url_parser.rb

def parse_url(url)
  # p url
  regex = /^(?<scheme>https?):\/{2}(?<subdomain>w{3})\.(?<domain>\w+)(?<top_level_domain>\.\w+)\/?(?<path>[\w\/]+)\??(?<query_params>[&=\w]*)/
  match_data = url.match(regex)
  # p match_data
  #<MatchData "http://www.lewagon.com" scheme:"http" subdomain:"www" domain:"lewagon" top_level_domain:".com">
  query_params = match_data[:query_params].scan(/(\w+)=(\w+)/)
  # p query_params #=> [["search", "currywurst"]]
  params = {}
  query_params.each do |param|
    # ["search", "currywurst"]
    params[param[0].to_sym] = param[1]
  end
  # p params
  {
    scheme: match_data[:scheme],
    subdomain: match_data[:subdomain],
    domain: match_data[:domain],
    top_level_domain: match_data[:top_level_domain],
    path: match_data[:path].split('/'),
    params: params
  }
end