Serverless from Scratch
summary
Openfit runs a 100% serverless stack on AWS using Lambda, API Gateway (26 endpoints), Cognito, DynamoDB, S3 + CloudFront and Lambda@Edge, with monitoring in DataDog and services like Recurly and Shopify for billing. The product handles ~45,000 users, ~400,000 qualified video plays and about 65 million service calls/month served by 206 Lambdas. Tuning memory/time cuts cost dramatically (example: ~$76 for 65M calls at a low-memory/long-duration profile), the site sees zero infra incidents from scaling since launch.
AI-written summary · about
chapters (14)
- 0:00Introduction and welcome
- 3:11What is Open Fit
- 6:46What is serverless
- 11:02Compatible workloads
- 13:10Scaling and concurrency
- 14:15Memory and time balance
- 15:39Security in serverless
- 19:36Cost efficiency
- 21:21Optimizing function costs
- 23:12Monitoring and observability
- 27:35Impact on business stakeholders
- 30:02Operations and stability
- 32:50Monitoring and logging
- 35:18Frontend and edge computing
