How can I improve the performance of Puppeteer screenshots?

How can I improve the performance of Puppeteer screenshots?

To enhance Puppeteer screenshot performance, consider using the following tips: 1. Use headless mode. 2. Set a lower viewport size. 3. Disable images and CSS if not needed. 4. Use the waitForSelector method to ensure elements are loaded before taking a screenshot.

What is headless mode and how does it help?

Headless mode allows Puppeteer to run without a graphical user interface, which speeds up the process since it doesn't need to render the UI visually.

Are there any specific viewport sizes that work best?

Generally, a smaller viewport size can improve performance. A common size is 1280x800, but you can adjust based on your needs.

How can I disable images and CSS?

You can disable images and CSS by intercepting requests using page.setRequestInterception(true) and then aborting requests for those resources.

Can you provide a code example for that?

Sure! Here's a simple example:

const puppeteer = require('puppeteer');

(async () => {
  const browser = await puppeteer.launch();
  const page = await browser.newPage();
  await page.setRequestInterception(true);
  page.on('request', (request) => {
    if (request.resourceType() === 'image' || request.resourceType() === 'stylesheet') {
      request.abort();
    } else {
      request.continue();
    }
  });
  await page.goto('https://example.com');
  await page.screenshot({ path: 'screenshot.png' });
  await browser.close();
})();