What are some tips for web scraping using Puppeteer?

What are some tips for web scraping using Puppeteer?

When using Puppeteer for web scraping, here are some tips: 1. Use headless mode for faster scraping. 2. Implement delays to avoid getting blocked. 3. Use page.waitForSelector to ensure elements are loaded before interacting. 4. Handle navigation and dynamic content carefully.

How can I avoid getting blocked while scraping?

To avoid getting blocked, you can rotate user agents, use proxies, and implement random delays between requests. Also, try to mimic human behavior by interacting with the page like a real user.

Can you show me a simple code example?

Sure! Here's a basic example:

const puppeteer = require('puppeteer');
(async () => {
  const browser = await puppeteer.launch({ headless: true });
  const page = await browser.newPage();
  await page.goto('https://example.com');
  const data = await page.evaluate(() => {
    return document.querySelector('h1').innerText;
  });
  console.log(data);
  await browser.close();
})();

What are the best practices for storing scraped data?

Best practices for storing scraped data include using a structured format like JSON or CSV, storing data in a database for easy access, and ensuring data integrity by validating the scraped content.