How to create IAM policy to access AWS DynamoDB table

Published by

Sagar Mendiratta

on

Do you know you can allow the user or group of IAM users to access AWS DynamoDB table with a single policy.

In this quick tutorial you will learn How to create IAM policy to access AWS DynamoDB table.

Lets get started.

Prerequisites

  • AWS account
  • You should have writes to create the IAM policy.

Creating IAM Policy to Access DynamoDB table

This section will show you the IAM policy which allows users or a group to access the DynamoDB table. Lets go through the code.

  • Version is the policy version which is fixed.
  • Effect is Allow in each statement as we want to Allow users or group be able to list all the DynamoDB table.
  • There are two statements in the IAM policy where
  • First statement allows to list and describe all the dynamoDB tables.
  • Where as Second statement allows specific table to be accessed by any user or role that is Mytable.
{
    "Version": "2012-10-17",
    "Statement": [
        {
            "Sid": "ListandDescribe",
            "Effect": "Allow",
            "Action": [
                "dynamodb:List*",
                "dynamodb:DescribeReservedCapacity*",
                "dynamodb:DescribeLimits",
                "dynamodb:DescribeTimeToLive"
            ],
            "Resource": "*",
        },
  {
            "Sid": "SpecificTable",
            "Effect": "Allow",
            "Action": [
                "dynamodb:BatchGet*",
                "dynamodb:DescribeStream",
                "dynamodb:DescribeTable",
                "dynamodb:Get*",
                "dynamodb:Query",
                "dynamodb:Scan",
                "dynamodb:BatchWrite*",
                "dynamodb:CreateTable",
                "dynamodb:Delete*",
                "dynamodb:Update*",
                "dynamodb:PutItem"
            ],
            "Resource": "arn:aws:dynamodb:*:*:table/MyTable"
        }
    ]
}

Conclusion

This tutorial demonstrated that how to create IAM policy to access AWS DynamoDB table.

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