"Need help building a Node JS website scraper – any tips or libraries you recommend?"
Hey folks! 👋
I'm trying to build a node js website scraper for a side project, but I'm kinda stuck. There are *so* many libraries out there—Cheerio, Puppeteer, Playwright—and I'm not sure which one’s best for my needs.
I need something that’s fast but can also handle JS-heavy sites. Any recommendations? Also, if you’ve got tips on handling errors or rate-limiting, that’d be awesome.
Oh, and if you’ve got a favorite tutorial or GitHub repo, drop a link!
Thanks in advance! 🚀
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*PS: If you’ve built a node js website scraper before, how did you deal with CAPTCHAs? Ugh, those are the worst.*
If you’re building a node js website scraper, Playwright is worth a look too! It’s like Puppeteer but with multi-browser support (Chromium, Firefox, WebKit).
I’ve found it more stable for heavy JS sites. For errors, wrap your calls in try-catch and add retries with exponential backoff—`p-retry` lib is great for this.
CAPTCHAs are the worst… I’ve had some luck with stealth plugins to avoid them, but YMMV.
Honestly, for a node js website scraper, it depends on the site. If it’s mostly static, Cheerio’s lightning fast. For dynamic stuff, Puppeteer or Playwright.
Error handling? Always log errors to a file and retry failed requests. For rate limits, space out your requests—`setTimeout` is your friend.
CAPTCHAs… yeah, good luck. Maybe try residential proxies?
Playwright > Puppeteer IMO. Better API, less flaky. For a node js website scraper, it’s my top pick.
Handling errors? Use `playwright-test` for retries. Rate-limiting? Limit concurrency with `p-limit`.
CAPTCHAs are brutal… sometimes you just gotta accept defeat.
If you’re new to scraping, start with Cheerio + axios. It’s simpler and teaches the basics. Then level up to Puppeteer for JS-heavy sites.
For rate-limiting, `got-scraping` is a cool lib—handles headers, retries, etc.
CAPTCHAs? Try `puppeteer-extra-plugin-stealth`—might help avoid some.
Hey everyone! Wow, didn’t expect so many awesome replies—thanks a ton! 🙌
I think I’ll start with Puppeteer since most of you recommended it for JS-heavy sites. Gonna check out that `puppeteer-cluster` lib too for parallel scraping.
Quick follow-up: Anyone got tips on handling sessions/cookies? Some sites log me out mid-scrape, and it’s annoying.
Also, big thanks for the CAPTCHA sympathy lol. I’ll try `puppeteer-extra-stealth` and see if it helps.
Cheers! 🚀
Puppeteer’s great, but it can be slow. For a faster node js website scraper, try `jsdom` if the site’s not too complex.
Error handling? Always validate selectors and add timeouts. For CAPTCHAs… yeah, that’s a rabbit hole. Maybe use a paid service like Anti-Captcha.