/// info

Webhooks are available in OpenAPI 3.1.0 and above, supported by FastAPI `0.99.0` and above.

///

## An app with webhooks { #an-app-with-webhooks }

When you create a **FastAPI** application, there is a `webhooks` attribute that you can use to define *webhooks*, the same way you would define *path operations*, for example with `@app.webhooks.post()`.

# Return a Response Directly { #return-a-response-directly }

When you create a **FastAPI** *path operation* you can normally return any data from it: a `dict`, a `list`, a Pydantic model, a database model, etc.

By default, **FastAPI** would automatically convert that return value to JSON using the `jsonable_encoder` explained in [JSON Compatible Encoder](../tutorial/encoder.md){.internal-link target=_blank}.

    public int selectCount(CBCall<SearchLogCB> cbLambda) {
        return facadeSelectCount(createCB(cbLambda));
    }

    public OptionalEntity<SearchLog> selectEntity(CBCall<SearchLogCB> cbLambda) {
        return facadeSelectEntity(createCB(cbLambda));
    }

    protected OptionalEntity<SearchLog> facadeSelectEntity(SearchLogCB cb) {

    public int selectCount(CBCall<FileConfigCB> cbLambda) {
        return facadeSelectCount(createCB(cbLambda));
    }

    public OptionalEntity<FileConfig> selectEntity(CBCall<FileConfigCB> cbLambda) {
        return facadeSelectEntity(createCB(cbLambda));
    }

    protected OptionalEntity<FileConfig> facadeSelectEntity(FileConfigCB cb) {

      }
    }
  }

  /** Resets the contents of navigableSet to have elements a, c, for the navigation tests. */
  protected void resetWithHole() {
    super.resetContainer(getSubjectGenerator().create(a, c));
    navigableSet = (NavigableSet<E>) getSet();
  }

  @CollectionFeature.Require(SUPPORTS_REMOVE)
  @CollectionSize.Require(ZERO)
  public void testEmptySetPollFirst() {

    super(false, true, true, true);
  }

  @Override
  TreeBasedTable<String, Integer, Character> makeTable() {
    TreeBasedTable<String, Integer, Character> table = TreeBasedTable.create();
    table.put("a", 1, 'a');
    return table;
  }

  @Override
  protected Map<String, Map<Integer, Character>> makePopulatedMap() {
    TreeBasedTable<String, Integer, Character> table = makeTable();

 * @deprecated since 4.0.0, use {@link org.apache.maven.api.services} instead
 */
@Deprecated(since = "4.0.0")
public class ProblemCollectorFactory {

    /**
     * The default implementation is not visible, create it with this factory
     *
     * @param problems starting set of problems, may be {@code null}
     * @return a new instance of a ProblemCollector
     */

        if (value == null || value.length() == 0) {
            replacement = '\u30fc';
        } else {
            replacement = value.charAt(0);
        }
    }

    @Override
    public Reader create(final Reader tokenStream) {
        return new ProlongedSoundMarkCharFilter(tokenStream, replacement);
    }

		<em class="fa fa-arrow-circle-left">
		<la:message key="labels.crud_button_back" />
	</button>
	<c:if test="${editable}">
	<button type="submit" class="btn btn-success" name="create"
		value="<la:message key="labels.crud_button_create" />">
		<em class="fa fa-plus">
		<la:message key="labels.crud_button_create" />
	</button>
	</c:if>
</c:if>
<c:if test="${crudMode == 2}">

# Query Parameter Models { #query-parameter-models }

If you have a group of **query parameters** that are related, you can create a **Pydantic model** to declare them.

This would allow you to **re-use the model** in **multiple places** and also to declare validations and metadata for all the parameters at once. 😎

/// note

This is supported since FastAPI version `0.115.0`. 🤓

///