Microservices & API Gateway

Distributed service architecture patterns

Microservices Architecture

Microservices with API Gateway

API Gateway: Single entry point — auth, rate limiting, routing, protocol translation
Service Discovery: How services find each other (Consul, K8s DNS)
Circuit Breaker: Prevent cascade failures — fail fast when downstream is unhealthy
Saga Pattern: Distributed transactions across services using compensating actions
CQRS: Separate read and write models for different optimization
Event Sourcing: Store events instead of current state — full audit trail
Sidecar Pattern: Attach utility containers (logging, proxy) alongside main container