---
 Maven Core Extensions Reference
 ---
 Hervé Boutemy
 ---
 2016-06-25
 ---

Maven Core Extensions Reference

  Maven core provides default {{{./extension.html}extensions}} as defined in <<</META-INF/maven/extension.xml>>>:

        this.description = description;
    }

    public String getDescription() {
        return description;
    }

    /**
     * Set required Maven version, as defined in plugin's pom.xml since 3.0.2,
     * as defined in plugin.xml since 4.0.0-alpha-3.
     *
     * @param requiredMavenVersion Maven version required by the plugin
     * @since 3.0.2
     */

#### "Schéma" d'API

Ici, <a href="https://github.com/OAI/OpenAPI-Specification" class="external-link" target="_blank">OpenAPI</a> est une spécification qui dicte comment définir le schéma de votre API.

Le schéma inclut les chemins de votre API, les paramètres potentiels de chaque chemin, etc.

#### "Schéma" de données

{* ../../docs_src/query_params_str_validations/tutorial002.py hl[9] *}

Comme nous devons remplacer la valeur par défaut `None` dans la fonction par `Query()`, nous pouvons maintenant définir la valeur par défaut avec le paramètre `Query(default=None)`, il sert le même objectif qui est de définir cette valeur par défaut.

Donc :

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

... rend le paramètre optionnel, et est donc équivalent à :

package jcifs.smb;

import jcifs.CIFSException;
import jcifs.SmbSession;
import jcifs.SmbTransport;
import jcifs.SmbTree;

/**
 * Internal SMB session interface providing extended session management capabilities.
 * Defines methods for internal session operations and state management.
 *
 * @author mbechler
 *
 * <p>This interface is intended for internal use.</p>
 */
public interface SmbSessionInternal extends SmbSession {

    /**

     * another goal of the same plugin.
     * @return the goal
     */
    @Nonnull
    String goal() default "";

    /**
     * Lifecycle id of the lifecycle that defines {@link #phase()}. Only valid in combination with {@link #phase()}. If
     * not specified, Maven will use the lifecycle of the current build.
     *

{* ../../docs_src/request_form_models/tutorial001_an_py39.py hl[9:11,15] *}

**FastAPI** will **extract** the data for **each field** from the **form data** in the request and give you the Pydantic model you defined.

## Check the Docs { #check-the-docs }

You can verify it in the docs UI at `/docs`:

<div class="screenshot">
<img src="/img/tutorial/request-form-models/image01.png">
</div>

            false, "Long", 0, 0, null, null, false, null, null, null, null, null, false);
    protected final ColumnInfo _columnReferer = cci("referer", "referer", null, null, String.class, "referer", null, false, false, false,
            "keyword", 0, 0, null, null, false, null, null, null, null, null, false);

@Deprecated
public interface ArtifactFilterManager {
    /**
     * Returns a filter for core + extension artifacts.
     *
     * @return the artifact filter
     * @deprecated use {@code META-INF/maven/extension.xml} to define artifacts exported by Maven core and plugin
     *             extensions.
     */
    @Deprecated
    ArtifactFilter getArtifactFilter();

    /**
     * Returns a filter for only the core artifacts.
     *

**FastAPI** will **extract** the data for **each field** from the **cookies** received in the request and give you the Pydantic model you defined.

## Check the Docs { #check-the-docs }

You can see the defined cookies in the docs UI at `/docs`:

<div class="screenshot">
<img src="/img/tutorial/cookie-param-models/image01.png">
</div>

/// info