ruby twitter gemで5000件以上フォロー/フォロワーのidを取得するやつ

fflist.rb

require "twitter"
rest = Twitter::REST::Client.new(key) #keyは各位適当に

def ff(method)
  return if ![:friend_ids,:follower_ids].include? method
  cursor = -1
  list = []
  until cursor == 0
  	res = rest.send(method).to_h
  	list += res[:ids]
  	cursor = res[:next_cursor]
  end
  list
end

ff(:friend_ids) #=> Array
ff(:follower_ids) #=> Array