* [requestBody] may return data after this call; that is the buffered data received before this
   * stream was canceled.
   *
   * This does nothing if [requestBody] and [responseBody] are already closed.
   *
   * For HTTP/2 this sends the [CANCEL](https://datatracker.ietf.org/doc/html/rfc7540#section-7)
   * error code.
   */
  fun cancel()

@app.websocket("/ws")
async def get_value_by_ws(
    websocket: WebSocket, value: int = Depends(extract_value_from_http_connection)
):
    await websocket.accept()
    await websocket.send_json(value)
    await websocket.close()


client = TestClient(app)


def test_value_extracting_by_http():
    response = client.get("/http")
    assert response.status_code == 200
    assert response.json() == 42

{* ../../docs_src/cookie_params/tutorial001_an_py310.py hl[9]*}

/// note | "Detalles Técnicos"

`Cookie` es una clase "hermana" de `Path` y `Query`. También hereda de la misma clase común `Param`.

Pero recuerda que cuando importas `Query`, `Path`, `Cookie`  y otros de `fastapi`, en realidad son funciones que devuelven clases especiales.

///

/// info

        final EsUrlFilterService urlFilterService = ComponentUtil.getComponent(EsUrlFilterService.class);
        final EsUrlQueueService urlQueueService = ComponentUtil.getComponent(EsUrlQueueService.class);
        final EsDataService dataService = ComponentUtil.getComponent(EsDataService.class);

        try {
            // clear url filter
            urlFilterService.delete(sid);

      println("PROTOCOL ${response.protocol}")
      var line: String?
      while (response.body.source().readUtf8Line().also { line = it } != null) {
        println(line)
      }
    } finally {
      response.body.close()
    }
    client.connectionPool.evictAll()
  }

        client1_says = "Client #1234 says: Hello from 1234"
        assert data2 == client1_says
        data1 = connection.receive_text()
        assert data1 == client1_says
        connection_two.close()
        data1 = connection.receive_text()

from contextvars import ContextVar

import peewee

DATABASE_NAME = "test.db"
db_state_default = {"closed": None, "conn": None, "ctx": None, "transactions": None}
db_state = ContextVar("db_state", default=db_state_default.copy())


class PeeweeConnectionState(peewee._ConnectionState):
    def __init__(self, **kwargs):
        super().__setattr__("_state", db_state)
        super().__init__(**kwargs)

    def __setattr__(self, name, value):

        exception.expect(IORuntimeException.class);
        exception.expectMessage(is("[ECL0040]IOException occurred, because java.io.IOException: load"));
        final Properties properties = new IOExceptionOccurProperties();
        PropertiesUtil.load(properties, url);
    }

    private static class IOExceptionOccurProperties extends Properties {

        /**
         *

			// If the cniListener exits, at least we should record an error log
			log.Errorf("CNI listener server exiting unexpectedly: %v", err)
		}
	}()

	context.AfterFunc(s.ctx, func() {
		if err := s.cniListenServer.Close(); err != nil {
			log.Errorf("CNI listen server terminated with error: %v", err)
		} else {
			log.Debug("CNI listen server terminated")
		}
	})
	return nil
}

    }
  }

  private static class FileByteSourceFactory extends FileFactory implements ByteSourceFactory {

    @Override
    public ByteSource createSource(byte[] bytes) throws IOException {
      checkNotNull(bytes);
      File file = createFile();
      OutputStream out = new FileOutputStream(file);
      try {
        out.write(bytes);
      } finally {
        out.close();
      }