:code:`saveFormToEndpoint(url, formid, callback_ok, disable_dialog, callback_fail)` is the opposite of :code:`mapDataToFormUI()`
and retrieves the data from the form and sends it to the configured (url) endpoint as json structure.
Underneath this function uses :code:`getFormData(parent)` defined in `opnsense.js` which is responsible for extracting values from
different form types such as :code:`<input>` and :code:`<select>` types. When the attributes should be type safe
(e.g. an *integer* in json format should be presented as :code:`1` and not as :code:`"1"`),
there is the possibility to "cleanse" the data first using a filter. In this case define an attribute on the input tag with the name :code:`type_formatter`