* Champs String (`str`), définition de longueur minimum ou maximale.
    * Nombres (`int`, `float`) avec valeur minimale and maximale, etc.

* Validation pour des types plus exotiques, tel que:
    * URL.
    * Email.
    * UUID.
    * ...et autres.

Toutes les validations sont gérées par le bien établi et robuste **Pydantic**.

### Sécurité et authentification

<img src="/img/tutorial/generate-clients/image07.png">

As you see, the method names now have the tag and then the function name, now they don't include information from the URL path and the HTTP operation.

### Preprocess the OpenAPI Specification for the Client Generator

The generated code still has some **duplicated information**.

      <version>1.2.0+</version>
      <fields>
        <field>
          <name>location</name>
          <version>1.2.0+</version>
          <type>String</type>
          <description>
            The path/URL of the settings definition or {@code null} if unknown.
          </description>
        </field>
      </fields>
      <codeSegments>
        <codeSegment>
          <version>1.2.0+</version>
          <code>

```

////

Dann, mit einer URL wie:

```
http://localhost:8000/items/?q=foo&q=bar
```

bekommen Sie alle `q`-*Query-Parameter*-Werte (`foo` und `bar`) in einer Python-Liste – `list` – in ihrer *Pfadoperation-Funktion*, im Funktionsparameter `q`, überreicht.

Die Response für diese URL wäre also:

```JSON
{
  "q": [
    "foo",
    "bar"
  ]
}

MinIO collects the following metrics at the cluster level.
Metrics may include one or more labels, such as the server that calculated that metric.

These metrics can be obtained from any MinIO server once per collection by using the following URL:

```shell
https://HOSTNAME:PORT/minio/v2/metrics/cluster
```

Replace ``HOSTNAME:PORT`` with the hostname of your MinIO deployment.

            result.setDocId(DfTypeUtil.toString(source.get("docId")));
            result.setQueryId(DfTypeUtil.toString(source.get("queryId")));
            result.setUrl(DfTypeUtil.toString(source.get("url")));
            result.setUserInfoId(DfTypeUtil.toString(source.get("userInfoId")));
            return updateEntity(source, result);
        } catch (InstantiationException | IllegalAccessException e) {

                final List<String> cmdList = new ArrayList<>();
                for (final String value : commandList) {
                    cmdList.add(expandPath(value.replace("${url}", tempPath).replace("${outputFile}", outputPath)));
                }

                executeCommand(thumbnailId, cmdList);

                if (outputFile.isFile() && outputFile.length() == 0) {

## Caveat

*Applications that use direct S3 API will work fine, however interactive users uploading content using (when POSTing to the presigned URL an app generates) a popup becomes visible on browser to provide client certs, you would have to manually cancel and continue. This may be annoying to use but there is no workaround for now.*

## Explore Further

                        }
                        if (StringUtil.isBlank(favoriteUrl)) {
                            throw new WebApiException(HttpServletResponse.SC_BAD_REQUEST, "URL is null.");
                        }

                        boolean found = false;
                        for (final String id : docIds) {
                            if (docId.equals(id)) {

        if (auth != null) {
            int hash = (auth.getUsername() + auth.getPassword()).hashCode();
            buffer.append(hash).append('@');
        }

        // consider the URL (instead of the id) as this most closely relates to the contents in the repo
        buffer.append(repository.getUrl());

        return buffer.toString();
    }