(Update on 16th Oct 2023) After working with VTL for a good two weeks or so, I've found it easy to pick up and to be proficient with it. Thus, direct integration will be my default go-to mode if it's CRUD operations without complex business logic.
Recently I've been working knee-deep in getting API Gateway to directly integrate with DynamoDB. While the performance appears to be faster without going through an intermediary Lambda, the trouble of having to be proficient in VTL makes me rethink if direct integration is a wise choice.
I'm just rehashing a few articles that I found useful:
- Build different integrations and ran performance tests. Best of all, codes are available too: https://www.readysetcloud.io/blog/allen.helton/serverless-integration-speed-test/
- Some common struggles when working with direct integrations and how to overcome them: https://www.readysetcloud.io/blog/allen.helton/direct-integrations-arent-scary/
- A fun but meaningful Gopher Holes deployment: https://github.com/allenheltondev/gopher-holes-unlimited/blob/master/openapi.yaml
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