```Python
q: Union[str, None] = Query(default=None, max_length=50)
```

Cela va valider les données, montrer une erreur claire si ces dernières ne sont pas valides, et documenter le paramètre dans le schéma `OpenAPI` de cette *path operation*.

## Rajouter plus de validation

Vous pouvez aussi rajouter un second paramètre `min_length` :

  /**
   * <a href="https://en.wikipedia.org/wiki/SFNT">Spline or Scalable Font Format</a> (SFNT). <a
   * href="https://tools.ietf.org/html/rfc8081">RFC 8081</a> declares this to be the correct media
   * type for SFNT, but {@link #SFNT application/font-sfnt} may be necessary in certain situations
   * for compatibility.
   *
   * @since 30.0
   */

  /**
   * <a href="https://en.wikipedia.org/wiki/SFNT">Spline or Scalable Font Format</a> (SFNT). <a
   * href="https://tools.ietf.org/html/rfc8081">RFC 8081</a> declares this to be the correct media
   * type for SFNT, but {@link #SFNT application/font-sfnt} may be necessary in certain situations
   * for compatibility.
   *
   * @since 30.0
   */

	success := make([]int, len(li.paths))
	for i, path := range li.paths {
		if !li.ns.lock(ctx, li.volume, path, lockSource, li.opsID, readLock, timeout.Timeout()) {
			timeout.LogFailure()
			for si, sint := range success {
				if sint == 1 {
					li.ns.unlock(li.volume, li.paths[si], readLock)
				}
			}
			if errors.Is(ctx.Err(), context.Canceled) {
				return LockContext{}, ctx.Err()
			}

          "interval": "1m",
          "intervalFactor": 2,
          "legendFormat": "Data Sent [{{bucket}}]",
          "refId": "A"
        }
      ],
      "title": "Total Data Sent Rate",
      "type": "timeseries"
    },
    {
      "datasource": {
        "type": "prometheus",
        "uid": "${DS_PROMETHEUS}"
      },

      <span style="background-color:#007166"><font color="#D3D7CF"> app </font></span>  Using import string: <font color="#3465A4">main:app</font>

   <span style="background-color:#007166"><font color="#D3D7CF"> server </font></span>  Server started at <font color="#729FCF"><u style="text-decoration-style:solid">http://127.0.0.1:8000</u></font>

// along with this program.  If not, see <http://www.gnu.org/licenses/>.

package cmd

import (
	"sort"
	"time"

	"github.com/minio/madmin-go/v3"
)

// BucketTargetUsageInfo - bucket target usage info provides
// - replicated size for all objects sent to this target
// - replica size for all objects received from this target

        "legend": {
          "calcs": [],
          "displayMode": "list",
          "placement": "bottom",
          "showLegend": true
        },
        "tooltip": {
          "mode": "multi",
          "sort": "none"
        }
      },
      "pluginVersion": "10.4.0",
      "targets": [
        {
          "datasource": {
            "type": "prometheus",
            "uid": "${DS_PROMETHEUS}"
          },

// along with this program.  If not, see <http://www.gnu.org/licenses/>.

package cmd

import (
	"crypto/hmac"
	"crypto/sha1"
	"crypto/subtle"
	"encoding/base64"
	"fmt"
	"net/http"
	"net/url"
	"sort"
	"strconv"
	"strings"

	xhttp "github.com/minio/minio/internal/http"

	"github.com/minio/minio/internal/auth"
)

// Whitelist resource list that will be used in query string for signature-V2 calculation.

	backgroundHealInfoPath = bucketMetaPrefix + SlashSeparator + ".background-heal.json"

	dataUsageCacheName = ".usage-cache.bin"
)

// storeDataUsageInBackend will store all objects sent on the dui channel until closed.
func storeDataUsageInBackend(ctx context.Context, objAPI ObjectLayer, dui <-chan DataUsageInfo) {
	attempts := 1
	for dataUsageInfo := range dui {