https://note.com/hiroyu0510/n/nc9a4738fd2a8https://dev.classmethod.jp/articles/api-with-dynamodb-using-aws-cdk-in-python/https://qiita.com/hito2ru/items/076b2971e7a7faf1f1cahttps://blog.i-tale.jp/2021/01/d1/やってみたいなぁ。