iam-role-policy.json

{
    "Version": "2012-10-17",
    "Statement": [
        {
            "Sid": "Stmtxxxxxxxx",
            "Effect": "Allow",
            "Action": [
                "dynamodb:PutItem",
                "dynamodb:Scan"
            ],
            "Resource": [
                "arn:aws:dynamodb:ap-northeast-1:データ蓄積のテーブル",
                "arn:aws:dynamodb:ap-northeast-1:セッションID一覧のテーブル"
            ]
        }
    ]
}