이러한 작업에는 다음이 포함됩니다.

* 작업을 수행한 후 전송되는 이메일 알림
    * 이메일 서버에 연결하고 이메일을 전송하는 것은 (몇 초 정도) "느린" 경향이 있으므로, 응답은 즉시 반환하고 이메일 알림은 백그라운드에서 전송하는 게 가능합니다.
* 데이터 처리:
    * 예를 들어 처리에 오랜 시간이 걸리는 데이터를 받았을 때 "Accepted" (HTTP 202)을 반환하고, 백그라운드에서 데이터를 처리할 수 있습니다.

## `백그라운드 작업` 사용

먼저 아래와 같이 `BackgroundTasks`를 임포트하고, `BackgroundTasks`를 _경로 작동 함수_ 에서 매개변수로 가져오고 정의합니다.

{* ../../docs_src/background_tasks/tutorial001.py hl[1,13] *}

        return doSelectEntity(xprepareCBAsPK(id), tp);
    }

    protected FileConfigCB xprepareCBAsPK(String id) {
        assertObjectNotNull("id", id);
        return newConditionBean().acceptPK(id);
    }

    protected <ENTITY extends FileConfig> OptionalEntity<ENTITY> doSelectOptionalByPK(String id, Class<? extends ENTITY> tp) {
        return createOptionalEntity(doSelectByPK(id, tp), id);
    }

        return doSelectEntity(xprepareCBAsPK(id), tp);
    }

    protected SearchLogCB xprepareCBAsPK(String id) {
        assertObjectNotNull("id", id);
        return newConditionBean().acceptPK(id);
    }

    protected <ENTITY extends SearchLog> OptionalEntity<ENTITY> doSelectOptionalByPK(String id, Class<? extends ENTITY> tp) {
        return createOptionalEntity(doSelectByPK(id, tp), id);
    }

   * href="https://url.spec.whatwg.org/#syntax-url-path-segment">URL path segments</a>. The returned
   * escaper escapes all non-ASCII characters, even though <a
   * href="https://url.spec.whatwg.org/#url-code-points">many of these are accepted in modern
   * URLs</a>. (<a href="https://url.spec.whatwg.org/#path-state">If the escaper were to leave these
   * characters unescaped, they would be escaped by the consumer at parse time, anyway.</a>)

        }

        @Test
        public void testConstructorWithMalformedUrl() {
            // Test that constructor throws MalformedURLException for completely invalid URL
            // Note: http:// URLs are actually accepted by the URL constructor but the protocol is changed to smb
            String invalidUrl = "not-a-valid-url";
            assertThrows(MalformedURLException.class, () -> new SmbFile(invalidUrl));
        }

        @Test

                context.terminal
                        .writer()
                        .println(messageBuilderFactory
                                .builder()
                                .warning("Values not accepted; not saving configuration.")
                                .build());
                return CANCELED;
            }
        }

        return OK;
    }

            return; // basically no way when called in Framework (because called when SpecifyColumn exists)
        }
        __specifiedProperties = newModifiedProperties();
        __specifiedProperties.accept(__modifiedProperties);
    }

    // ===================================================================================
    //                                                                Specified Properties

            return; // basically no way when called in Framework (because called when SpecifyColumn exists)
        }
        __specifiedProperties = newModifiedProperties();
        __specifiedProperties.accept(__modifiedProperties);
    }

    // ===================================================================================
    //                                                                Specified Properties

        final String name = fe.getName();
        if (this.nameFilter == null) {
            return true;
        }
        try {
            if (!this.nameFilter.accept(this.parent, name)) {
                return false;
            }
            return true;
        } catch (final CIFSException e) {
            log.error("Failed to apply name filter", e);
            return false;

Se uma requisição recebida não for validada corretamente, uma resposta `400` será enviada.

## `GZipMiddleware` { #gzipmiddleware }

Gerencia respostas GZip para qualquer requisição que inclua `"gzip"` no cabeçalho `Accept-Encoding`.

O middleware lidará com respostas padrão e de streaming.

{* ../../docs_src/advanced_middleware/tutorial003_py39.py hl[2,6] *}

Os seguintes argumentos são suportados: