Register a set of POCOs to be read from IConfiguration in Autofac

SettingsRegistrationSource.cs

    public class SettingsRegistrationSource : IRegistrationSource
    {
        public string Suffix { get; }

        public SettingsRegistrationSource(string suffix)
        {
            Suffix = suffix;
        }

        public IEnumerable<IComponentRegistration> RegistrationsFor(Service service, Func<Service, IEnumerable<IComponentRegistration>> registrationAccessor)
        {
            if (!(service is IServiceWithType swt))
            {
                return Enumerable.Empty<IComponentRegistration>();
            }

            var name = swt.ServiceType.Name;
            if (!name.EndsWith(Suffix))
            {
                return Enumerable.Empty<IComponentRegistration>();
            }

            var settingsSectionName = name.Substring(0, name.Length - Suffix.Length);

            var registration = new ComponentRegistration(
                Guid.NewGuid(),
                new DelegateActivator(swt.ServiceType, (c, p) =>
                {
                    var config = c.Resolve<IConfiguration>();
                    return config.GetSection(settingsSectionName).Get(swt.ServiceType);
                }),
                new CurrentScopeLifetime(),
                InstanceSharing.Shared,
                InstanceOwnership.OwnedByLifetimeScope,
                new[] {service},
                new Dictionary<string, object>());

            return new IComponentRegistration[] {registration};
        }

        public bool IsAdapterForIndividualComponents => false;
    }