Serverless to Functionless
Sharing Jakub's insights on moving from serverless to functionless.
I love sharing my thoughts here, but sometimes someone else says it better. That's the case this week. I want to share an excellent post from fellow AWS Community Builder, Jakub Gaj.
Last week, Jakub delivered a talk called Moving from Serverless to Functionless at AWS Dev Day Copenhagen. The talk wasn’t recorded, but the slides are available on Speakerdeck. The talk is based on a blog post of the same name from a couple of years ago.
In his post, Jakub shares his experience orchestrating various AWS services with Step Functions without relying on Lambda functions. Jakub manages to build a complete application using this pattern. It's amazing what you can do with a directed acyclic graph defined in JSON these days. The post flags some of the potential pitfalls too.
I'm a big fan of this "functionless" approach. It reduces the amount of code you need to maintain. Where business logic is needed, it is isolated from the integration code. You don't need a Lambda to move data from one service to another. JSONata does a great job of performing simple to moderately difficult data transformations.
Many of the integrations and automated workflows I build are functionless, or at least “functionless first”. Go read Jakub's post. It will motivate you to refactor your workflows. 🌊
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