Solution #

1. Structure Diagram

The below diagram is structure diagram of ATM application

The below diagram is structure diagram of client application:

• AWS S3: store the RSA 256 public keys
• AWS Secret Manager: store the secret environments & RSA 256 private keys
• AWS API Gateway (HTTP API): create, publish, maintain, monitor, and secure APIs
• AWS Lambda Function: NodeJS function (javascript)
• AWS Cloudfront + S3: Hosting the frontend (HTML, CSS, JS & other static files)
• AWS DynamoDB & DAX: Document database
• AWS CloudWatch: Observability AWS resources
• Serverless framework: Run the code locally & ship the code to AWS by using CloudFormation
• VueJS 3 with composition APIs
• TailwindCSS 3: CSS framework (Rapid build website without leaving HTML)