using Microsoft.Extensions.DependencyInjection;
using System.Diagnostics.CodeAnalysis;

var services = new ServiceCollection();
services.AddTransient(typeof(IOptionsFactory<>), typeof(OptionsFactory<>));

var sp = services.BuildServiceProvider();

var options = sp.GetRequiredService<IOptionsFactory<RouteHandlerOptions>>().Create();
Console.WriteLine(options.ToString());


public sealed class RouteHandlerOptions
{
    public RouteHandlerOptions() { }

    public bool ThrowOnBadRequest { get; set; }
}

public interface IOptionsFactory<[DynamicallyAccessedMembers(DynamicallyAccessedMemberTypes.PublicParameterlessConstructor)] TOptions>
    where TOptions : class
{
    TOptions Create();
}

public class OptionsFactory<[DynamicallyAccessedMembers(DynamicallyAccessedMemberTypes.PublicParameterlessConstructor)] TOptions> :
    IOptionsFactory<TOptions>
    where TOptions : class
{
    public TOptions Create()
    {
        return Activator.CreateInstance<TOptions>();
    }
}