Inject all implementers of an interface in .NET Core class constructors [duplicate]

Question

Suppose I have multiple implementations for an interface:

public void ConfigureServices(IServiceCollection services)
{
    // ...
    services.AddSingleton<IInterface, ImplementationA>();
    services.AddSingleton<IInterface, ImplementationB>();
    services.AddSingleton<IInterface, ImplementationC>();
    // ...
}

Is there any way to inject all of them directly in class constructors?

Create an IInterfaceCollection with an implementation that gathers all you IInterface implementations and inject that — Flydog57
– Flydog57, Commented Jun 28, 2020 at 18:17

Arman Ebrahimpour · Accepted Answer · 2020-06-29 02:17:41Z

4

Simply it's possible as follows using IEnumerable generic class:

class Foo
{
    public Foo(IEnumerable<IInterface> implementers)
    {
        // ...
    }
}

edited Jun 29, 2020 at 2:17

answered Jun 28, 2020 at 18:11

Arman Ebrahimpour

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