A modern programming language that makes developers happier.

kotlinlang

I am experimenting with implementing "typed ids" similar to those used by Stripe. See article <https://dev.to/stripe/designing-apis-for-humans-object-ids-3o5a>. I've played around with various implementations but nothing comes out very clean and elegant on both the data model side and the kotlinx-serialization side. Anyone have any thoughts / design ideas? Ideally I'd like to have the serializable class be as simple as `data class FooBar(val id: TypedUuid<FooBar>, …)` and the serialization of `id` be as simple as `fb_<uuid>`.

The "obvious" implementation of `TypedId` takes the prefix as a parameter and has a custom serializer that reads/writes the correct format. But that requires the prefix to be passed at all constructor call sites, which sucks.

<https://kotlinlang.slack.com/archives/C0B8MA7FA/p1735809739972849> this is a similar thread although not covering the KSerializer bit itself

here's the example with KSerializer implemented (very basically) <https://pl.kotl.in/qoA-nzqTp>

That requires a separate `Id` type for each model type. Any thoughts on making that generic?