### Впровадження залежностей { #dependency-injection }

FastAPI містить надзвичайно просту у використанні, але надзвичайно потужну систему <dfn title='також відоме як «components», «resources», «services», «providers»'><strong>Впровадження залежностей</strong></dfn>.

* Навіть залежності можуть мати власні залежності, утворюючи ієрархію або **«граф» залежностей**.
* Усе **автоматично обробляється** фреймворком.

        } catch (final Exception e) {
            return url;
        }
    }

    /**
     * Gets the character encoding for a parent URL from cache or data service.
     * Caches encoding information to improve performance on subsequent requests.
     *
     * @param parentUrl the parent URL to get encoding for
     * @param sessionId the session ID for the crawling session

import org.apache.logging.log4j.Logger;
import org.codelibs.core.lang.StringUtil;
import org.codelibs.core.security.MessageDigestUtil;
import org.codelibs.fess.Constants;
import org.codelibs.fess.app.service.CrawlingInfoService;
import org.codelibs.fess.exception.FessSystemException;
import org.codelibs.fess.mylasta.direction.FessConfig;
import org.codelibs.fess.opensearch.client.SearchEngineClient;

        // Transient errors
        BUSY("Server busy", ErrorCategory.TRANSIENT, true), TRY_AGAIN("Try again later", ErrorCategory.TRANSIENT,
                true), SERVICE_UNAVAILABLE("Service temporarily unavailable", ErrorCategory.TRANSIENT, true),

        // Generic errors
        UNKNOWN_ERROR("Unknown error", ErrorCategory.UNKNOWN, false), INTERNAL_ERROR("Internal error", ErrorCategory.UNKNOWN, false);

Their sponsorship also demonstrates a strong commitment to the FastAPI **community** (you), showing that they care not only about offering a **great service** but also about supporting a **robust and thriving framework**, FastAPI. 🙇

For example, you might want to try:

* [Speakeasy](https://speakeasy.com/editor?utm_source=fastapi+repo&utm_medium=github+sponsorship)

| `version` | `string` | The version of the API. This is the version of your own application, not of OpenAPI. For example `2.5.0`. |
| `terms_of_service` | `str` | A URL to the Terms of Service for the API. If provided, this has to be a URL. |

import org.apache.logging.log4j.Logger;
import org.codelibs.fess.Constants;
import org.codelibs.fess.annotation.Secured;
import org.codelibs.fess.app.pager.CrawlingInfoPager;
import org.codelibs.fess.app.service.CrawlingInfoService;
import org.codelibs.fess.app.web.CrudMode;
import org.codelibs.fess.app.web.base.FessAdminAction;
import org.codelibs.fess.helper.ProcessHelper;
import org.codelibs.fess.util.RenderDataUtil;

import org.apache.logging.log4j.Logger;
import org.codelibs.core.lang.StringUtil;
import org.codelibs.fess.Constants;
import org.codelibs.fess.app.pager.DataConfigPager;
import org.codelibs.fess.app.service.DataConfigService;
import org.codelibs.fess.app.web.CrudMode;
import org.codelibs.fess.app.web.api.ApiResult;
import org.codelibs.fess.app.web.api.ApiResult.ApiConfigResponse;

 */
package org.codelibs.fess.app.web.admin.failureurl;

import org.codelibs.fess.Constants;
import org.codelibs.fess.annotation.Secured;
import org.codelibs.fess.app.pager.FailureUrlPager;
import org.codelibs.fess.app.service.FailureUrlService;
import org.codelibs.fess.app.web.CrudMode;
import org.codelibs.fess.app.web.base.FessAdminAction;
import org.codelibs.fess.util.RenderDataUtil;
import org.lastaflute.web.Execute;

		return false, err
	}
	return target.isActive()
}

// errNotConnected - indicates that the target connection is not active.
var errNotConnected = errors.New("not connected to target server/service")

func (target *WebhookTarget) isActive() (bool, error) {
	ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
	defer cancel()