twitter list members to Redis

gistfile1.rb

def get_lists(key,screen_name,list_slug)
  redis = Redis.new

  #max listmember 500 and per request 20 member
  if 25 >= Twitter.rate_limit_status.remaining_hits
    return false
  end

  next_cursor='-1'

  while next_cursor != 0 do
    members = Twitter.list_members(screen_name,list_slug,{'cursor'=>next_cursor,'skip_status'=>true})
    next_cursor = members['next_cursor']
    #we need only id and screen_name
    members['users'].each do |member|
      redis.rpush(key,{'id'=>member['id'],'screen_name'=> member['screen_name']}.to_json)
    end
  end
  return true
end