Youtube_comment_test.js

const API_KEY = `UsEYourOwnApIK3Yp|ea5e`;  // https://console.developers.google.com/apis/credentials?project=phot-256520
const MAX_PAGES = 10 // * 50

const VIDEO_ID = new URLSearchParams((new URL(window.location.href)).search).get('v');
const API_URL = `https://www.googleapis.com/youtube/v3/commentThreads?key=${API_KEY}&textFormat=plainText&part=snippet&videoId=${VIDEO_ID}&maxResults=50`;
const API_NEXT_URL = `https://www.googleapis.com/youtube/v3/commentThreads?key=${API_KEY}&textFormat=plainText&part=snippet&maxResults=50&pageToken=`;

const getComments = async (nextToken) => {
    const resp = await fetch(nextToken ? `${API_NEXT_URL}${nextToken}` : API_URL)
    const json = await resp.json();
    return json;
}

const getAllComments = async () => {
    let hasNext = true;
    let nextToken = null;
    let pageCounter = 0;
    const allComments = [];

    while(hasNext) {
        try {
            const OUT = await getComments(nextToken);
            allComments.push(...OUT.items);
            console.log("output.nextPageToken ", OUT.nextPageToken);
            console.log(pageCounter);
            hasNext = OUT.nextPageToken && pageCounter++ < MAX_PAGES;
        } catch (e) {
            console.log("erreur ", e);
            hasNext = false;
        }
    }
    return allComments;
}

let ALL_COMMENTS;
getAllComments().then((allComments) => {
    console.log(allComments);
    ALL_COMMENTS = allComments;
})


// copy(ALL_COMMENTS) after that