About This Architecture

Multi-AZ mobile productivity app architecture with WAF, CloudFront CDN, and Application Load Balancer protecting traffic across two availability zones. API Gateway routes requests to microservices (Auth, Room, Alarm, Leaderboard, Payment, Profile) running on ECS, with Focus Session Lambda handling serverless workloads and external integrations via Razorpay and Agora/Twilio APIs. PostgreSQL Primary/Standby with read replicas, ElastiCache Redis, DynamoDB Sessions, and S3 storage provide resilient data persistence across AZ-1 and AZ-2. CloudWatch monitoring and SNS notifications ensure operational visibility and alerting for this production-grade mobile backend.

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How do I architect a highly available mobile app backend on AWS with microservices and multi-AZ failover?

This diagram shows a production AWS architecture spanning two availability zones with ECS microservices (Auth, Room, Alarm, Leaderboard, Payment, Profile), RDS PostgreSQL Primary/Standby for database failover, ElastiCache Redis for caching, and DynamoDB for sessions. WAF and CloudFront protect the mobile user traffic, while API Gateway routes to services, and CloudWatch/SNS provide monitoring and