# Optional Path parameters are not supported...

/// tip | Совет

Обратите внимание, что в этом примере мы объявляем path-параметр вместе с параметром `Request`.

Таким образом, path-параметр будет извлечён, валидирован, преобразован к указанному типу и задокументирован в OpenAPI.

Точно так же вы можете объявлять любые другие параметры как обычно и, дополнительно, получать `Request`.

 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
package org.apache.maven.cling.invoker.mvnup.goals;

import java.nio.file.Path;
import java.util.Map;
import java.util.Optional;

import eu.maveniverse.domtrip.Document;
import org.apache.maven.api.cli.mvnup.UpgradeOptions;
import org.apache.maven.cling.invoker.mvnup.UpgradeContext;

/**

In this case, this `__call__` is what **FastAPI** will use to check for additional parameters and sub-dependencies, and this is what will be called to pass a value to the parameter in your *path operation function* later.

## Parameterize the instance { #parameterize-the-instance }

And now, we can use `__init__` to declare the parameters of the instance that we can use to "parameterize" the dependency:

/// tip | Consejo

Como Pydantic lo serializará en el lado de **Rust**, obtendrás un **rendimiento** mucho mayor que si no declaras un tipo de retorno.

///

### No async *path operation functions* { #non-async-path-operation-functions }

También puedes usar funciones `def` normales (sin `async`), y usar `yield` de la misma manera.

FastAPI se asegurará de ejecutarlo correctamente para que no bloquee el event loop.

/// tip | Consejo

Como Pydantic lo serializará en el lado de **Rust**, obtendrás un **rendimiento** mucho mayor que si no declaras un tipo de retorno.

///

### *path operation functions* no-async { #non-async-path-operation-functions }

También puedes usar funciones `def` regulares (sin `async`), y usar `yield` de la misma forma.

FastAPI se asegurará de que se ejecute correctamente para que no bloquee el event loop.

/// tip

As Pydantic will serialize it in the **Rust** side, you will get much higher **performance** than if you don't declare a return type.

///

### Non-async *path operation functions* { #non-async-path-operation-functions }

You can also use regular `def` functions (without `async`), and use `yield` the same way.

FastAPI will make sure it's run correctly so that it doesn't block the event loop.

/// tip

As Pydantic will serialize it in the **Rust** side, you will get much higher **performance** than if you don't declare a return type.

///

### Non-async *path operation functions* { #non-async-path-operation-functions }

You can also use regular `def` functions (without `async`), and use `yield` the same way.

FastAPI will make sure it's run correctly so that it doesn't block the event loop.

			logger.Fatal(fmt.Errorf("invalid TLS arguments provided missing private key --ftp=\"tls-private-key=path/to/private.key\""), "unable to start FTP server")
		}

		if tlsPrivateKey != "" && tlsPublicCert == "" {
			logger.Fatal(fmt.Errorf("invalid TLS arguments provided missing public cert --ftp=\"tls-public-cert=path/to/public.crt\""), "unable to start FTP server")
		}
		if port == 0 {

Sua API quase sempre precisa enviar um corpo na **resposta**. Mas os clientes não necessariamente precisam enviar **corpos de requisição** o tempo todo, às vezes eles apenas requisitam um path, talvez com alguns parâmetros de consulta, mas não enviam um corpo.

Para declarar um corpo da **requisição**, você utiliza os modelos do [Pydantic](https://docs.pydantic.dev/) com todos os seus poderes e benefícios.