Koin: Allow nullable dependencies?

[caleb-allen]

Is it possible to provide an optional type?

I have application data that I'd like to inject, however the data isn't guaranteed at compile time and is fetched during runtime. Is it possible to inject a nullable type?

Currently I get the compile time error: inferred type User? is not a subtype of Any

Thanks in advance.

[caleb-allen]

I guess my question really is, is there a way to provide dependencies outside of the initial startKoin at the beginning? A way to create a new context only when it is needed?

[arnaudgiuliani]

Hello,

Koin doesn't provide any nullable inejction. I think that you could make a component that manage this behavior for you.

For example, you can have a ServiceManager:

ServiceManager(){

   var service : Service? = null

   fun createService(){
       // create your service
   }
}

And with Koin, inject the ServiceManager.

[caleb-allen]

Thanks! I think I'm getting the hang of DI practices and such, this makes much more sense.

[mbhantooa]

@arnaudgiuliani Is it something that could be added to Koin? My team members raised that issue lately. I understand the work around and was wondering why it was the case. It's not a technical limitation surely.