In some of your projects, you might want to be able to listen to changes made on your database that are not performed through client-side mutations.

This sample project creates an AppSync API allowing you to listen to new items being created on a specific DynamoDB table through AWS AppSync subscriptions.

With this pattern, a Lambda function will be invoked for every new item created on a DynamoDB table. It will in turn call an AppSync mutation with data source set as None. An AppSync subscription will be subscribed to that mutation allowing end users to be notified of a newly created DynamoDB item.