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How to extract classified ads from LeBonCoin.fr using JavaScript?
Scraping classified ads from LeBonCoin.fr using JavaScript allows you to collect data on items for sale, rental properties, and services. LeBonCoin is one of France’s largest classified ad platforms, making it a valuable source for market research. Using Node.js with Puppeteer, you can automate browser interactions to handle dynamic content and extract relevant details such as ad titles, prices, and locations. The process begins with inspecting the website structure to identify the HTML elements containing the desired data points.
Pagination is critical for accessing all ads across multiple pages, ensuring a complete dataset. Automating navigation and introducing delays between requests mimics human browsing behavior and reduces detection risks. Once collected, the data can be stored in structured formats for analysis. Below is an example Node.js script for scraping LeBonCoin ads.const puppeteer = require('puppeteer'); (async () => { const browser = await puppeteer.launch({ headless: true }); const page = await browser.newPage(); const url = 'https://www.leboncoin.fr/'; await page.goto(url, { waitUntil: 'networkidle2' }); const ads = await page.evaluate(() => { const adList = []; const items = document.querySelectorAll('.ad-card'); items.forEach(item => { const title = item.querySelector('.ad-title')?.textContent.trim() || 'Title not available'; const price = item.querySelector('.ad-price')?.textContent.trim() || 'Price not available'; const location = item.querySelector('.ad-location')?.textContent.trim() || 'Location not available'; adList.push({ title, price, location }); }); return adList; }); console.log(ads); await browser.close(); })();This script collects ad titles, prices, and locations from LeBonCoin.fr’s classified sections. Pagination handling allows the scraper to navigate through multiple pages and capture all available ads. Random delays between requests help avoid detection, ensuring smooth operation.
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Pagination is essential for scraping all available ads from LeBonCoin.fr. Classified ads are often spread across multiple pages, so automating navigation ensures that every listing is captured. Adding random delays between requests mimics real user behavior and reduces the likelihood of detection. This functionality enhances the scraper’s effectiveness, allowing for a more comprehensive analysis of trends. Proper pagination handling ensures that no valuable data is missed during the scraping process.
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Error handling is important for ensuring that the scraper remains functional despite updates to LeBonCoin’s layout. Missing elements, such as ad prices or locations, should not cause the scraper to fail. Adding conditional checks ensures smooth operation and provides logs for skipped entries, which can be reviewed later. Regular updates to the script keep it functional despite changes to the website’s structure. These measures improve the scraper’s adaptability and reliability over time.
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