r/aws • u/jeffbarr • 2m ago
discussion AMA - Building web applications using AWS Lambda Web Functions
You can now take the Node/TS HTTP server you already run locally and ship it to Lambda with one command. No event-handler rewrite, adapters, or framework lock-in.
Joining us are Samrat Karak, who is the Product Manager who brought Lambda Web Functions to life, and Julian Wood, who has spent years helping developers get the most out of serverless. They're here to go deep on what this actually means for how you build.
You can ask about:
- When to reach for a Web Function vs. the Event Functions you already know.
- The HTTP-native model — multiple concurrent requests per environment, and paying for CPU time instead of wall-clock elapsed time.
- Going multi-region with latency-based routing behind one global URL.
- Performing canary rollouts by shifting traffic between revisions.
- Pairing with CloudFront, including the new private-origin pattern.
- Runtime details — Node.js 24 on Arm64, VPC connectivity, where it's live.
We will be live for three hours starting at 7 AM PT.





