C#•2mo ago

Inject multiple implementations of the same interface

what's the proper way to inject multiple implementations of the same interface?

public class FooBar{
     public FooBar(IInterface something){

     }
}
builder.Services.AddScoped<IInterface, Implementation1>();
builder.Services.AddScoped<IInterface, Implementation2>();

public class FooBar{
     public FooBar(IInterface something){

     }
}
builder.Services.AddScoped<IInterface, Implementation1>();
builder.Services.AddScoped<IInterface, Implementation2>();

is a setup like this possible? Which one is being injected? How to have different classes use different impelmentations without them using concrete dependencies of Implementation1 and Implementation2?

3 Replies

ThalnosOP•2mo ago

I see thank you "and adds to the previous one when multiple services are resolved via IEnumerable<IMyDependency>" Does that mean when my ctor takes a List<IInterface> then [implementation1, implementation2] is being injected or how does that work? got it thx /close $close

MODiX•2mo ago

If you have no further questions, please use /close to mark the forum thread as answered

ThalnosOP•2mo ago

can't mark the thread as answered somehow

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Inject multiple implementations of the same interface

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