nestjs replace service at runtime for a plugin system

Question

Plugin system for a nestjs app.

I have some kind of service that lives on "core" module. This module is supposed to be a black box, completely sealed. The only way to add new feature is to inject new modules on the system and, eventually, replace some services of the core module.

The problem: Ho do i replace a service at runtime? (@Injectable)

The idea is to replace the old class with a new one with enhanced feature.

For implementing plugins, adding custom logic to a black box, in a functional style. — Cristian

Maciej Sikorski Maciej Sikorski · Accepted Answer · 2020-03-17T09:15:12

@Module({
providers: [{provide: OldServiceClass, useClass: NewServiceClass}]
})
export class FeatureModule {}

nestjs replace service at runtime for a plugin system

1 Answers