Custom SDK for: [web, Android, iOS] ?

[lukasMega]

My use case: provide a single source of truth — a single codebase for a custom SDK.

The SDK will:

• Provide public functions/methods for clients (integrators of this SDK):

  • Web app (TypeScript or JavaScript)
  • Android (Kotlin) - native app
  • iOS (Swift) - native app

• Export models (objects with typed fields) for integrators to use as inputs and outputs of the public functions

• Handle, under the hood:

  • Communication with the server using HTTP(S) (REST API) and WebSocket protocols
  • Authentication, session management, and related concerns
  • Basic client-side decisions based on server responses or hardcoded rules

It would be ideal to have a single codebase for this SDK. Is it possible?

I also asked Claude and ChatGPT and they recommend Kotlin Native for it.

BTW: I have already SDK written in TypeScript.