• outline

Like VPC endpoint for S3, using VPC endpoint for dynamodb is good for security and cost optimization by using only AWS private network. But, it is easy to forget to use VPC endpoint for dynamodb.

• how-to-use

Create VPC endpoint "com.amazonaws.<region>.dynamodb" and include Route tables on proper VPC.

• reference

https://docs.aws.amazon.com/amazondynamodb/latest/developerguide/vpc-endpoints-dynamodb.html