Monitoring serverless applications

on YouTube ↗23m

" summary

Builds a Node.js generative-art Twitter bot that fetches palettes from the ColorLovers API, renders PNGs with canvas, saves originals to S3 and posts every 12 hours via a Cloudflare cron trigger; deploys with the Serverless framework to AWS Lambda (functions often run for a few hundred milliseconds and suffer cold starts). Observability uses the Datadog Lambda forwarder, AWS X‑Ray and APM to get traces, logs, dashboards and a service map; notes that about half of AWS users now use Lambda.

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" chapters (7)

1. 0:00Introduction
2. 0:52Serverless vs traditional apps
3. 3:19Monitoring serverless environments
4. 14:03Building the demo bot
5. 18:20Coding the Lambda function
6. 20:50Instrumenting the function
7. 22:14Reviewing the dashboards

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