MagicScraper

Scrapes and displays data from the web page based on rules.

This script should not be not be installed directly. It is a library for other scripts to include with the meta directive // @require https://update.greasyfork.org/scripts/471264/1222840/MagicScraper.js

Author
aolko
Version
0.1
Created
2023-07-20
Updated
2023-07-20
License
N/A

Define your rules object (either inline or external)

const rules = {
  // Your rules object here
};

Define the options

const options = {
  keepChildren: false, // Set to true if you want to retain children of scraped elements
};

Call the scraper function with the rules object or the external URL.

magicScraper(rules, [options]);
// OR
magicScraper('https://example.com/rules.json', [options]);

Rules definition

const rules = {
  // Global rules for the entire example.com domain
  'example.com': {
    title: 'h1',
    content: '.main-content',
    pages: {
      // Specific rules for the homepage of example.com
      '/': {
        subtitle: '.subtitle',
        featuredImage: '.featured-image',
      },
      // Fallback rules for any other page under example.com
      '*': {
        defaultTitle: 'h2',
      },
    },
      // Specific rules for any page under the blog subdomain
      'blog.example.com/*': {
        blogTitle: '.blog-title',
        blogContent: '.blog-content',
      },
      // Wildcard rules for any subdomain under example.com
      '*.example.com': {
        subdomainTitle: '.subdomain-title',
      },
      // Wildcard rules for any page under the about subdomain
      'about.example.com/*': {
        aboutSection: '.about-section',
      }
  },
  // Global rules for the entire test.com domain
  'test.com': {
    title: 'h1',
    testContent: '.test-content',
  },
  // Fallback rules for any other domain not specified above
  '*': {
    defaultTitle: 'h1',
    defaultContent: '.main-content',
  },
};