Então, com essa declaração de tipo, o **FastAPI** dá pra você um <abbr title="convertendo a string que veio do request HTTP em um dado Python">"parsing"</abbr> automático no request .

## Validação de dados

/// tip | Consejo

Verás qué otras "cosas", además de funciones, pueden usarse como dependencias en el próximo capítulo.

///

Cada vez que llega un nuevo request, **FastAPI** se encargará de:

* Llamar a tu función de dependencia ("dependable") con los parámetros correctos.
* Obtener el resultado de tu función.
* Asignar ese resultado al parámetro en tu *path operation function*.

    server.useHttps(sslContext.getSocketFactory(), false);
    server.setDispatcher(this);
    server.start(port);
  }

  @Override public MockResponse dispatch(RecordedRequest request) {
    String path = request.getPath();
    try {
      if (!path.startsWith("/") || path.contains("..")) throw new FileNotFoundException();

      File file = new File(root + path);
      return file.isDirectory()

      - release
      - release7x
      - release8x

permissions:
  issues: write

jobs:
  closeIssueOnPrMerge:
    runs-on: ubuntu-latest
    steps:
      - name: Closes issues related to a merged pull request.
        uses: ldez/gha-mjolnir@df0e84242364946fa3ad4e7556510e8086ad681a
        env:

 * governing permissions and limitations under the License.
 */
package org.codelibs.fess.app.web.api.admin.elevateword;

import org.codelibs.fess.app.web.admin.elevateword.CreateForm;

/**
 * Request body for creating elevate word via REST API.
 * Extends CreateForm to inherit validation and field definitions.
 */
public class CreateBody extends CreateForm {

    /**
     * Creates a new CreateBody instance.

 * governing permissions and limitations under the License.
 */
package org.codelibs.fess.app.web.api.admin.fileconfig;

import org.codelibs.fess.app.web.admin.fileconfig.CreateForm;

/**
 * Request body for creating file configuration via REST API.
 * Extends CreateForm to inherit validation and field definitions.
 */
public class CreateBody extends CreateForm {

    /**
     * Creates a new CreateBody instance.

 * governing permissions and limitations under the License.
 */
package org.codelibs.fess.app.web.api.admin.relatedcontent;

import org.codelibs.fess.app.web.api.admin.BaseSearchBody;

/**
 * Search request body for related content administration API.
 */
public class SearchBody extends BaseSearchBody {

    /**
     * Default constructor.
     */
    public SearchBody() {
        super();
    }

 * governing permissions and limitations under the License.
 */
package org.codelibs.fess.app.web.api.admin.scheduler;

import org.codelibs.fess.app.web.admin.scheduler.CreateForm;

/**
 * Request body for creating scheduler via REST API.
 * Extends CreateForm to inherit validation and field definitions.
 */
public class CreateBody extends CreateForm {

    /**
     * Creates a new CreateBody instance.
     */

 * governing permissions and limitations under the License.
 */
package org.codelibs.fess.app.web.api.admin.dataconfig;

import org.codelibs.fess.app.web.admin.dataconfig.CreateForm;

/**
 * Request body for creating data config via REST API.
 * Extends CreateForm to inherit validation and field definitions.
 */
public class CreateBody extends CreateForm {

    /**
     * Creates a new CreateBody instance.

 * governing permissions and limitations under the License.
 */
package org.codelibs.fess.app.web.api.admin.dict.stemmeroverride;

import org.codelibs.fess.app.web.admin.dict.stemmeroverride.CreateForm;

/**
 * Request body for creating stemmer override dictionary via REST API.
 * Extends CreateForm to inherit validation and field definitions.
 */
public class CreateBody extends CreateForm {

    /**