parse image on google search

nokogiri_ex.rb

require 'uri'
require 'open-uri'
require 'net/http'
require 'bundler/inline'
require 'securerandom'

gemfile do
  source 'https://rubygems.org'
  gem 'nokogiri'
end

def get(url)
  uri = URI.parse url
  resp = Net::HTTP.get_response(uri)
  Nokogiri::HTML.parse(resp.body)
end

def download_image(image_url)
  ext = image_url.split('.').last
  filename = "#{SecureRandom.hex}.jpg"
  URI.open(image_url) do |img|
    File.open(filename, 'wb') do
       _1.write(img.read)
     end
  end
end

o = get('https://www.google.com/search?q=effector+board&tbm=isch&ved=2ahUKEwjKwLnNoe_sAhVYet4KHcwmBgkQ2-cCegQIABAA&oq=effector+board&gs_lcp=CgNpbWcQAzIECCMQJzoKCAAQsQMQgwEQBDoHCAAQsQMQBDoECAAQBDoHCCMQ6gIQJzoCCAA6BQgAELEDOgYIABAFEB46BggAEAgQHjoECAAQHlCTjgZY7b8GYLbBBmgCcAB4AYABhAWIAZQYkgEMMS4xMS4xLjIuMC4xmAEAoAEBqgELZ3dzLXdpei1pbWewAQrAAQE&sclient=img&ei=yfWlX4q4MNj0-QbMzZhI&bih=274&biw=1034&hl=en')

o.css('img').map { _1.attributes['src'].value }
 .filter { _1.include?('https://') }
 .each { download_image _1 }