AWS Lambda Health Probes Cheat Sheet

Synthetic monitoring for functions

Last Updated: November 21, 2025

Focus Areas

Focus
Schedule synthetic invocations
Assert structure and latency in responses

Commands & Queries

aws lambda invoke --function-name api-test payload.json out.json
Call the function
aws cloudwatch put-metric-alarm --alarm-name lambda-probe
Alert on failure
aws logs tail /aws/lambda/api-test
Inspect logs

Summary

Health probes keep Lambda visibility ahead of customer traffic.

💡 Pro Tip: Run probes from multiple regions and keep golden responses small.
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