![Swagger UI interaction](https://fastapi.tiangolo.com/img/index/index-03-swagger-02.png)

* <a href="https://github.com/Rebilly/ReDoc" class="external-link" target="_blank"><strong>ReDoc</strong></a> 提供結構性的文件，讓你可以在瀏覽器中查看。

![ReDoc](https://fastapi.tiangolo.com/img/index/index-06-redoc-02.png)


### 現代 Python

這一切都基於標準的 **Python 型別**宣告（感謝 Pydantic）。無需學習新的語法，只需使用標準的現代 Python。

labels.number_of_shards_for_doc=Number of Shards
labels.auto_expand_replicas_for_doc=Auto-expand Replicas
labels.clear_crawler_index=Crawler Index
labels.clear_crawler_index_button=Delete Crawler Index
labels.diagnostic_logs=Diagnostics
labels.download_diagnostic_logs_button=Download Logs
labels.reload_doc_index=Reload Document Index
labels.reload_doc_index_button=Reload
labels.plugin_title=Plugin
labels.plugin_list_name=Plugin List

    /**
     * Handles user logout and redirects to the login page.
     *
     * @return the HTML response after logout
     */
    @Execute
    public HtmlResponse index() {
        final OptionalThing<FessUserBean> userBean = getUserBean();
        activityHelper.logout(userBean);
        final String redirectUrl = userBean.map(user -> ComponentUtil.getSsoManager().logout(user)).orElse(null);

@SuppressWarnings("JUnit4ClassUsedInJUnit3")
public class ListGetTester<E> extends AbstractListTester<E> {
  public void testGet_valid() {
    // This calls get() on each index and checks the result:
    expectContents(createOrderedArray());
  }

  public void testGet_negative() {
    assertThrows(IndexOutOfBoundsException.class, () -> getList().get(-1));
  }

    AT5(5),
    ;

    final int index;

    CharAtFunction(int index) {
      this.index = index;
    }

    @Override
    public Character apply(String string) {
      return string.charAt(index);
    }
  }

  private static Ordering<String> byCharAt(int index) {
    return Ordering.<Character>natural().onResultOf(CharAtFunction.values()[index]);
  }

    AT5(5),
    ;

    final int index;

    CharAtFunction(int index) {
      this.index = index;
    }

    @Override
    public Character apply(String string) {
      return string.charAt(index);
    }
  }

  private static Ordering<String> byCharAt(int index) {
    return Ordering.<Character>natural().onResultOf(CharAtFunction.values()[index]);
  }

import org.codelibs.fess.opensearch.log.cbean.cq.bs.BsFavoriteLogCQ;
import org.dbflute.cbean.ConditionQuery;
import org.opensearch.action.search.SearchRequestBuilder;
import org.opensearch.index.query.QueryBuilder;

/**
 * @author ESFlute (using FreeGen)
 */
public class BsFavoriteLogCB extends EsAbstractConditionBean {

    // ===================================================================================

import org.codelibs.fess.opensearch.config.cbean.cq.bs.BsCrawlingInfoCQ;
import org.dbflute.cbean.ConditionQuery;
import org.opensearch.action.search.SearchRequestBuilder;
import org.opensearch.index.query.QueryBuilder;

/**
 * @author ESFlute (using FreeGen)
 */
public class BsCrawlingInfoCB extends EsAbstractConditionBean {

En este ejemplo usamos headers personalizados inventados `X-Key` y `X-Token`.

Pero en casos reales, al implementar seguridad, obtendrías más beneficios usando las [Utilidades de Seguridad integradas (el próximo capítulo)](../security/index.md){.internal-link target=_blank}.

///

## Errores de dependencias y valores de retorno { #dependencies-errors-and-return-values }

Puedes usar las mismas *funciones* de dependencia que usas normalmente.

    //                                                                      ==============
    /**
     * Show the index page.
     * @param form The search form.
     * @return The HTML response.
     */
    @Execute
    @Secured({ ROLE, ROLE + VIEW })
    public HtmlResponse index(final SearchForm form) {
        validate(form, messages -> {}, this::asDictIndexHtml);
        protwordsPager.clear();