Best Practices
This section covers essential best practices for building production-ready AWS Lambda functions. Each topic provides detailed guidance, code examples, and recommendations.
Topics¶
| Practice | Description |
|---|---|
| Dynamic Configuration | Feature flags and runtime configuration with AWS AppConfig |
| Environment Variables | Secure and validated environment variable handling |
| Input Validation | Request validation with Pydantic models |
| Logger | Structured logging with AWS Lambda Powertools |
| Metrics | Custom CloudWatch metrics for business KPIs |
| Monitoring | CloudWatch dashboards and alarms |
| Tracer | Distributed tracing with AWS X-Ray |
External Resources¶
- Architecture Layers - Handler, logic, and data access layer patterns
- CDK Best Practices - Infrastructure as code patterns
- Idempotency - API idempotency with Powertools
- Testing Best Practices - Unit, integration, and E2E testing