felipecsl / wombat

Lightweight Ruby web crawler/scraper with an elegant DSL which extracts structured data from pages.
https://felipecsl.github.io/wombat/
MIT License
1.31k stars 129 forks source link
crawler dsl ruby scraper

Wombat

Gem Version Code Climate Coverage Status FOSSA Status

Web scraper with an elegant DSL that parses structured data from web pages.

Usage:

gem install wombat

Scraping a page:

The simplest way to use Wombat is by calling Wombat.crawl and passing it a block:

require 'wombat'

Wombat.crawl do
  base_url "https://www.github.com"
  path "/"

  headline xpath: "//h1"
  subheading css: "p.alt-lead"

  what_is({ css: ".one-fourth h4" }, :list)

  links do
    explore xpath: '/html/body/header/div/div/nav[1]/a[4]' do |e|
      e.gsub(/Explore/, "Love")
    end

    features css: '.nav-item-opensource'
    business css: '.nav-item-business'
  end
end
The code above is gonna return the following hash:
{
  "headline"=>"How people build software",
  "subheading"=>"Millions of developers use GitHub to build personal projects, support their businesses, and work together on open source technologies.",
  "what_is"=>[
    "For everything you build",
    "A better way to work",
    "Millions of projects",
    "One platform, from start to finish"
  ],
  "links"=>{
    "explore"=>"Love",
    "features"=>"Open source",
    "business"=>"Business"
  }
}

This is just a sneak peek of what Wombat can do. For the complete documentation, please check the links below:

Wiki

API Documentation

Changelog

Contributing to Wombat

Contributors

Copyright

Copyright (c) 2019 Felipe Lima. See LICENSE.txt for further details.

License

FOSSA Status