microservices-patterns
Provides microservices design patterns for service decomposition, API gateway, circuit breakers, saga orchestration, and inter-service communication. Use when designing or implementing microservices architecture.
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技能原文 SKILL.md
Microservices Patterns
Service decomposition, communication, resilience, and orchestration patterns.
Service Decomposition
| Pattern | Description | Use When | |---------|-------------|----------| | Domain-Driven | Align services with bounded contexts | Complex business domains | | Data-Ownership | Service owns its data store | Data isolation required | | Team-Aligned | One service per team | Large organizations |
Communication Patterns
Sync: HTTP/gRPC
\\\`yaml
API Gateway routing
routes:
- match: { prefix: /orders } route: { cluster: order-service }
- match: { prefix: /users } route: { cluster: user-service }
\\\`
Async: Message Queue
\\\ Producer → Exchange → Queue → Consumer (Topic) (DLQ on failure) \\\
Use async for: event propagation, eventual consistency, load leveling.
Resilience Patterns
Circuit Breaker
\\\typescript // Example with opossum const breaker = new CircuitBreaker(fetchUserProfile, { timeout: 3000, errorThresholdPercentage: 50, resetTimeout: 30000, }); \\\
Retry with Backoff
\\\typescript async function retryWithBackoff(fn, maxRetries = 3) { for (let i = 0; i < maxRetries; i++) { try { return await fn(); } catch (e) { await sleep(Math.pow(2, i) * 1000); } } throw new Error('Max retries exceeded'); } \\\
Data Patterns
| Pattern | Consistency | Complexity | Use When | |---------|-------------|------------|----------| | Saga (orchestration) | Eventual | High | Complex multi-service transactions | | Saga (choreography) | Eventual | Medium | Simple event chains | | Event sourcing | Eventual | High | Audit trail, time travel | | Shared database | Strong | Low | Anti-pattern, avoid |
API Gateway
Tools: Kong, AWS API Gateway, Envoy, NGINX.
Responsibilities: routing, auth, rate limiting, request transformation, load balancing.
Observability Stack
- Distributed tracing: Jaeger / Tempo
- Metrics: Prometheus + Grafana
- Logs: ELK / Loki
- Service mesh: Istio / Linkerd (adds mTLS, traffic management)
Related Skills
backend-architect— single-service architectureevent-sourcing-architect— event sourcing patternskubernetes-architect— deployment patternsdeployment-engineer— CI/CD for microservices