System Design Architecture Examples

Public architecture examples covering streaming, chat, checkout, payment flows, retry pipelines, and API protection patterns.

• Netflix System Design — A high-level streaming platform design covering video ingestion, CDN delivery, personalization, and resilience under regional traffic spikes.
• WhatsApp Chat Architecture — A real-time messaging design focused on persistent connections, device delivery, offline queueing, and message durability.
• Payment Gateway Architecture — A checkout-to-settlement architecture that emphasizes idempotency, security boundaries, and asynchronous reconciliation.
• Kafka Retry Pipeline — An event-processing pipeline pattern for retries, backoff, poison messages, and dead-letter handling in Kafka-based systems.
• Rate Limiter System Design — A production-style rate limiting design for public APIs with low-latency checks, burst control, and multi-tenant quotas.
• Ecommerce Checkout Architecture — A checkout flow example covering cart reads, inventory reservation, payment authorization, order creation, and asynchronous fulfillment.