Koin: Override on the fly declarations (declare)

[erikhuizinga]

Is your feature request related to a problem? Please describe.

I try to declare a single on the fly. However, I might do that multiple times if the latest value only is to be available to Koin.

When I do the following, I get a org.koin.core.error.DefinitionOverrideException, logically, because the definition already exists.

koin.declare(x)

// Some point later in time, x is updated and we want to replace its value

koin.declare(x) // Exception!

Describe the solution you'd like

I want to override any existing declaration, but there's no such option. This seems easy to implement, because declare under the hood creates a BeanDefinition, which could also use the override option. However, I cannot enable override through declare.

Describe alternatives you've considered

My current alternative is a singleton:

object Holder {
    lateinit var x: Any
}

which I use as a Koin single { Holder.x } and every time I update x I update Holder.x.

Target Koin project

Koin 2.0 in an Android lib.

[arnaudgiuliani]

Yeah, we should allow to set override attribute of the given definition

[cortinico]

Hey 👋 I'm also interested in this feature. I drafted a proposal here #488. Please let me know what you think @arnaudgiuliani :)

[arnaudgiuliani]

let me check that 👍