[Question] Is there a way to pass parameters to a concrete type when registering?

[amura11]

Assuming I have the following:

interface IMyService {
	doTheThing(): void;
}

class MyService extends IMyService {
	 constructor(baseUrl: string) {
		this.baseUrl = baseUrl;
	}
	
	doTheThing(): void {
		//Do something here
	}
	
	private baseUrl!: string;
}

Is there a way to pass baseUrl when registering MyService with the container? Something like: container.addTransient<IMyService>(() => new MyService("BaseUrl"));? Coming from C# this is typically how it's done so I might just be approaching this completely wrong.

I want to set baseUrl at the time of registering as it will change depending on the environment.

[CKGrafico]

Hello and thanks for your question, if you want to pass the same baseUrl to all the instances of your service I think the good practise (in inversify) is to use a Factory https://github.com/inversify/InversifyJS/blob/master/wiki/factory_injection.md

If you want to have different baseUrl for each instance I usually create another method instead of passing to the constructor.

Please confirm, that this helped you and have a nice day.

[amura11]

Would it be possible to extend the container with something like:

class CustomContainer extends Container {
    public addDynamicTransient<T>(constructor: Constructor<T>, func: () => T): interfaces.BindingWhenOnSyntax<T> {
        const id = generateIdAndAddToCache(constructor);
        this.decorateCatchable(injectable(), constructor);

        return super.bind<T>(id).toDynamicValue(func).inTransientScope();
    }
}

const container = new CustomContainer();

container.addDynamicTransient<IMyService>(MyService, () => new MyService("BaseUrl"));

I tried exactly this but I get an error that no bindings were found

[CKGrafico]

Why are you extending the container and not using as factory?