Want to convert get thumbnails of my video

I am working in Drupal. as my server not support ffmpeg so i cant make thumbnails of video file. Heard about this service now quite confused i dont have any account for export. is any one here simple guide me simple example for where i can pass video file name and path then i got the thumbail image path

please guide me

The template below will simply give you 10 thumbnails from a video that you upload to it. If you want to get the image path afterwards, you can find a temporary (24h) link to it in the Assembly JSON.

  "steps": {
    ":original": {
      "robot": "/upload/handle"
    "thumbnailed": {
      "use": ":original",
      "robot": "/video/thumbs",
      "count": 10,
      "ffmpeg_stack": "v4.3.1"