AWS Cloud Map introduces a new API for retrieving the revision of your services. It allows your applications to update the state of your cloud resources only when it has changed, minimizing the discovery traffic and API cost. With AWS Cloud Map, you can define custom names for your application resources, such as Amazon Elastic Container Services (Amazon ECS) tasks, Amazon Elastic Compute Cloud (Amazon EC2) instances, Amazon DynamoDB tables, or other cloud resources. You can then use these custom names to discover the location and metadata of cloud resources from your applications using AWS SDK and authenticated API calls.
Source:: Amazon AWS