"price": 42.0,
        "tax": 3.2
    },
    "user": {
        "username": "dave",
        "full_name": "Dave Grohl"
    }
}
```

/// note

"Notez que, bien que nous ayons déclaré le paramètre `item` de la même manière que précédemment, il est maintenant associé à la clé `item` dans le corps de la requête."`.

///

* Asegúrate de tener modelos Pydantic bien definidos para tus request bodies y responses.
* Configura los permisos y roles necesarios usando dependencias.
* Nunca guardes contraseñas en texto plano, solo hashes de contraseñas.
* Implementa y utiliza herramientas criptográficas bien conocidas, como Passlib y JWT tokens, etc.

     *
     * @param form the search form containing search criteria
     * @return HTML response for the path mapping list page
     */
    @Execute
    @Secured({ ROLE, ROLE + VIEW })
    public HtmlResponse index(final SearchForm form) {
        return asListHtml();
    }

    /**
     * Displays the path mapping list with pagination support.
     *

     */
    @Execute
    @Secured({ ROLE, ROLE + VIEW })
    public HtmlResponse index() {
        return asListHtml();
    }

    /**
     * Displays the group list with pagination.
     *
     * @param pageNumber the page number
     * @param form the search form
     * @return HTML response for the list page
     */
    @Execute
    @Secured({ ROLE, ROLE + VIEW })

    /**
     * Displays the related query management index page.
     *
     * @return HTML response for the related query list page
     */
    @Execute
    @Secured({ ROLE, ROLE + VIEW })
    public HtmlResponse index() {
        return asListHtml();
    }

    /**
     * Displays a paginated list of related query items.
     *
     * @param pageNumber the page number to display (optional)

            iterator.remove();
          }
        };
      }
    };
  }

  /**
   * Returns a view of {@code iterable} containing its first {@code limitSize} elements. If {@code
   * iterable} contains fewer than {@code limitSize} elements, the returned view contains all of its
   * elements. The returned iterable's iterator supports {@code remove()} if {@code iterable}'s
   * iterator does.
   *

    }

    /**
     * Gets the path to view template files directory.
     *
     * @param names the path components to append to the view template directory
     * @return the Path object pointing to the view template directory
     */
    public static Path getViewTemplatePath(final String... names) {
        return getPath("WEB-INF/", "view", names);
    }

    /**

<img src="/img/tutorial/path-params/image01.png">

/// info

À nouveau, en utilisant uniquement les déclarations de type Python, **FastAPI** vous fournit automatiquement une documentation interactive (via Swagger UI).

On voit bien dans la documentation que `item_id` est déclaré comme entier.

///

## Les avantages d'avoir une documentation basée sur une norme, et la documentation alternative.

    @Resource
    protected SystemHelper systemHelper;

    /** Helper for managing access tokens and API authentication. */
    @Resource
    protected AccessTokenHelper accessTokenHelper;

    /** Helper for view-related operations and rendering. */
    @Resource
    protected ViewHelper viewHelper;

    /** Manager for handling application messages and internationalization. */
    @Resource

///

{* ../../docs_src/extra_models/tutorial003_py310.py hl[1,14:15,18:20,33] *}


### `Union` en Python 3.10