ruby httparty在帖子后获得响应url或id

response

request

url      = "http://example.com/redirects/to/www"
response = HTTParty.get(url)
response.request.last_uri.to_s
# => "http://www.example.com"

get_change_log_id = HTTParty.post('http://localhost:3000/change_logs.xml', parameters).to_a

get_change_log_id.each do |r|
  r.each do |sub|
    sub2 = sub.to_a
      sub2.each do |s|
        if s.index "id"
          @change_log_id = s.to_s.sub(/[i]/, '').sub(/[d]/, '')
        end
      end
  end
end