Auto Inject All Services in .net core AutoFac - asp.net-core

Question

I have service base class and different subclasses inherit from it how I can inject all services implement this class
public abstract class AppService
{
public string ServiceName {get;set;}
}
and I have other classes
public class CountryService:AppService
{
public list<Countries> getCountryByName(string name){
return ......
}
}
public class TestService:AppService
{
public void Test(){
return ......
}
}
How I can auto inject any class inherit from AppService without need to add this class inside StartUp manually
Update*****************
I am using the following to register services in startUp
services.Configure<ServiceConfig>(config =>
{
config.Services = new List<ServiceDescriptor>(services);
config.Path = "/listservices";
});
ContainerSetup.InitializeWeb(Assembly.GetExecutingAssembly(), services);
and in Services project here is the container Setup :
public static IServiceProvider InitializeWeb(Assembly webAssembly, IServiceCollection services) =>
new AutofacServiceProvider(BaseAutofacInitialization(setupAction =>
{
setupAction.Populate(services);
setupAction.RegisterAssemblyTypes(webAssembly).AsSelf();
}));
public static IContainer BaseAutofacInitialization(Action<ContainerBuilder> setupAction = null)
{
var builder = new ContainerBuilder();
builder.RegisterAssemblyTypes(Assembly.GetExecutingAssembly())
.Where(t => t.BaseType == typeof(AppService))
.AsSelf();
setupAction?.Invoke(builder);
return builder.Build();
}
Still Getting the error
An unhandled exception occurred while processing the request.
InvalidOperationException: Unable to resolve service for type

Answer 1

You can use AutoFacs built in AssemblyScanning for this.
The following is an example that will register all classes that inherit from AppService as their concrete type.
builder.RegisterAssemblyTypes(Assembly.GetExecutingAssembly())
.Where(t => t.BaseType == typeof(AppService))
.AsSelf();
This will allow you to resolve CountryService or TestService from container.