CVR lookups in Ruby and Rails

require "net/http"
require "json"

def get_company(cvr)
  uri = URI("https://apicvr.dk/api/v1/#{cvr}")
  res = Net::HTTP.get_response(uri)

  case res
  when Net::HTTPOK       then JSON.parse(res.body)
  when Net::HTTPNotFound then nil
  else raise "CVR-API svarede #{res.code}" # 422 eller 502
  end
end

company = get_company(24256790)
puts "#{company["name"]}, #{company["zipcode"]} #{company["city"]}"

company["ejere"].each do |owner|
  puts "#{owner["name"]} #{owner["ownership_range"]}"
end

require "net/http"
require "json"
require "erb"

def search(name)
  uri = URI("https://apicvr.dk/api/v1/search/fuzzy/#{ERB::Util.url_encode(name)}")
  JSON.parse(Net::HTTP.get(uri))
end

search("novo nordisk").first(5).each do |hit|
  puts "#{hit["cvr_number"]} #{hit["name"]} - #{hit["industrytext"]}"
end

# app/services/cvr_lookup.rb
class CvrLookup
  def self.call(cvr)
    Rails.cache.fetch("cvr/#{cvr}", expires_in: 6.hours) do
      res = Net::HTTP.get_response(URI("https://apicvr.dk/api/v1/#{cvr}"))
      res.is_a?(Net::HTTPOK) ? JSON.parse(res.body) : nil
    end
  end
end