Error: cognitoidentitycredentials is not authorized to perform dynamodb describetable

What's Causing This Error

You may run into this error if the required identity-based policy to access the function describeTable() is not assigned to the IAM Role.

Solution: Here's How To Resolve It

To resolve the error, simply add the identity-based policy shown below to the IAM Role.

{
  "Version": "2012-10-07",
  "Statement":[
      {
        "Sid": "permission_for_describe_table",
        "Effect": "Allow",
        "Action":["dynamodb:DescribeTable"],
        // permit on all tables
        "Resource": "*"
      }
  ]
}