Patterns for efficient serverless development
summary
Five concrete patterns for fast serverless development: use hexagonal architecture (ports-and-adapters) to isolate business logic and swap adapters for mocks or databases; run full-service simulation with LocalStack v3 (IM enforcement) to catch permission errors locally; prefer a lambda web adapter or “lambda‑lift” for familiar local testing but expect ~50–100 ms cold‑start overhead; favor zip runtimes over containers and avoid Lambda layers; create per‑ticket ephemeral (FM) environments and one account per stage to test against real cloud services.
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chapters (11)
- 0:00Introduction
- 1:05Testing challenges in serverless
- 6:23Serverless beyond Lambda
- 9:33LocalStack for simulation
- 12:18Lambda Lift pattern
- 15:52Local debugging with frameworks
- 18:02Remote testing approach
- 24:02Simplifying Lambda deployments
- 28:35Environment strategies
- 33:52Cell-based architectures
- 34:58Conclusion and Q&A
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