YARP - Startup with custom configuration provider

yarp-startup-config-custom-config-provider.cs

public class Startup
{
    private readonly IConfiguration _configuration;

    public Startup(IConfiguration configuration)
    {
        _configuration = configuration;
    }

    public void ConfigureServices(IServiceCollection services)
    {
        services
            .AddSingleton<IProxyConfigProvider>(new CustomProxyConfigProvider())
            .AddReverseProxy();
            //.LoadFromConfig(_configuration.GetSection("ReverseProxy"));
    }

    public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
    {
        if (env.IsDevelopment())
        {
            app.UseDeveloperExceptionPage();
        }

        app.UseRouting();
        app.UseEndpoints(endpoints =>
        {
            endpoints.MapReverseProxy();
        });
    }
}