The new quick-start uses AWS CloudFormation to create an Amazon Aurora MySQL database in a newly created VPC in your AWS account. The quick-start also provisions the AppSync API (including the schema, data source, and all resolvers) used as the application backend, the Cognito user pool used for authorization, and the resolver Lambda function that connects the database to AppSync. You can easily customize the CloudFormation template to connect to your existing Amazon Relational Database Service (RDS) databases, as well as customize the Lambda functions and GraphQL schema to reflect your application logic.