fixer.io task for currencies rates

update.rake

namespace :currency do
  task :update do
    uri = URI("http://data.fixer.io/api/latest")
    params = { :access_key => ENV['FIXERIO_ACCESS_KEY'] }
    uri.query = URI.encode_www_form(params)
    res = Net::HTTP.get_response(uri)

    if res.is_a?(Net::HTTPSuccess)
      body = JSON.parse(res.body)

      body["rates"].each do |currency, rate|
        puts "#{currency} ==>>> #{rate}"
      end
    end
  end
end