npm package discovery and stats viewer.

Discover Tips

  • General search

    [free text search, go nuts!]

  • Package details

    pkg:[package-name]

  • User packages

    @[username]

Sponsor

Optimize Toolset

I’ve always been into building performant and accessible sites, but lately I’ve been taking it extremely seriously. So much so that I’ve been building a tool to help me optimize and monitor the sites that I build to make sure that I’m making an attempt to offer the best experience to those who visit them. If you’re into performant, accessible and SEO friendly sites, you might like it too! You can check it out at Optimize Toolset.

About

Hi, 👋, I’m Ryan Hefner  and I built this site for me, and you! The goal of this site was to provide an easy way for me to check the stats on my npm packages, both for prioritizing issues and updates, and to give me a little kick in the pants to keep up on stuff.

As I was building it, I realized that I was actually using the tool to build the tool, and figured I might as well put this out there and hopefully others will find it to be a fast and useful way to search and browse npm packages as I have.

If you’re interested in other things I’m working on, follow me on Twitter or check out the open source projects I’ve been publishing on GitHub.

I am also working on a Twitter bot for this site to tweet the most popular, newest, random packages from npm. Please follow that account now and it will start sending out packages soon–ish.

Open Software & Tools

This site wouldn’t be possible without the immense generosity and tireless efforts from the people who make contributions to the world and share their work via open source initiatives. Thank you 🙏

© 2024 – Pkg Stats / Ryan Hefner

puppeteer-infinite-scroller

v1.0.2

Published

Provides a simple and efficient solution for scraping data loaded through infinite scrolling on web pages using Puppeteer.

Downloads

9,012

Readme

Puppeteer Infinite Scroller

NPM Version contributions welcome

Puppeteer-Infinite-Scroller provides a simple and efficient solution for scraping data loaded through infinite scrolling on web pages using Puppeteer.

Installation

You can install the package using npm:

npm install puppeteer-infinite-scroller

Usage

Import the puppeteerInfiniteScroller function from the package and use it to scrape data from infinite scrolling web pages.

const puppeteer = require("puppeteer");
const puppeteerInfiniteScroller = require('puppeteer-infinite-scroller');

(async () => {
  const pageUrl = "https://infiniteajaxscroll.com/examples/blocks/";
  const browser = await puppeteer.launch();
  const page = await browser.newPage();
  await page.setViewport({
    width: 1200,
    height: 800,
  });

  await page.goto(pageUrl);
  await page.waitForSelector(".blocks .blocks__block");

  const options = {
    scrollDelay: 1000,      // Milliseconds between scrolls
    itemCount: 50,          // Number of items to scrape
    selector: '.blocks .blocks__block',      // CSS selector for items
    // OR
    // pageFunction: () => { /* Custom page function for scraping */ }
  };

  const scrapedData = await puppeteerInfiniteScroller(page, options);

  console.log(scrapedData);

  await browser.close();
})();

Options

The following options can be configured when using the puppeteerInfiniteScroller function:

  • scrollDelay (optional): Milliseconds between scrolls. Default is 1000ms.
  • itemCount (optional): Number of items to scrape. Default is 10.
  • selector (optional): CSS selector for the items. Either this or pageFunction must be provided.
  • pageFunction (optional): Custom function for scraping data from the page. Either this or selector must be provided.

Example with pageFunction option

const puppeteer = require("puppeteer");
const puppeteerInfiniteScroller = require('puppeteer-infinite-scroller');

(async () => {
  const pageUrl = "https://infiniteajaxscroll.com/examples/blocks/";
  const browser = await puppeteer.launch();
  const page = await browser.newPage();
  await page.setViewport({
    width: 1200,
    height: 800,
  });

  await page.goto(pageUrl);
  await page.waitForSelector(".blocks .blocks__block");

  function extractElements() {
    const items = [];
    const extractedElements = document.querySelectorAll(".blocks .blocks__block");
    for (let element of extractedElements) {
      items.push({
        class: element.getAttribute("class"),
        id: element.getAttribute("id"),
        tagName: element.tagName,
      });
    }
    return items;
  }

  const options = {
    scrollDelay: 1000,      // Milliseconds between scrolls
    itemCount: 50,          // Number of items to scrape
    pageFunction: extractElements
  };

  const scrapedData = await puppeteerInfiniteScroller(page, options);

  console.log(scrapedData);

  await browser.close();
})();

License This project is licensed under the MIT License - see the LICENSE file for details.