How to take a full page screenshot with Ruby and Puppeteer

Install Puppeteer and Grover

npm i puppeteer
gem install grover

Configure Grover

require 'grover'

Grover.configure do |config|
  config.options = {
    full_page: true
  }
end

Take full page screenshot and save to file

File.open("full-page.png", "wb") do |f|
  f.write(Grover.new('https://www.bbc.co.uk/news/business-63709754').to_png)
end

Find out how to capture an element with Ruby and Puppeteer.