2017-12-28 DDDメモ - https://codezine.jp/article/detail/9837 - https://qiita.com/daijinload/items/5b34190e202cd59703f4 - https://www.slideshare.net/masuda220/ss-59756718 <- - https://qiita.com/yuku_t/items/2839e57a1933507f36b4