S2E7: Advanced AWS Lambda

09/05/2025 46 min Temporada 2 Episodio 7
S2E7: Advanced AWS Lambda

Listen "S2E7: Advanced AWS Lambda"

Episode Synopsis

In this episode of "From Cover to Code", Michael & Angela take AWS Lambda to the next level with live demos, opinionated advice, and a few laughs along the way.This discussion covers:* Error-handling tactics – synchronous vs. asynchronous invocations, DLQs, and why API Gateway sometimes hides your 500s.* Tracing, logging & metrics – setting up AWS X-Ray and reading traces that flag cold starts, retries and faults.* Scaling & concurrency – live Java demo shows Lambda spinning up extra instances (watch the function IDs change).* Versioning, aliases & traffic shifting – when they help, and when they just add risk.* Cold-start realities – why they now affect less than 1 % of invocations and when provisioned concurrency is (or isn’t) worth the bill.* State, VPCs, layers & custom runtimes – persist data the right way and plug Lambda into the rest of your stack.📂 Code from the episodeGrab every demo (Java *and* Python) in the repo:https://github.com/covertocode/season-2-programming-aws-lambda/tree/main/chapter-8-advanced-aws-lambdaFind us online at covertocode.com.Hosted by:Angela A.  @scooterphoenix Michael J.  @managedkaos ​