1_HeadlessMode.md

Headless Mode

AreaBrick

You need to create your own editable, depending on your integration. You may want to use the FormDialogBuilder to simplify the area configuration section.

Form Building

This is an example, how you may want to build FormBuilder forms in headless mode:

$optionBuilder = new FormOptionsResolver();
$optionBuilder->setFormId($formId);
$optionBuilder->setFormTemplate($formTemplate);
$optionBuilder->setFormPreset($formPreset);
$optionBuilder->setOutputWorkflow($formOutputWorkflow);

$form = $this->formAssembler->assembleHeadlessForm($optionBuilder);

 $form->submit($request->request->all());

if (!$form->isValid()) {

    // process validation errors here
    
    return;
}

$response = null;
$submissionEvent = new SubmissionEvent($request, $formRuntimeData, $form, null, false);
$this->eventDispatcher->dispatch($submissionEvent, FormBuilderEvents::FORM_SUBMIT_SUCCESS);

$finishResponse = $this->formSubmissionFinisher->finishWithSuccess($request, $submissionEvent);

if ($finishResponse instanceof RedirectResponse) {
    return [
        'success'  => true,
        'redirect' => $finishResponse->getTargetUrl()
    ];
}

if ($finishResponse instanceof JsonResponse) {
    $response = json_decode($finishResponse->getContent(), true, 512, JSON_THROW_ON_ERROR);
}

if ($response === null) {
    throw new \InvalidArgumentException('empty success response');
}

if ($response['success'] === false) {

    if (!array_key_exists('validation_errors', $response)) {
        return $response;
    }

    $validationErrors = $response['validation_errors']
    // process validation errors here
    
    return null;
}

return $response;