上記のようにlambda関数を指定する。すると以下のようなログがCloudWatch Logsに出力される。 サインアップ前・・・サインアップ時にユーザーが送信する情報が含まれる { 'version': '1', 'region': 'ap-northeast-1', 'userPoolId': 'ap-northeast-1_XXXXXXXXX', 'userName': 'test-user-29', 'callerContext': { 'awsSdkVersion': 'aws-sdk-js-2.6.4', 'clientId': 'xxxxxxxxxxxxxxxxxxxxxxxxx' }, 'triggerSource': 'PreSignUp_SignUp', 'request': { 'userAttributes': { 'email': 'xxxxxxxxxxxx@sa
![AWS Cognito トリガーを使ってサインアップ・サインインのログを取る - Qiita](https://cdn-ak-scissors.b.st-hatena.com/image/square/ab0125ca73a4d339501e1f1a56adbdc9123a7884/height=288;version=1;width=512/https%3A%2F%2Fqiita-user-contents.imgix.net%2Fhttps%253A%252F%252Fcdn.qiita.com%252Fassets%252Fpublic%252Farticle-ogp-background-412672c5f0600ab9a64263b751f1bc81.png%3Fixlib%3Drb-4.0.0%26w%3D1200%26mark64%3DaHR0cHM6Ly9xaWl0YS11c2VyLWNvbnRlbnRzLmltZ2l4Lm5ldC9-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%26mark-x%3D142%26mark-y%3D57%26blend64%3DaHR0cHM6Ly9xaWl0YS11c2VyLWNvbnRlbnRzLmltZ2l4Lm5ldC9-dGV4dD9peGxpYj1yYi00LjAuMCZoPTc2Jnc9NzcwJnR4dD0lNDBvaXp1bWkteXV0YSZ0eHQtY29sb3I9JTIzMjEyMTIxJnR4dC1mb250PUhpcmFnaW5vJTIwU2FucyUyMFc2JnR4dC1zaXplPTM2JnR4dC1hbGlnbj1sZWZ0JTJDdG9wJnM9MTgwZjg3NjAxNTZkN2QyOGUzYzExOWFiNjJmODVmMmE%26blend-x%3D142%26blend-y%3D486%26blend-mode%3Dnormal%26s%3D8020ed647b3166528146064d4d5d8833)