Set up MetaMask wallet and OpenSea

setup-metamask-opensea.js

import puppeteer from "puppeteer";
import * as dappeteer from "@chainsafe/dappeteer";
import config from "../keys";

const createAssetURL = `https://opensea.io/collection/${config.COLLECTION_NAME}/assets/create`

const setUp = async () => {
  const browser = await dappeteer.launch(puppeteer, {
    metamaskVersion: config.METAMASK_VERSION,
    args: ["--no-sandbox", "--disable-setuid-sandbox"],
  });

  const metamask = await dappeteer.setupMetamask(browser, {
    seed: config.METAMASK_MNEMONIC_PHRASE,
    password: config.METAMASK_PASSWORD,
  });

  await metamask.addNetwork({
    networkName: "Polygon Mainnet",
    rpc: "https://polygon-rpc.com/",
    chainId: 137,
    symbol: "MATIC",
    explorer: "https://polygonscan.com/",
  });

  await metamask.switchNetwork("Polygon Mainnet");

  const page = await browser.newPage();
  await page.goto(createAssetURL, { waitUntil: "networkidle0" });
  await page.bringToFront();

  const tabs = await browser.pages();
  await tabs[0].close();

  await page.waitForXPath('//button[contains(.,"Show more options")]');
  const moreButton = await page.$x('//button[contains(.,"Show more options")]');
  await moreButton[0].click();
  await page.waitForTimeout(5000);
  const metaMaskButton = await page.$x(
    '//button[.//span[contains(text(),"MetaMask")]]'
  );
  await metaMaskButton[0].click();
  await metamask.approve();
  await page.waitForTimeout(2000);

  await metamask.sign();
  await page.bringToFront();
  await page.waitForTimeout(5000);
};