Scraping websites & re-engineering a privacy-friendly social media widget
I will explain how you can automatically scrape data from third-party websites with your Rails application, using Nokogiri. This will include some basics of XPath to find nodes within an HTML document.
I will then explain in detail how you can scrape data from a website widget of a large international social media website, and how you can use the data to re-create the widget so that it conforms with German and EU privacy laws. :-)