Actor picture

Web Scraper

apify/web-scraper

Crawls arbitrary websites using the Chrome browser and extracts data from pages using a provided JavaScript code. The actor supports both recursive crawling and lists of URLs and automatically manages concurrency for maximum performance. This is Apify's basic tool for web crawling and scraping.

Author's avatarApify Technologies
  • Modified
  • Used by17,351 users
  • Used27,298,571 times

To run the code examples, you need to have an Apify account. Replace <YOUR_API_TOKEN> in the code with your API token.

const ApifyClient = require('apify-client');

// Initialize the ApifyClient with API token
const client = new ApifyClient({
    token: '<YOUR_API_TOKEN>',
});

// Prepare actor input
const input = {
    runMode: "DEVELOPMENT",
    startUrls: [
        {
            url: "https://apify.com"
        }
    ],
    linkSelector: "a[href]",
    pseudoUrls: [
        {
            purl: "https://apify.com[(/[\\w-]+)?]"
        }
    ],
    pageFunction: // The function accepts a single argument: the "context" object.
    // For a complete list of its properties and functions,
    // see https://apify.com/apify/web-scraper#page-function 
    async function pageFunction(context) {
        // This statement works as a breakpoint when you're trying to debug your code. Works only with Run mode: DEVELOPMENT!
        // debugger; 
    
        // jQuery is handy for finding DOM elements and extracting data from them.
        // To use it, make sure to enable the "Inject jQuery" option.
        const $ = context.jQuery;
        const pageTitle = $('title').first().text();
    
        // Print some information to actor log
        context.log.info(`URL: ${context.request.url}, TITLE: ${pageTitle}`);
    
        // Manually add a new page to the queue for scraping.
        // To make this work, make sure the "Use request queue" option is enabled.
        context.enqueueRequest({ url: 'http://www.example.com' });
    
        // Return an object with the data extracted from the page.
        // It will be stored to the resulting dataset.
        return {
            url: context.request.url,
            pageTitle
        };
    },
    proxyConfiguration: {
        useApifyProxy: false
    },
    initialCookies: [],
    waitUntil: [
        "networkidle2"
    ],
    breakpointLocation: "NONE",
    customData: {}
};

(async () => {
    // Run the actor and wait for it to finish
    const run = await client.actor("apify/web-scraper").call(input);

    // Fetch and print actor results from the run's dataset (if any)
    console.log('Results from dataset');
    const { items } = await client.dataset(run.defaultDatasetId).listItems();
    items.forEach((item) => {
        console.dir(item);
    });
})();