Learn AWS-LAMBDA with Real Code Examples
Updated Nov 25, 2025
Performance Notes
Automatic scaling with concurrency management
Cold-start latency varies by language/runtime
Memory and CPU allocation affects execution speed
Supports high-throughput workloads with scaling
Execution time limited to 15 minutes max per invocation
Security Notes
Use IAM roles to limit permissions
Encrypt sensitive data with KMS
Secure API Gateway endpoints with authorization
Validate inputs to prevent injection attacks
Monitor security via AWS CloudTrail and GuardDuty
Monitoring Analytics
CloudWatch Logs and Metrics
AWS X-Ray for tracing
Track function invocations and duration
Monitor throttling and errors
Use alarms and dashboards for operational visibility
Code Quality
Follow language-specific best practices
Keep functions small and stateless
Unit test each Lambda function
Use logging and monitoring for observability
Optimize memory and execution time for cost efficiency