{
  "Version": "2012-10-17",
  "Statement": [
    {
      "Sid": "ListYourObjects",
      "Effect": "Allow",
      "Action": "s3:ListBucket",
      "Resource": [
        "arn:aws:s3:::bucket-name"
      ],
      "Condition": {
        "StringLike": {
          "s3:prefix": [
            "cognito/application-name/${cognito-identity.amazonaws.com:sub}/*"
          ]
        }
      }
    },
    {
      "Sid": "ReadWriteDeleteYourObjects",
      "Effect": "Allow",
      "Action": [
        "s3:DeleteObject",
        "s3:GetObject",
        "s3:PutObject"
      ],
      "Resource": [
        "arn:aws:s3:::bucket-name/cognito/application-name/${cognito-identity.amazonaws.com:sub}/*"
      ]
    }
  ]
}