Philipp Kuznetsov

I think the problem is that you need some kind of "realtime orchestration" – and thus completely different tools designed for that. It seems like an product development problem – probably you need to use some message queue (RabbitMQ, Kafka) and own processing gateway service (maybe another Lambda) that'll react to those inputs.

TypeScript is a statically typed language out of the box, with that bringing all the benefits of compilation time code checking. It also has some nice structures and patterns such as union types, exhaustive check and a great and lightweight IDE – VisualStudioCode, providing more level of helpers and control over your TS code than JS. TypeScript is fully interoperable with JS and one can disable all the strictness on demand or choose proper level of it depending of the technology and business needs.