net/netip, func AddrFrom4([4]uint8) Addr
pkg net/netip, func AddrFromSlice([]uint8) (Addr, bool)
pkg net/netip, func AddrPortFrom(Addr, uint16) AddrPort

import mockwebserver3.SocketPolicy.ResetStreamAtStart
import mockwebserver3.SocketPolicy.StallSocketAtStart
import okhttp3.Cache
import okhttp3.Call
import okhttp3.Callback
import okhttp3.Connection
import okhttp3.Cookie
import okhttp3.Credentials.basic
import okhttp3.EventListener
import okhttp3.Headers.Companion.headersOf
import okhttp3.HttpUrl.Companion.toHttpUrl
import okhttp3.Interceptor
import okhttp3.MediaType

    continuation.length = continuation.left
    continuation.padding = padding
    continuation.flags = flags
    continuation.streamId = streamId

    // TODO: Concat multi-value headers with 0x0, except COOKIE, which uses 0x3B, 0x20.
    // http://tools.ietf.org/html/draft-ietf-httpbis-http2-17#section-8.1.2.5
    hpackReader.readHeaders()
    return hpackReader.getAndResetHeaderList()
  }

  @Throws(IOException::class)

-python-framework-2n10 title: Introduction to the fastapi python framework - author: Nils de Bruin author_link: https://medium.com/@nilsdebruin link: https://medium.com/data-rebels/fastapi-how-to-add-basic-and-cookie-authentication-a45c85ef47d3 title: FastAPI — How to add basic and cookie authentication - author: Nils de Bruin author_link: https://medium.com/@nilsdebruin link: https://medium.com/data-rebels/fastapi-google-as-an-external-authentication-provider-3a527672cf33 title: FastAPI — Google...