E-commerce High Traffic
E-commerceScalable storefront with CDN, search, event-driven orders, and payment processing
11 nodes10 connections
Use Case
High-traffic stores, flash sales, marketplace platforms
Stack Breakdown
CDNNext.jsExpressKafkaPostgreSQLElasticsearch
Architecture Layers
1Edge/CDN
2Frontend
3Load Balancer
4API Services
5Event Bus
6Data & Search
Components by Category
infra
CDNNginx
frontend
Next.js
backend
ExpressNestJS
database
RedisPostgreSQLElasticsearch
async
KafkaQueue Worker
external
Stripe
Why This Topology Works
CDN absorbs read traffic, Kafka decouples order processing from search indexing, and Elasticsearch provides sub-50ms product queries. Each tier scales independently under load spikes.
Scaling Notes
CDN handles 90%+ of read traffic. Kafka consumers auto-scale for order processing. Elasticsearch cluster shards across availability zones for resilience.
Observability
Distributed tracing across API Gateway → services → Kafka consumers. Elasticsearch slow-query logs alert on degraded search performance.