Kotlin and Spring boot a pleasant experience and some rough edges
summary
Prototype backend for projects/videos uses Kotlin + Spring Boot, Arrow and coroutines, with controllers → use‑cases → data‑sources layered design and Amazon S3 for storage; code uses Arrow for Either/Try and Kotlin coroutines with binding to compose async flows and model errors as sealed types, extension functions for mappers, and Spring repositories for query generation. Result: much smaller, compiler‑safe code and easier refactors, but a steep functional learning curve, awkward Spring + coroutine/testing integration, and some data‑source quirks that require workarounds.
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chapters (10)
- 0:00Start
- 7:14Easy for writing Test
- 8:02Big Community
- 9:11Support Static type language
- 11:04We don't need to be full async
- 11:28Clean Architecture
- 11:44Kotlin as main Languge
- 12:26functional data flow Arrow
- 12:59JWT authorization
- 47:55Greach Questions?
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