walletExtractor.js

const lodash = require('lodash/util.js');

const puppeteer = require('puppeteer-extra');
const StealthPlugin = require('puppeteer-extra-plugin-stealth');
puppeteer.use(StealthPlugin());
const cheerio = require('cheerio');


export default async function handler(req, res) {
    console.time('handler');
    const {address, start, end} = req.query

    const tokenIds = lodash.range(start, end);
    const urls = tokenIds.map((tokenId) => `https://opensea.io/assets/matic/${address}/${tokenId}`);

    const browser = await puppeteer.launch({headless: true});


    const promises = urls.map(async (url) => {
        const page = await browser.newPage();
        page.goto(url, {waitUntil: 'domcontentloaded'});
        await page.waitForSelector(`[data-testid="ItemOwnerAccountLink"]`)
        const html = await page.content();
        const $ = cheerio.load(html);
        await page.close();
        return  $(`[data-testid="ItemOwnerAccountLink"] a` ).attr('href').replace('/','');
    })

    const results = await Promise.all(promises);

    await browser.close();
    console.timeEnd('handler');
    res.json({results})
}