node js timed out after 30000 ms while waiting for the WS endpoint URL to appear in stdout

Question

I am using handlebars and puppeteer lib for generating pdfs . For handlebar input i am creating a array of data. Now i am looping through that data array and passing each record to puppeteer lib to generate pdf. I have large set of data . When loop is running entire application is hanging and it gives me the below error

How to loop data with puppeeteer so tht i can generate multiple pdf file base64 string

timed out after 30000 ms while waiting for the WS endpoint URL to appear in stdout! at ChromeLauncher.launch

below is the code

import { testres1 } from './getdata.js'
import { pdfrouter } from "./generatepdf.js";
import { insertdata } from "./insert.js";
import { pool } from "./dbconn.js";

        async function createPDF() {
            const insertquery = ('INSERT INTO base64staging(filename, base64str,testid) VALUES($1, $2, $3)');
            const queryPrommises1 = [];
            // const client = await pool.connect()
            const result = await testres1(pool) // This returns large set of data (10k to 20k records)
            console.log('result ' + result)
            var promiseresult = []
            if (result !== null && result !== undefined) {
                JSON.parse(result).forEach(async res => {
                    const res1 = await pdfrouter(res)
                    queryPrommises1.push(pool.query(insertquery, [res.employeeid.toString(), res1, res.testid]))
                    const result1 = await Promise.allSettled(queryPrommises1);
                    console.log(result1.length)
                     result1.forEach(res => {
                         if (res.status === 'fulfilled') {
                             promiseresult.push(res.value)
                         }
                    })
                })
                return promiseresult
            }
        }
    const testres2 = await createPDF()

pdf file creation function - generatepdf.js

const pdfrouter = async (data) => {
    process.setMaxListeners(Infinity)
    try {
        const templateHtml = fs.readFileSync(
            join(process.cwd(), "./index.html"),
            "utf8"
        );

        var template = Handlebars.compile(templateHtml);
        var html = encodeURIComponent(template(data));
        var milis = new Date();
        milis = milis.getTime();

        const options = {
            width: '1230px',
            headerTemplate: "<p></p>",
            footerTemplate: "<p></p>",
            displayHeaderFooter: false,
            margin: {
                top: "10px",
                bottom: "30px"
            },
            printBackground: true,
        };

        const browser = await launch({
            args: ['--no-sandbox'],
            headless: "new"
        });
        var page = await browser.newPage();
        console.log('Page opened')
        await page.goto(`data:text/html;charset=UTF-8,${html}`, {
            waitUntil: 'networkidle0'
        });
        let pdfBuffer = await page.pdf(options);
        await browser.close();
        console.log("Done: invoice.pdf is created!");
        return pdfBuffer.toString('base64')

    } catch (err) {
        console.log("ERROR:", err);
        return err
    }

}

export { pdfrouter }

getdata.js - this js gets all the data needed for puppeteer

const testres1 = async (connection) => {
    console.log('entered create pdf')

    const query = `SELECT employeeid, uid, payout
    SUM(CAST(COALESCE(NULLIF(payout, ''), '0') AS decimal)) OVER(PARTITION BY employeeid) AS sumpayout
    FROM test_stage`
    const queryPrommises = [];
    queryPrommises.push(connection.query(query))
    //console.log(result.rows)
    const result = await Promise.all(queryPrommises);
    let tempmap = {}
    //console.log('result ' + result[0].rows[0])
    const res = Object.values(result[0].rows.reduce((all, y) => {
        const group = all[y.employeeid] || {
            employee_name: y.employeename,
            employee_id: y.employeeid,

            data: []
        };
        group.data.push({
            payout: y.payout
        })
        all[y.employeeid] = group;
        return all;
    }, {}));
    //await connection.end()

    //console.log('@@@@@ ' + JSON.stringify(res))

    return JSON.stringify(res)
}