About This Architecture
Serverless REST API using API Gateway, Lambda functions, and DynamoDB with global replication for multi-region resilience. Cognito User Pool secures user authentication while four Lambda functions (128MB each) handle Create, Read, Update, and Delete operations against a DynamoDB Items Table. IAM Roles enforce least-privilege access, and CloudWatch monitors Lambda execution for operational visibility. Fork this diagram to customize function memory, add caching layers, or extend to additional AWS regions.