youtube_removelike_all.js

var video = document.getElementsByTagName("video")[0];
video.pause();

var INNERTUBE_API_KEY = ytcfg.data_.INNERTUBE_API_KEY
var INNERTUBE_CONTEXT = ytcfg.data_.INNERTUBE_CONTEXT
var DELEGATED_SESSION_ID = ytcfg.data_.DELEGATED_SESSION_ID;

// https://gist.github.com/eyecatchup/2d700122e24154fdc985b7071ec7764a
async function getSApiSidHash(SAPISID, origin) {
  function sha1(str) {
    return window.crypto.subtle.digest("SHA-1", new TextEncoder("utf-8").encode(str)).then(buf => {
      return Array.prototype.map.call(new Uint8Array(buf), x=>(('00'+x.toString(16)).slice(-2))).join('');
    });
  }
  
  const TIMESTAMP = Math.floor(Date.now()*1e-3);
  const digest = await sha1(`${TIMESTAMP} ${SAPISID} ${origin}`);

  return `${TIMESTAMP}_${digest}`;
}
var sleep = ms => new Promise(res => setTimeout(res, ms))
async function ytApi(endpoint, object) {
  var SAPISID = document.cookie.split('SAPISID=')[1].split('; ')[0]
  var SAPISIDHASH = await getSApiSidHash(SAPISID, 'https://www.youtube.com');
  // var visitorData = INNERTUBE_CONTEXT["client"]["visitorData"];
  // var result = await fetch(`${endpoint}?key=${INNERTUBE_API_KEY}&prettyPrint=false`, {
  var result = await fetch(`${endpoint}?prettyPrint=false`, {
    method: "POST",
    headers: {
      "Authorization": `SAPISIDHASH ${SAPISIDHASH}`,
      "Content-Type": 'application/json',
      "x-goog-authuser": "0",
      "x-goog-pageid": DELEGATED_SESSION_ID,
      // "x-goog-visitor-id": "",
      // "x-origin": "https://www.youtube.com",
      // "x-youtube-bootstrap-logged-in": "true",
      // "x-youtube-client-name": "1",
      // "x-youtube-client-version": "2.20240614.01.00"
    },
    body: JSON.stringify({context: INNERTUBE_CONTEXT, ...object}),
    mode: "same-origin"
  })
  return await result.json()
}

while (true) {

  /*
  console.info("fetch HTML")
  var fetchResult = await fetch("https://www.youtube.com/watch?v=&list=LL");
  var htmlText = await fetchResult.text();
  var vyide = "var ytInitialData = ";
  var vyideBeginPos = htmlText.indexOf(vyide);
  var vyideEndPos = htmlText.indexOf("};", vyideBeginPos);
  var ytInitialDataText = htmlText.slice(vyideBeginPos+vyide.length, vyideEndPos+1);
  // console.log(ytInitialDataText);
  var ytInitialData = JSON.parse(ytInitialDataText);
  console.log(ytInitialData); 
  var contents = ytInitialData.contents.twoColumnWatchNextResults.playlist.playlist.contents;
  */

  console.log("browse");
  var browseResponse = await ytApi("/youtubei/v1/browse", {"bid": "ANyPxKoUYFN_u7oNe2WwYJ78Vv193DSaOknVVWN26rKR86-SrPPqlix9fD2XcZTNZU8w6sMOR-OGT-oPwEgUBQDDT19bJ3kisw", "browseId": "VLLL", "params": "wgYCCAA%3D"});
  console.info({browseResponse});
  try {
    var contents = browseResponse.contents.twoColumnBrowseResultsRenderer.tabs[0].tabRenderer.content.sectionListRenderer.contents[0].itemSectionRenderer.contents[0].playlistVideoListRenderer.contents;
  } catch(error) {
    var isrContents = browseResponse.contents.twoColumnBrowseResultsRenderer.tabs[0].tabRenderer.content.sectionListRenderer.contents[0].itemSectionRenderer.contents;
    console.warn({isrContents});
    throw error;
  }

  // var videoIdList = [];
  if(contents.length==0) { break; }
  for(var content of contents) {
    try {
      // var videoId = content.playlistPanelVideoRenderer.navigationEndpoint.watchEndpoint.videoId
      var videoId = content.playlistVideoRenderer.videoId

      console.info(videoId)
      var removelikeResponse = await ytApi("/youtubei/v1/like/removelike", {"bid": "ANyPxKpY3QVrGZIBVqjedI2NHyp9y9x6dZmV_p2SC1wO2WOioc_jY4PgWij-73oi4Fx1iEbn11shRusOPIFl2jL2QjEMD6lZEg", "target": {"videoId": videoId}});
      console.info({removelikeResponse});
      // break;

    } catch(error) {
      console.warn({error, content});
    }
  }

}