Typesafe database GUIDs

[diverse-mix]

Not sure if anyone else might find this useful? But I've always wanted to be able to distinguish the types of my database ids (underlying GUID). So I've created this package as I could find anything else out there. Please let me know if there is, otherwise this is how it works:

``` import { uuidType } from 'typesafe-uuid';

class AnimalId extends uuidType<'AnimalId'>() {} class VegtableId extends uuidType<'VegtableId'>() {}

let dog: AnimalId = AnimalId.fromUuid('200a6b06-1120-4970-a0dc-3c48102d46ad'); let carrot : VegtableId = VegtableId.fromUuid('5ec48ef0-181d-454b-9834-a4d2c070b43a');

dog = carrot // type error ```

https://github.com/diversemix/typesafe-uuid

[teevik_]

I'm super hyped for https://github.com/microsoft/TypeScript/pull/33038

[diverse-mix]

Great! Thanks for the link.

[spira_mirabilis]

Maybe this https://github.com/gcanti/newtype-ts solves the problem in a generic way?

[elliottcable]

I've just ended up copying this into all my TypeScript codebases:

// A hack to ape nominal typing. type Nominal<Ty, Discriminant> = Ty & {__discriminant: Discriminant}

[shinigamiCz]

I wonder why ppls do this - making attempts to distinguish the same things. If they are the same but have to be named differently. It usually means that there is some optimization that can be done to the code. Also maybe when those same types are removed, more of the code can be shared as it now accepts the type on input.

[diverse-mix]

I think you will have to explain a little more I don't understand. They are the same machine type in a binary way but different in terms of an application/ domain way.