A **FastAPI** fornece o mesmo `WebSocket` diretamente apenas como uma conveniência para você, o desenvolvedor. Mas ele vem diretamente do Starlette.

///

## Aguarde mensagens e envie mensagens { #await-for-messages-and-send-messages }

Em sua rota WebSocket você pode esperar (`await`) por mensagens e enviar mensagens.

{* ../../docs_src/websockets/tutorial001_py39.py hl[48:52] *}

Você pode receber e enviar dados binários, de texto e JSON.

                    .map(m -> "\"" + m + "\"")
                    .collect(joining(", "));
            String message = String.format(
                    "Expected ProjectBuildingResult to have problem message containing <%s> but had messages <%s>",
                    problemMessage, actualMessages);
            assertTrue(false, message);
        }

        return this;
    }

    // Helper method for backward compatibility

**FastAPI** proporciona el mismo `WebSocket` directamente solo como una conveniencia para ti, el desarrollador. Pero viene directamente de Starlette.

///

## Esperar mensajes y enviar mensajes { #await-for-messages-and-send-messages }

En tu ruta de WebSocket puedes `await` para recibir mensajes y enviar mensajes.

{* ../../docs_src/websockets/tutorial001_py39.py hl[48:52] *}

Puedes recibir y enviar datos binarios, de texto y JSON.

            if (verbose) {
              println(record.message)
              println(record.parameters[0])
            }

            // JSSE logs additional messages as parameters that are not referenced in the log message.
            val parameter = parameters[0] as String

            if (message == "Produced ClientHello handshake message") {

     *
     * @param message
     */
    public MojoFailureException(String message) {
        super(message);
    }

    /**
     * Construct a new <code>MojoFailureException</code> exception wrapping an underlying <code>Throwable</code>
     * and providing a <code>message</code>.
     *
     * @param message
     * @param cause
     * @since 2.0.9
     */

     * and providing a {@code message}.
     */
    public MojoException(String message, Throwable cause) {
        super(message, cause);
    }

    /**
     * Constructs a new {@code MojoException} providing a {@code message}.
     */
    public MojoException(String message) {
        super(message);
    }

    /**

**FastAPI** stellt den gleichen `WebSocket` direkt zur Verfügung, als Annehmlichkeit für Sie, den Entwickler. Er kommt aber direkt von Starlette.

///

## Nachrichten erwarten und Nachrichten senden { #await-for-messages-and-send-messages }

In Ihrer WebSocket-Route können Sie Nachrichten `await`en und Nachrichten senden.

{* ../../docs_src/websockets/tutorial001_py39.py hl[48:52] *}

Sie können Binär-, Text- und JSON-Daten empfangen und senden.

import org.junit.jupiter.api.extension.ExtensionContext
import org.junit.rules.TestRule
import org.junit.runner.Description
import org.junit.runners.model.Statement

/**
 * A log handler that records which log messages were published so that a calling test can make
 * assertions about them.
 */
class TestLogHandler(
  private val logger: Logger,
) : TestRule,
  BeforeEachCallback,
  AfterEachCallback {

    // Empty server to client message.
    val message3 = ""
    server.send(message3)
    clientListener.assertTextMessage(message3)

    // Empty client to server message.
    val message4 = ""
    client.send(message4)
    serverListener.assertTextMessage(message4)

    // Server to client message that shares context with message1.
    val message5 = message1 + message1

        this.buildEventListener = buildEventListener;
        MavenSimpleLogger.setLogSink(this::accept);
    }

    protected void accept(String message) {
        String projectId = MDC.get(KEY_PROJECT_ID);
        buildEventListener.projectLogMessage(projectId, message);
    }

    @Override
    public void close() throws Exception {
        MavenSimpleLogger.setLogSink(null);
    }