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

Isso irá validar os dados, mostrar um erro claro quando os dados forem inválidos, e documentar o parâmetro na *operação de rota* do esquema OpenAPI..

## Adicionando mais validações

Você também pode incluir um parâmetro `min_length`:

```Python hl_lines="10"

                                   WARNING!!
     ** THIS FILE MAY CONTAIN SENSITIVE INFORMATION ABOUT YOUR ENVIRONMENT ** 
     ** PLEASE INSPECT CONTENTS BEFORE SHARING IT ON ANY PUBLIC FORUM **
*********************************************************************************
mc: Health data saved to dc-11-health_20200321053323.json.gz
```

The gzipped output contains debugging information for your system

    * <abbr title="Sorğu: Query">Sorğu</abbr> parametrləri.
    * <abbr title="Çərəz: Cookie">Çərəzlər</abbr>.
    * <abbr title="Başlıq: Header">Başlıqlaq</abbr>.
    * <abbr title="Forma: Form">Formalar</abbr>.
    * Fayllar.
* Daxil olan məlumatları <abbr title="Çevrilmə: serialization, parsing, marshalling olaraq da bilinir">çevirmək</abbr> üçün aşağıdakı məlumat növlərindən istifadə edilir (JSON olaraq):

    protected void verifyForm(final CreateForm form) {
        if (form.token != null && form.token.split(" ").length > 1) {
            throwValidationError(messages -> {
                messages.addErrorsInvalidKuromojiToken("token", form.token);
            }, this::asEditHtml);
        }
        if (form.segmentation != null && form.reading != null && form.segmentation.split(" ").length != form.reading.split(" ").length) {

            op.setup(form -> {
                form.initialize();
                form.crudMode = CrudMode.CREATE;
                form.dictId = dictId;
            });
        });
    }

    @Execute
    @Secured({ ROLE })
    public HtmlResponse edit(final EditForm form) {
        validate(form, messages -> {}, () -> asListHtml(form.dictId));

/// info | "Bilgi"

`Form` doğrudan `Body` sınıfını miras alan bir sınıftır.

///

/// tip | "İpucu"

Form gövdelerini tanımlamak için `Form` sınıfını kullanmanız gerekir; çünkü bu olmadan parametreler sorgu parametreleri veya gövde (JSON) parametreleri olarak yorumlanır.

///

## "Form Alanları" Hakkında

            op.setup(form -> {
                form.initialize();
                form.crudMode = CrudMode.CREATE;
            });
        }).renderWith(data -> {
            registerRoleTypeItems(data);
        });
    }

    @Execute
    @Secured({ ROLE })
    public HtmlResponse edit(final EditForm form) {
        validate(form, messages -> {}, this::asListHtml);

    public HtmlResponse search(final SearchForm form) {
        copyBeanToBean(form, accessTokenPager, op -> op.exclude(Constants.PAGER_CONVERSION_RULE));
        return asHtml(path_AdminAccesstoken_AdminAccesstokenJsp).renderWith(data -> {
            searchPaging(data, form);
        });
    }

    @Execute
    @Secured({ ROLE, ROLE + VIEW })
    public HtmlResponse reset(final SearchForm form) {
        accessTokenPager.clear();

        saveToken();
        return asEditHtml(form);
    }

    @Execute
    @Secured({ ROLE })
    public HtmlResponse update(final EditForm form) {
        final String jspType = "view";
        final File jspFile = getJspFile(form.fileName, jspType);

        if (form.content == null) {
            form.content = StringUtil.EMPTY;
        }

        validate(form, messages -> {}, () -> asEditHtml(form));

            searchPaging(data, form);
        });
    }

    @Execute
    @Secured({ ROLE, ROLE + VIEW })
    public HtmlResponse search(final SearchForm form) {
        saveToken();
        copyBeanToBean(form, jobLogPager, op -> op.exclude(Constants.PAGER_CONVERSION_RULE));
        return asHtml(path_AdminJoblog_AdminJoblogJsp).renderWith(data -> {
            searchPaging(data, form);
        });
    }

    @Execute