{* ../../docs_src/background_tasks/tutorial002_an_py310.py hl[13,15,22,25] *}

Bu örnekte, response gönderildikten *sonra* mesajlar `log.txt` dosyasına yazılacaktır.

Request’te bir query varsa, log’a bir arka plan göreviyle yazılır.

Ardından *path operation function* içinde oluşturulan başka bir arka plan görevi, `email` path parametresini kullanarak bir mesaj yazar.

## Teknik Detaylar { #technical-details }

{* ../../docs_src/background_tasks/tutorial002_an_py310.py hl[13,15,22,25] *}

В этом примере сообщения будут записаны в файл `log.txt` после отправки ответа.

Если в запросе была строка запроса (query), она будет записана в лог фоновой задачей.

Затем другая фоновая задача, созданная в функции‑обработчике пути, запишет сообщение, используя path‑параметр `email`.

## Технические детали { #technical-details }

						</div>
					</fieldset>
				</div>
			</div>
		</main>
		<jsp:include page="footer.jsp" />
	</la:form>
	<input type="hidden" id="contextPath" value="${contextPath}" />
	<script src="${fe:url('/js/jquery-3.7.1.min.js')}"></script>
	<script src="${fe:url('/js/popper.min.js')}"></script>
	<script src="${fe:url('/js/bootstrap.min.js')}"></script>
	<script src="${fe:url('/js/suggestor.js')}"></script>

# Maximum scan for query highlight boundaries.
query.highlight.boundary.max.scan=20
# Scanner type for query highlight boundaries.
query.highlight.boundary.scanner=chars
# Encoder type for query highlighting.
query.highlight.encoder=default
# Whether to force source for query highlighting.
query.highlight.force.source=false
# Fragmenter type for query highlighting.
query.highlight.fragmenter=span
# Offset for query highlight fragments.

			query:      "select SUM(s.id) from s3object s Where 2 in s.numbers[*] or 'some' in s.synonyms[*]",
			wantResult: `{"_1":3}`,
		},
		{
			name:  "bignum-1",
			query: `SELECT id from s3object s WHERE s.id <= 9223372036854775807`,
			wantResult: `{"id":0}
{"id":1}
{"id":2}
{"id":3}`,
		},
		{
			name:  "bignum-2",

* Der _Pfad_ `/items/{item_id}` hat einen _Pfad-Parameter_ `item_id`, der ein `int` sein sollte.
* Der _Pfad_ `/items/{item_id}` hat einen optionalen `str`-_Query-Parameter_ `q`.

### Interaktive API-Dokumentation { #interactive-api-docs }

Gehen Sie nun auf [http://127.0.0.1:8000/docs](http://127.0.0.1:8000/docs).

{* ../../docs_src/background_tasks/tutorial002_an_py310.py hl[13,15,22,25] *}

En este ejemplo, los mensajes se escribirán en el archivo `log.txt` *después* de que se envíe el response.

Si hay un query en el request, se escribirá en el log en una tarea en segundo plano.

Y luego otra tarea en segundo plano generada en la *path operation function* escribirá un mensaje usando el parámetro de path `email`.

     * @return the parsed Query object
     * @throws QueryParseException if the query cannot be parsed
     */
    public Query parse(final String query) {
        return filterChain.parse(query);
    }

    /**
     * Creates a new Lucene query parser with the current configuration.
     * The parser is configured with the default field, analyzer, wildcard settings,
     * and default operator.
     *

    /**
     * Gets the class name of the query this command handles.
     * @return The query class name.
     */
    protected abstract String getQueryClassName();

    /**
     * Registers this query command with the query processor.
     * Associates this command with its query class name in the processor.
     */

                "Unknown q: " + query.getClass() + " => " + query);
    }

    /**
     * Converts a phrase query to a query builder.
     *
     * @param context the query context
     * @param phraseQuery the phrase query
     * @param boost the boost factor
     * @return the query builder
     */