* limitations under the License.
 */
package okhttp3

import okio.ByteString

/**
 * A non-blocking interface to a web socket. Use the [factory][WebSocket.Factory] to create
 * instances; usually this is [OkHttpClient].
 *
 * ## Web Socket Lifecycle
 *
 * Upon normal operation each web socket progresses through a sequence of states:
 *

        .Builder()
        .webSocketUpgrade(serverListener)
        .build(),
    )
    val webSocket: WebSocket = newWebSocket()
    clientListener.assertOpen()
    val server = serverListener.assertOpen()
    webSocket.send("Hello, WebSockets!")
    serverListener.assertTextMessage("Hello, WebSockets!")
    closeWebSockets(webSocket, server)
  }

  @Test
  fun binaryMessage() {
    webServer.enqueue(

  @Override public void onMessage(WebSocket webSocket, String text) {
    System.out.println("onMessage: " + text);
  }

  @Override public void onClosing(WebSocket webSocket, int code, String reason) {
    webSocket.close(1000, null);
    System.out.println("onClose (" + code + "): " + reason);
  }

  @Override public void onFailure(WebSocket webSocket, Throwable t, Response response) {

    client.dispatcher().executorService().shutdown();
  }

  @Override public void onOpen(WebSocket webSocket, Response response) {
    webSocket.send("Hello...");
    webSocket.send("...World!");
    webSocket.send(ByteString.decodeHex("deadbeef"));
    webSocket.close(1000, "Goodbye, World!");
  }

  @Override public void onMessage(WebSocket webSocket, String text) {
    System.out.println("MESSAGE: " + text);
  }

          text: String,
        ) {
          webSocket.send(text)
        }

        override fun onClosing(
          webSocket: WebSocket,
          code: Int,
          reason: String,
        ) {
          webSocket.close(1000, null)
          latch.countDown()
        }

        override fun onFailure(
          webSocket: WebSocket,
          t: Throwable,
          response: Response?,

    taskFaker.runTasks()
    server.webSocket!!.tearDown()
    client.webSocket!!.tearDown()
    taskFaker.close()
  }

  @Test
  fun close() {
    client.webSocket!!.close(1000, "Hello!")
    // This will trigger a close response.
    assertThat(server.processNextFrame()).isFalse()
    server.listener.assertClosing(1000, "Hello!")
    server.webSocket!!.finishReader()
    server.webSocket!!.close(1000, "Goodbye!")

{* ../../docs_src/websockets/tutorial001.py hl[2,6:38,41:43] *}

## Criando um `websocket`

Em sua aplicação **FastAPI**, crie um `websocket`:

{*../../docs_src/websockets/tutorial001.py hl[46:47]*}

/// note | Detalhes Técnicos

Você também poderia usar `from starlette.websockets import WebSocket`.

## `websocket` を作成する

**FastAPI** アプリケーションで、`websocket` を作成します。

{* ../../docs_src/websockets/tutorial001.py hl[1,46:47] *}

/// note | 技術詳細

`from starlette.websockets import WebSocket` を使用しても構いません.

**FastAPI** は開発者の利便性のために、同じ `WebSocket` を提供します。しかし、こちらはStarletteから直接提供されるものです。

///

## メッセージの送受信

WebSocketルートでは、 `await` を使ってメッセージの送受信ができます。

{* ../../docs_src/websockets/tutorial001.py hl[48:52] *}

   * messages.
   */
  open fun onOpen(
    webSocket: WebSocket,
    response: Response,
  ) {
  }

  /** Invoked when a text (type `0x1`) message has been received. */
  open fun onMessage(
    webSocket: WebSocket,
    text: String,
  ) {
  }

  /** Invoked when a binary (type `0x2`) message has been received. */
  open fun onMessage(
    webSocket: WebSocket,
    bytes: ByteString,
  ) {
  }

  /**

    webSocket: WebSocket,
    code: Int,
    reason: String,
  ) {
    Platform.get().log("[WS $name] onClosed $code", Platform.INFO, null)
    val delegate = delegate
    if (delegate != null) {
      this.delegate = null
      delegate.onClosed(webSocket, code, reason)
    } else {
      events.add(Closed(code, reason))
    }
  }

  override fun onFailure(
    webSocket: WebSocket,
    t: Throwable,