About This Architecture

Multi-AZ food coupon QR system leveraging AWS WAF, CloudFront, Route 53, and dual Application Load Balancers across us-east-1a and us-east-1b for high availability. Traffic flows through CloudFront CDN to Route 53, then ALBs routing to EC2 Registration and QR Scan APIs, ECS QR Generator, and Lambda functions for duplicate checking and report generation. RDS MySQL Primary/Standby, DynamoDB Global Tables, ElastiCache Redis replicas, and SQS event queues ensure data consistency and resilience across availability zones. This architecture demonstrates enterprise-grade fault tolerance, auto-scaling capabilities, and operational monitoring via CloudWatch, solving critical uptime and data integrity challenges for large-scale coupon distribution. Fork and customize this diagram on Diagrams.so to adapt subnet ranges, instance types, or add additional AWS services like SNS or Kinesis. Consider adding VPC Flow Logs and AWS Config for enhanced compliance and security auditing.

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How do I design a highly available multi-AZ AWS architecture for a food coupon QR scanning and distribution system?

This diagram shows a production-grade multi-AZ setup spanning us-east-1a and us-east-1b with dual ALBs, RDS MySQL Primary/Standby, DynamoDB Global Tables, and Lambda functions for duplicate detection and reporting. CloudFront CDN and Route 53 provide global distribution and intelligent routing, while SQS queues decouple scan events for asynchronous processing, ensuring fault tolerance and scalabil