Is there a way to retrieve YouTube URLs through programming automation?

I'm currently working on a project to automatically retrieve YouTube URLs and incorporate a download button feature. I found a tutorial suggesting the use of

'ytplayer.config.args.url_encoded_fmt_stream.map.split(",");'

After attempting to execute this command both in the console and within my project, I encountered the following error message:

VM765:1 Uncaught TypeError: Cannot read property 'map' of undefined
at <anonymous>:1:45'

Although I came across similar discussions on Stack Overflow where users recommended using the same line of code, I am uncertain as to why it is not functioning properly.

manifest.json

"name" : "Simple Youtube Downloader",
"description" : "Simplify your YouTube video downloads.",
"version" : "0.1",
"author" : "Nick Germaine",
"web_accessible_resources" : ["src/youtubedl.js"],
"manifest_version" : 2,
"content_scripts" : [
    {
        "matches" : ["https://www.youtube.com/watch*"],
        "js" : ["src/loader.js"]
    }
]

loader.js

s = document.createElement("script");
s.src = chrome.extension.getURL("src/youtubedl.js");

s.onload = function(){
    this.remove();
}

document.head.appendChild(s);

youtubedl.js

var videoUrls = window.ytplayer.config.args.loaderUrl.map.split(',');


console.log("Our extension has been loaded", videoUrls)

Answer ā„–1

It appears that the variable url_encoded_fmt_stream is not defined, leading to the error. To receive better assistance, consider sharing a full code snippet for further analysis.

Answer ā„–2

Here are a few key points to consider:

  1. Downloading videos from YouTube goes against their policies, so creating an extension for that purpose may lead to it being removed.

  2. YouTube regularly updates its website, making tutorials outdated quickly. The element in your code is empty, resulting in undefined values when using the map function.

  3. If you're still interested in developing this tool, I recommend checking out this GitHub repository. It offers a robust solution with an API that can be integrated into an extension or similar project: https://github.com/fent/node-ytdl-core

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