Idempotency Support for Route Table and Network ACL Creation in Amazon VPC!

Amazon VPN now supports idempotency for route table and network ACL creation. You can incorporate a retry mechanism in your creation workflow without creating duplicate resources.

When creating route tables and network ACLs using the AWS CLI or API, you can now specify a clientToken parameter (--client-token) to achieve idempotency.

Sample AWS CLI command:

Now if we retry the RouteTable creation command using the same --client-token, it will return the same route table instead of creating a new one.

But if we retry with a different parameter (e.g. different VPC) and the same token, it will throw IdempotentParameterMismatch error.

For a demo, check the video below.