youtube-transcript-node/dist/utils/constants.js

This is a Node.js API which allows you to get the transcripts/subtitles for a given YouTube video. It also works for automatically generated subtitles and supports translating subtitles.

export const WATCH_URL = 'https://www.youtube.com/watch?v={video_id}';
export const INNERTUBE_API_URL = 'https://www.youtube.com/youtubei/v1/player?key={api_key}';
export const INNERTUBE_CONTEXT = {
    client: {
        clientName: 'ANDROID',
        clientVersion: '20.10.38'
    }
};