Last Updated: November 21, 2025
Event Types
| Trigger | Use |
|---|---|
Viewer Request
|
Modify incoming headers |
Origin Request
|
Rewrite URL before origin |
Viewer Response
|
Adjust caching headers |
Origin Response
|
Transform responses |
Commands
aws lambda publish-layer-version
Publish layer
aws lambda create-function
Deploy entry
aws lambda add-permission
Allow CloudFront
Best Practices
Log execution, keep functions light, and track CloudWatch metrics.
💡 Pro Tip:
Keep deployments small, monitor cold starts, and avoid long loops.