About This Architecture

High-throughput catalog API on AWS combines Route 53 DNS failover, CloudFront CDN, and API Gateway with AWS WAF and Shield for edge security. Traffic routes through an Application Load Balancer to EKS clusters spanning two availability zones, each running catalog-api deployments with HPA auto-scaling backed by ElastiCache Redis, Aurora PostgreSQL with read replicas, and OpenSearch for search. Observability layers include CloudWatch, X-Ray, Prometheus, and Grafana, while EventBridge, SQS, and MSK handle async workloads and event streaming. This architecture demonstrates multi-AZ resilience, caching strategies, and observability best practices for APIs serving millions of requests. Fork and customize this diagram on Diagrams.so to match your region, instance types, or add additional services like DynamoDB or Neptune.

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How do I design a high-throughput catalog API on AWS with multi-AZ failover and caching?

This diagram shows a production catalog API using Route 53 DNS failover, CloudFront CDN, and API Gateway fronting EKS clusters in two AZs. ElastiCache Redis provides caching, Aurora PostgreSQL with read replicas handles persistence, and OpenSearch powers search—all monitored via CloudWatch, X-Ray, Prometheus, and Grafana for end-to-end observability.