The youtube-downloader from abhint

Question for WorkFlow

Thanks a lot for such a great example of flask and yt-dlp.
I am a Flutter developer. I was thinking to make a downloader app with the help of yt-dlp. The problem is yt-dlp is a python program and you can not run it in flutter. Moreover you can not run its executable file in Android or ios. So someone on internet mentioned that you can create yt-dlp api on your cloud-platform using flask and then you can make get and post requests to that api and get a working downloader for Android, iOS, Windows, Linux and MacOS (Flutter supports all these platforms).
But here comes major problems.

If I send a url to yt-dlp api from my app. YT-DLP will start downloading file on my cloud platform and not on my mobile app.
I just want that yt-dlp provide my direct download url of video in json response. So that I directly download the video file on my local mobile app instead of cloud.
Also I do not know the workflow of yt-dlp. How a video's audio and video track is downloaded. is it same url or different url.
How I will convert the downloaded file to mp4.

It would be great if you guide me.

Error in user_sanitize_info()

Is this a yt-dlp error, a flask error, or does it actually belong here?

Log output:

 * Serving Flask app 'main'
 * Debug mode: off
WARNING: This is a development server. Do not use it in a production deployment. Use a production WSGI server instead.
 * Running on all addresses (0.0.0.0)
 * Running on http://127.0.0.1:9001
 * Running on http://REMOVED:9001
Press CTRL+C to quit
 * Restarting with stat
[youtube] Extracting URL: https://www.youtube.com/watch?v=fwtBBTVDFsk
[youtube] fwtBBTVDFsk: Downloading webpage
[youtube] fwtBBTVDFsk: Downloading ios player API JSON
[youtube] fwtBBTVDFsk: Downloading android player API JSON
[youtube] fwtBBTVDFsk: Downloading m3u8 information
[2023-10-07 09:26:17,892] ERROR in app: Exception on / [POST]
Traceback (most recent call last):
  File "/home/USERNAME/.local/lib/python3.10/site-packages/flask/app.py", line 1455, in wsgi_app
    response = self.full_dispatch_request()
  File "/home/USERNAME/.local/lib/python3.10/site-packages/flask/app.py", line 869, in full_dispatch_request
    rv = self.handle_user_exception(e)
  File "/home/USERNAME/.local/lib/python3.10/site-packages/flask/app.py", line 867, in full_dispatch_request
    rv = self.dispatch_request()
  File "/home/USERNAME/.local/lib/python3.10/site-packages/flask/app.py", line 852, in dispatch_request
    return self.ensure_sync(self.view_functions[rule.endpoint])(**view_args)
  File "/var/www/html/maskinen/main.py", line 13, in _index
    user_dict = get_youtube_extract(youtube_url)
  File "/var/www/html/maskinen/utils/tool.py", line 102, in get_youtube_extract
    user_sanitize = user_sanitize_info(sanitize_info)
  File "/var/www/html/maskinen/utils/tool.py", line 23, in user_sanitize_info
    file_size_sanitize = formats['filesize'] if formats['filesize'] else 0
KeyError: 'filesize'
REDACTED - - [07/Oct/2023 09:26:17] "POST / HTTP/1.1" 500 -

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Question for WorkFlow

Error in user_sanitize_info()

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