{* ../../docs_src/path_params_numeric_validations/tutorial001_an_py310.py hl[10] *}

/// note | Nota

Un parámetro de path siempre es requerido ya que tiene que formar parte del path. Incluso si lo declaras con `None` o le asignas un valor por defecto, no afectará en nada, siempre será requerido.

///

## Ordena los parámetros como necesites { #order-the-parameters-as-you-need }

/// tip | Consejo

nombre de la licencia utilizada para la API.</td></tr><tr><td><code>identifier</code></td><td><code>str</code></td><td>Una expresión de licencia [SPDX](https://spdx.org/licenses/) para la API. El campo <code>identifier</code> es mutuamente excluyente del campo <code>url</code>. <small>Disponible desde OpenAPI 3.1.0, FastAPI 0.99.0.</small></td></tr><tr><td><code>url</code></td><td><code>str</code></td><td>Una URL a la licencia utilizada para la API. DEBE tener el formato de una URL.</td></tr></tbod...

		if os.IsNotExist(err) {
			return nil
		}
		return err
	}

	if err = target.send(eventData); err != nil {
		return err
	}

	// Delete the event from store.
	return target.store.Del(key)
}

// Save - saves the events to the store if queuestore is configured, which will
// be replayed when the mqtt connection is active.
func (target *MQTTTarget) Save(eventData event.Event) error {

		}
		err = target.sendMultiple(events)
	}
	if err != nil {
		if isKafkaConnErr(err) {
			return store.ErrNotConnected
		}
		return err
	}
	// Delete the event from store.
	return target.store.Del(key)
}

func (target *KafkaTarget) toProducerMessage(eventData event.Event) (*sarama.ProducerMessage, error) {
	objectName, err := url.QueryUnescape(eventData.S3.Object.Key)
	if err != nil {
		return nil, err
	}

	}

	if err := target.send(eventData); err != nil {
		if xnet.IsConnRefusedErr(err) {
			return store.ErrNotConnected
		}
		return err
	}

	// Delete the event from store.
	return target.store.Del(key)
}

// Close - releases the resources used by the pool.
func (target *RedisTarget) Close() error {
	close(target.quitCh)
	if target.pool != nil {
		return target.pool.Close()
	}
	return nil
}

	}

	if err := target.send(eventData); err != nil {
		if IsConnErr(err) {
			return store.ErrNotConnected
		}
		return err
	}

	// Delete the event from store.
	return target.store.Del(key)
}

// Close - closes underneath connections to PostgreSQL database.
func (target *PostgreSQLTarget) Close() error {
	close(target.quitCh)
	if target.updateStmt != nil {

			return nil
		}
		return eErr
	}

	if err := target.send(eventData, ch, confirms); err != nil {
		return err
	}

	// Delete the event from store.
	return target.store.Del(key)
}

// Close - does nothing and available for interface compatibility.
func (target *AMQPTarget) Close() error {
	close(target.quitCh)
	if target.conn != nil {
		return target.conn.Close()
	}

	}

	if err := target.send(eventData); err != nil {
		if IsConnErr(err) {
			return store.ErrNotConnected
		}
		return err
	}

	// Delete the event from store.
	return target.store.Del(key)
}

// Close - closes underneath connections to MySQL database.
func (target *MySQLTarget) Close() error {
	close(target.quitCh)
	if target.updateStmt != nil {

		return err
	}
	atomic.AddInt64(&h.totalMessages, 1)
	err = h.send(auditEntry)
	if err != nil {
		atomic.AddInt64(&h.failedMessages, 1)
		return err
	}
	// Delete the event from store.
	return h.store.Del(key)
}

// Cancel - cancels the target
func (h *Target) Cancel() {
	// If queuestore is configured, cancel it's context to
	// stop the replay go-routine.
	if h.store != nil {
		h.storeCtxCancel()
	}

	if !compareSignatureV2(gotSignature, expectedSignature) {
		return ErrSignatureDoesNotMatch
	}

	r.Form.Del(xhttp.Expires)

	return ErrNone
}

func getReqAccessKeyV2(r *http.Request) (auth.Credentials, bool, APIErrorCode) {
	if accessKey := r.Form.Get(xhttp.AmzAccessKeyID); accessKey != "" {