### Use cases: external service { #use-cases-external-service }

An example could be that you have an external authentication provider that you need to call.

You send it a token and it returns an authenticated user.

This provider might be charging you per request, and calling it might take some extra time than if you had a fixed mock user for tests.

### Casos de uso: servicio externo { #use-cases-external-service }

Un ejemplo podría ser que tienes un proveedor de autenticación externo al que necesitas llamar.

Le envías un token y te devuelve un usuario autenticado.

Este proveedor podría estar cobrándote por cada request, y llamarlo podría tomar más tiempo adicional que si tuvieras un usuario mock fijo para los tests.

///

/// info | Примечание

В этом примере мы используем выдуманные пользовательские HTTP-заголовки `X-Key` и `X-Token`.

Но в реальных проектах, при внедрении системы безопасности, вы получите больше пользы используя интегрированные [средства защиты (следующая глава)](../security/index.md).

///

import org.apache.maven.model.Model;
import org.apache.maven.model.building.ModelBuildingRequest;
import org.apache.maven.model.building.ModelProblemCollector;

/**
 * Replaces expressions of the form <code>${token}</code> with their effective values. Effective values are basically
 * calculated from the elements of the model itself and the execution properties from the building request.
 *

        form.oicAuthServerUrl = fessConfig.getSystemProperty("oic.auth.server.url", "https://accounts.google.com/o/oauth2/auth");
        form.oicTokenServerUrl = fessConfig.getSystemProperty("oic.token.server.url", "https://accounts.google.com/o/oauth2/token");
        form.oicRedirectUrl = fessConfig.getSystemProperty("oic.redirect.url", StringUtil.EMPTY);
        form.oicScope = fessConfig.getSystemProperty("oic.scope", StringUtil.EMPTY);

            doColumn("parameter_name");
        }

        public void columnPermissions() {
            doColumn("permissions");
        }

        public void columnToken() {
            doColumn("token");
        }

        public void columnUpdatedBy() {
            doColumn("updatedBy");
        }

        public void columnUpdatedTime() {
            doColumn("updatedTime");
        }
    }

                                                key="labels.access_token_token"/></label>
                                        <div class="col-sm-9">
                                                ${f:h(token)}
                                        </div>
                                    </div>
                                </c:if>
                                <div class="form-group row">

   * Sec-Token-Binding}</a> header field name.
   *
   * @since 25.1
   */
  public static final String SEC_TOKEN_BINDING = "Sec-Token-Binding";

  /**
   * The HTTP <a href="https://datatracker.ietf.org/doc/html/draft-ietf-tokbind-ttrp">{@code
   * Sec-Provided-Token-Binding-ID}</a> header field name.
   *
   * @since 25.1
   */

It might also help avoid confusion for new developers that see an unused parameter in your code and could think it's unnecessary.

///

/// info

In this example we use invented custom headers `X-Key` and `X-Token`.

But in real cases, when implementing security, you would get more benefits from using the integrated [Security utilities (the next chapter)](../security/index.md).

///

          java-version: |
            11
            21

      - uses: graalvm/setup-graalvm@v1
        with:
          distribution: 'graalvm'
          java-version: 21
          github-token: ${{ secrets.GITHUB_TOKEN }}
          native-image-job-reports: true

      - name: Setup Gradle
        uses: gradle/actions/setup-gradle@v5

      - name: Run Checks