### Конкурентность лучше параллелизма? { #is-concurrency-better-than-parallelism }

Нет! Мораль истории не в этом.

/// info | 기술 세부사항

`Security`는 실제로 `Depends`의 서브클래스이며, 나중에 보게 될 추가 매개변수 하나만 더 있습니다.

하지만 `Depends` 대신 `Security`를 사용하면, **FastAPI**는 보안 스코프를 선언할 수 있음을 알고 내부적으로 이를 사용하며, OpenAPI로 API를 문서화할 수 있습니다.

하지만 `fastapi`에서 `Query`, `Path`, `Depends`, `Security` 등을 import할 때, 이것들은 실제로 특수한 클래스를 반환하는 함수입니다.

///

## `SecurityScopes` 사용하기 { #use-securityscopes }

이제 의존성 `get_current_user`를 업데이트합니다.

이는 위의 의존성들이 사용하는 것입니다.

 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
 * either express or implied. See the License for the specific language
 * governing permissions and limitations under the License.
 */
package org.codelibs.fess.query;

import java.util.concurrent.atomic.AtomicInteger;

import org.codelibs.fess.mylasta.direction.FessConfig;
import org.codelibs.fess.unit.UnitFessTestCase;
import org.codelibs.fess.util.ComponentUtil;

 * @since 2.0
 */
@DoNotMock("Use ImmutableMultimap, HashMultimap, or another implementation")
@GwtCompatible
public interface Multimap<K extends @Nullable Object, V extends @Nullable Object> {
  // Query Operations

  /**
   * Returns the number of key-value pairs in this multimap.
   *
   * <p><b>Note:</b> this method does not return the number of <i>distinct keys</i> in the multimap,

Mais en utilisant `Security` au lieu de `Depends`, **FastAPI** saura qu’il peut déclarer des scopes de sécurité, les utiliser en interne et documenter l’API avec OpenAPI.

Cependant, lorsque vous importez `Query`, `Path`, `Depends`, `Security` et d’autres depuis `fastapi`, ce sont en fait des fonctions qui renvoient des classes spéciales.

///

## Utiliser `SecurityScopes` { #use-securityscopes }

 *         .catching(DBException.class, e -> "no user", directExecutor())
 *         .finishToFuture();
 * }
 *
 * In this example, when the {@code userName} {@link Future} is done, the transaction and the query
 * result cursor will both be closed, even if the operation is cancelled or fails.
 *
 * <h4>Manually closing</h4>
 *
 * If you want to close the captured objects manually, after you've used the final result, call

		return errCode
	}

	clientETag, err := etag.FromContentMD5(r.Header)
	if err != nil {
		return ErrInvalidDigest
	}

	// Extract either 'X-Amz-Content-Sha256' header or 'X-Amz-Content-Sha256' query parameter (if V4 presigned)
	// Do not verify 'X-Amz-Content-Sha256' if skipSHA256.
	var contentSHA256 []byte
	if skipSHA256 := skipContentSha256Cksum(r); !skipSHA256 && isRequestPresignedSignatureV4(r) {

A primeira sempre será usada, já que o path corresponde primeiro.

## Valores predefinidos { #predefined-values }

Se você tem uma *operação de rota* que recebe um *parâmetro de path*, mas quer que os valores válidos possíveis do *parâmetro de path* sejam predefinidos, você pode usar um <abbr title="Enumeração">`Enum`</abbr> padrão do Python.

### Crie uma classe `Enum` { #create-an-enum-class }

   * by applying the given {@code AsyncFunction} to the result of the original {@code Future}.
   * Example usage:
   *
   * {@snippet :
   * FluentFuture<RowKey> rowKeyFuture = FluentFuture.from(indexService.lookUp(query));
   * ListenableFuture<QueryResult> queryFuture =
   *     rowKeyFuture.transformAsync(dataService::readFuture, executor);
   * }
   *

		}
	}

	// Parse date header.
	var err error
	date, err = time.Parse(iso8601Format, dateStr)
	if err != nil {
		return cred, "", "", time.Time{}, ErrMalformedDate
	}

	// Query string.
	queryStr := req.Form.Encode()

	// Get canonical request.
	canonicalRequest := getCanonicalRequest(extractedSignedHeaders, payload, queryStr, req.URL.Path, req.Method)