index.js

require("dotenv").config();
const qrcode = require("qrcode-terminal");
const { Client } = require("whatsapp-web.js");

let sessionLocal = JSON.parse(process.env.WW_SESSION);
console.log(sessionLocal);

const puppeteerOptions = {
  headless: true,
  args: ["--no-sandbox"],
};

const client = new Client({
  puppeteer: puppeteerOptions,
  // session: sessionLocal
});

client.on("qr", (qr) => {
  qrcode.generate(qr, { small: true });
});

client.on("authenticated", (session) => {
  // Save this session object in WW_SESSION manually to reuse it next time
  console.log(JSON.stringify(session));
});

client.on("ready", () => {
  console.log("Client is ready!");
});

client.on("message", (message) => {
  console.log(message);
  const check = message.body.toLowerCase();
  if (check.indexOf("!hi") != -1 || check.indexOf("!hello") != -1) {
    message.reply(
      "Hello there!\nI am ww-bot. This is an automated message.\nRead more at https://github.com/ameybhavsar24/ww-bot"
    );
  }
});

client.initialize();