The app for WYN Associates is being developed and we are slowly pushing out new features.
The source of this Hello World app is cited here. The tutorial provides a step-by-step instructions to build your first web application.
The diagram below provides a visual representation of the services used in this tutorial and how they are connected. This application uses AWS Amplify, Amazon API Gateway, AWS Lambda, Amazon DynamoDB, and AWS Identity and Access Management (IAM).