Look Ma! No servers!
summary
Builds a demo forum that uses AWS Lambda, API Gateway, DynamoDB, S3 and CloudFront, chaining events so writes to DynamoDB trigger other Lambdas, SNS and SES without any EC2 or Beanstalk. Shows a live Lambda created from the console, capacity examples (1 → 10 → 100 req/s, raising concurrency limits and small cost numbers), performance tradeoffs like cold starts and memory-linked CPU with latencies from ~130ms down to tens of ms, and operational pain points: eventual consistency, debugging and immature tooling, plus created a microservice in 10 minutes.
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chapters (15)
- 0:00Introduction
- 2:44Application overview
- 4:34API Gateway
- 9:05lambda functions
- 12:46production ready
- 13:35scaling
- 15:27email amazon
- 20:00microservices
- 21:17Dragons
- 25:15Treasure
- 26:27Unit tests
- 30:17Features
- 35:41Questions
- 43:19Monitoring
- 46:34Mirroring
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