Build cost effective Asynchronous GraphQL APIs using Serverless.

on YouTube ↗17m

" summary

Event-driven serverless API that uses AWS Lambda behind API Gateway to run a GraphQL endpoint, with SQS-driven workers updating DynamoDB and OpenSearch asynchronously so resolvers read from OpenSearch for faceted make/model queries and from DynamoDB by VIN for single-item reads. Uses infrastructure-as-code, real API integrations pushed as events, and fallback realtime calls when caches miss. Migration from a Scala EC2 monolith to this pattern yields about 70% cost reduction while improving responsiveness.

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" chapters (7)

1. 0:00Intro to async GraphQL APIs
2. 2:55Traditional backend problems
3. 6:05Monolith to event-driven
4. 8:35Async event benefits
5. 10:45Architecture overview
6. 13:18GraphQL resolver & SQS
7. 15:24Cost & performance gains

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