Answers for "Register multiple implementations"

Register multiple implementations

services.AddScoped<Service1>();
services.AddScoped<Service2>();

services.AddScoped<Func<int, IContractService>>(serviceProvider=> key=>
{
    switch(key)
    {
        case 1:
           return serviceProvider.GetService<Service1>();
        case 2:
           return serviceProvider.GetService<Service2>();
        default:
            throw new Exception("Not valid key");
    }
});