Is it possible to get direct path to video file in youtube?

Question

YouTube

In the inspector, of course, src to video files are not displayed)

Answer 1

http://www.youtube.com/get_video_info?video_id=<id video>

We parse the resulting text https://medialize.github.io/URI.js/

function parseSearch(str) {
    return URI(str).search(true);
}
var info = parseSearch('?' + <полученный текст>);
//info.title - тут заголовок
var links = info.url_encoded_fmt_stream_map.split(',').map(function (raw) {
                    var u = parseSearch('?' + raw);
                    return u.url;
                }) //тут массив ссылок

It should be borne in mind that this way we get only links to videos with a sewn audio track. And above 720p quality can not be obtained.
If you need higher quality, you will have to download the sound separately from the video.

Answer 2

Possibly
youtube-dl