From 1 to 101 Lambda Functions in Production: Evolving a Serverless Architecture–Slobodan Stojanovic

on YouTube ↗23m

" summary

Case study of growing a serverless product from one Lambda to a hundred plus, claiming a production fleet of 112 Lambda functions that now serves millions of requests. Architecture migrates from API Gateway + ad hoc Express to AWS AppSync + DynamoDB event store with EventBridge, CQRS and hexagonal architecture + CQRS for testability and onboarding. Built a GraphQL frontend, reduced code, improved speed, kept costs low (total bill about $7k since 2018 with ~$2k paid after credits) and reports near‑zero downtime.

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" chapters (10)

1. 0:00Start
2. 4:29Web Dashboard
3. 5:41Why Serverless
4. 10:53Introducing Infrastructure as a Code
5. 12:15Things We Changed
6. 12:52Downsides
7. 16:01Challenges
8. 19:29Integration Test
9. 20:09Debugging and Monitoring
10. 21:29Summary

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