I have some custom Javascripts. at the part of code I want to leverage Drupal AjaxResponse but looks like it's only working when there Triggered by Drupal Form's ajax element. ( my ajax call verb is POST)

I mean when I can this endpoint from js, I see the response in browser network, but it does not work and not applied.


[{"command":"alert","text":"just to test trigger Drupal command"}]


  path: '/admin/media/picture-park/preset-selector'
    _title: 'Preset Selector Picture Park images as Media'
    _controller: '\Drupal\media_entity_remote_picture_park\Controller\MediaController::presetSelector'
    _permission: 'Remote Image Picture Park: Create new media'

Controller method:

  public function presetSelector(): AjaxResponse
    $response = new AjaxResponse();
    $response->addCommand(new AlertCommand("just to test trigger Drupal command"));

    return $response;


  function postData(data) {
    return jQuery.post("/admin/media/picture-park/preset-selector?_wrapper_format=drupal_ajax", {
      "data": data,
      "js": true,
      "_drupal_ajax": 1,

So, what I'm looking for is, how can I make Drupal AjaxResponse runs and get executed when the endpoint is called from a custom js?

  • 1
    The simplest way is Drupal.ajax({url: endpoint}).execute(); where endpoint is the URL of your Ajax controller. See drupal.stackexchange.com/questions/230312/…
    – 4uk4
    Aug 19, 2022 at 6:33
  • Thank you @4uk4. sounds feasible. how can i add payload to the request?
    – Yuseferi
    Aug 19, 2022 at 7:49
  • @4uk4 I found it. it can be done with submit param. thanks for hint
    – Yuseferi
    Aug 19, 2022 at 7:57

1 Answer 1


You should be able to trigger the commands with the following:

ajaxObject = Drupal.ajax({
  url: "",
  base: false,
  element: false,
  // Use the 'submit' key to pass data.
  // Leave this key out if not passing any data.
  submit: {"data":"test"},
  progress: false

// Trigger ajax commands.
ajaxObject.success(data, "success");

Add the above to a success callback of your Ajax response. Note you may also need to add the following to process any Ajax inserted content:

  • Thank you!. how request payload set? I didn't find data in Drupa.ajax . sounds like it needs Ajax. options to pass data.?
    – Yuseferi
    Aug 19, 2022 at 7:50
  • I found it. it's with submit key.
    – Yuseferi
    Aug 19, 2022 at 7:57

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