[TYPO3-dev] TCEForms Backendmodul - generate form based on TCA definition and use data manually in controller

[Robin Kemna]

Envirement:
TYPO3: v.8.7.4
Webserver: Apache
PHP: 7.0.24

I intend to design a backendmodul where i can manage data saved behind a REST-API oder nativ Database (MariaDB).
Further it should be possible to restrict access to different form fields based on the TYPO3 authorization concept.

So i decided to use the already implemented functionality of TCA Form rendering which already includes the user-authorization concept as well as the generation of special form fields like date picker and so on.
Therefore i used the following functions..

        $nodeFactory = \TYPO3\CMS\Core\Utility\GeneralUtility::makeInstance(NodeFactory::class);
        $formResultCompiler = \TYPO3\CMS\Core\Utility\GeneralUtility::makeInstance(FormResultCompiler::class);
        $formDataGroup = \TYPO3\CMS\Core\Utility\GeneralUtility::makeInstance(TcaDatabaseRecord::class);
        $formDataCompiler = \TYPO3\CMS\Core\Utility\GeneralUtility::makeInstance(FormDataCompiler::class, $formDataGroup);
        $formDataCompilerInput = [
            'tableName' => '{tabellen_name}',
            'command' => $command,
        ];
        $formData = $formDataCompiler->compile($formDataCompilerInput);
       $formData['renderType'] = 'outerWrapContainer';
        $formResult = $nodeFactory->create($formData)->render();
        $formResultCompiler->mergeResult($formResult);
        $this->view->assign('form',$formResult);

The form is getting rendered quiet perfectly but the required JavaScript is not. 
The documentation said that it should be delivered in the upper functions calls aswell.. but nothing.
When i try to send the form, no data is send to the action, because all name attributes are not set properly. 
Data-name Attributes are set instead. Those should be converted to name attributes by the missing JavaScript.

So i looked it up in other extensions and saw that the TYPO3/CMS/Backend/FormEngine AMD is needed.
When using the AMD it ends up in following error.. logged in the consol

Fehlermeldung: "Cannot read property 'formName' of undefined" (line 3)

1: var FormEngine = {
2: Validation: FormEngineValidation,
3: formName: TYPO3.settings.FormEngine.formName,
4: openedPopupWindow: null,
5: legacyFieldChangedCb: function() { !$.isFunction(TYPO3.settings.FormEngine.legacyFieldChangedCb) || 
6: TYPO3.settings.FormEngine.legacyFieldChangedCb(); },
7: browserUrl: ''
8: };


Does anybody got experience in this topic?
You need more information, ask me!