.NET Core dependency injection -> Get all implementations of an interface

Question

I have a interface called IRule and multiple classes that implement this interface. I want to uses the .NET Core dependency injection Container to load all implementation of

Answer 1

It's just a matter of registering all IRule implementations one by one; the Microsoft.Extensions.DependencyInjection (MS.DI) library can resolve it as an IEnumerable. For instance:

services.AddTransient();
services.AddTransient();
services.AddTransient();
services.AddTransient();

Consumer:

public sealed class Consumer
{
    private readonly IEnumerable rules;

    public Consumer(IEnumerable rules)
    {
        this.rules = rules;
    }
}

NOTE: The only collection type that MS.DI supports is IEnumerable.