Javascript - How to get the url for Youtube videos programmatically? (self-answer) -

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an extremely common question "how url youtube video?". answers involve scraping , regexing html of video page or resort 'use 3rd party tool or website'.

its extremely easy dev tools console in browser on youtube video page.

see answer below.

example here:

https://gist.github.com/geuis/8b1b2ea57d7f9a9ae22f80d4fbf5b97f

// run dev tools console of youtube video // accurate of june 12, 2016 var videourls = {}; ytplayer.config.args.url_encoded_fmt_stream_map.split(',').foreach(function (item) {   var obj = {};    item.split('&').foreach(function (param) {     param = param.split('=');     obj[param[0]] = decodeuricomponent(param[1]);   });    videourls[obj.quality] = obj; });  console.log(videourls);

sample output https://www.youtube.com/watch?v=9bzkp7q19f0

{   "hd720": {     "url": "https://r3---sn-n4v7sn76.googlevideo.com/videoplayback?ms=au&mv=m&mt=146577…za3kgkxmjcumc4wlje&ip=108.233.85.171&key=yt6&requiressl=yes&itag=22&cnr=14",     "quality": "hd720",     "s": "1bef82c7d9487809555e4b5124ca244fd93857c62.7869eb3fe7e8be955b85e19f769dd80c49f3a87cb",     "itag": "22",     "type": "video/mp4;+codecs=\"avc1.64001f,+mp4a.40.2\""   },   "medium": {     "url": "https://r3---sn-n4v7sn76.googlevideo.com/videoplayback?ms=au&mv=m&mt=146577…axlnnqyza3kgkxmjcumc4wlje&ip=108.233.85.171&key=yt6&requiressl=yes&itag=18",     "quality": "medium",     "s": "35addcf2f151540b9ae72455ed9cd079b3a166669.f168091b130653fcaca72506c01625b74e46c1a7d",     "itag": "18",     "type": "video/mp4;+codecs=\"avc1.42001e,+mp4a.40.2\""   },   "small": {     "url": "https://r3---sn-n4v7sn76.googlevideo.com/videoplayback?ms=au&mv=m&mt=146577…axlnnqyza3kgkxmjcumc4wlje&ip=108.233.85.171&key=yt6&requiressl=yes&itag=17",     "quality": "small",     "s": "0c397549d581241f0f39d3eb8bf6e9b9067f65afd.76b46a360178c4b001e96166c46aeae5cf0d6a35f",     "itag": "17",     "type": "video/3gpp;+codecs=\"mp4v.20.3,+mp4a.40.2\""   } }

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