Continuous Monitoring Using Playwright Scripts

 In today’s fast-paced digital world, ensuring the continuous availability and functionality of your web applications is critical. Whether it's monitoring login pages, product availability, or core user flows, any unexpected failure can lead to a poor user experience or revenue loss.

That’s where Playwright, a modern end-to-end testing framework from Microsoft, becomes a powerful ally. In this blog, we’ll explore how you can use Playwright scripts for continuous monitoring to proactively detect website issues and keep your application healthy.


🚀 Why Use Playwright for Monitoring?

Fast and reliable cross-browser automation

Supports Chrome, Firefox, and WebKit

Works with CI/CD pipelines

Headless mode for lightweight monitoring

Powerful API for intercepting network requests, screenshots, and more


🔧 Setting Up Playwright for Monitoring

1. Install Playwright

npm init -y

npm install -D @playwright/test

npx playwright install

2. Write a Monitoring Script

Example: Monitor a login page and check for successful navigation.

const { chromium } = require('playwright');

(async () => {

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

  const page = await browser.newPage();

  try {

    await page.goto('https://example.com/login', { timeout: 15000 });

    await page.fill('#username', 'test_user');

    await page.fill('#password', 'secure_password');

    await page.click('#loginButton');

    await page.waitForSelector('#dashboard', { timeout: 10000 });

    console.log('✅ Login and navigation successful');

  } catch (error) {

    console.error('❌ Monitoring failed:', error);

  } finally {

    await browser.close();

  }

})();


🕒 Run at Intervals (Continuous Monitoring)

Use cron jobs, CI tools, or serverless platforms to run the script at intervals.

Example (cron every 5 minutes):

*/5 * * * * node monitor-login.js >> monitor.log 2>&1

Or use GitHub Actions or Jenkins pipelines for scalable monitoring.


📩 Alerts and Notifications

Enhance the script to send alerts:

  • Email (using NodeMailer)
  • Slack/Webhook messages
  • SMS (using Twilio)
  • // In case of failure
  • sendAlertToSlack("Login flow failed on production site!");


📊 Bonus: Take Screenshots or Logs

await page.screenshot({ path: 'error_screenshot.png' });

await page.pdf({ path: 'error_report.pdf' });


✅ Benefits of Continuous Monitoring with Playwright

Proactive issue detection

Early alerting before end users notice

Supports visual and functional monitoring

Integrates with CI/CD for full lifecycle coverage

Lightweight and scalable setup


🧠 Final Thoughts

Using Playwright scripts for continuous monitoring bridges the gap between traditional testing and modern synthetic monitoring. Whether you’re a QA engineer, DevOps specialist, or developer, setting up Playwright-based monitoring ensures that your web application is always under watch — smartly, silently, and efficiently.

Learn Playwright Testing Training

Read More: Automating Bulk Form Submissions in Playwright

Read More : Testing Feature Flags and Toggles in Playwright

Read More: Secure Login Flows for Enterprise Apps in Playwright

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