How to instantiate any class with Nest DI without injecting them into the provider?

[hushed jewel]

I have a class and i want to instantiate the class on demand witht the Nest DI and get the class instance with all the injections, i did this in adonisjs using containers (https://docs.adonisjs.com/guides/concepts/dependency-injection#using-the-container-directly) but i cannot find something similar in NestJS.

[cerulean kiln]

So, you want to create the instance on demand/when you want, but you want Nest to do the injections for you?

[hushed jewel]

yes

[cerulean kiln]

The closest thing I could think of would be to inject the ModuleRef and the create https://docs.nestjs.com/fundamentals/module-ref#instantiating-custom-classes-dynamically

[hushed jewel]

do i need to inject the class into providers before doing this?

[cerulean kiln]

Just the ModuleRef class, from what I remember

I haven't used this approach much

[hushed jewel]

okay let me try this

i need to decorate the classes with @Injectable

[cerulean kiln]

Almost guaranteed

[hushed jewel]

Hi, how do i get the metadata i set on the class with dcoarator

[cerulean kiln]

What metadata are you looking for in particular?

[hushed jewel]

metadata set by SetMetadata

[cerulean kiln]

Then you'll probably use the Reflector class to get the metadata by the same key you used to set it

https://docs.nestjs.com/fundamentals/execution-context#reflection-and-metadata