IocApplicationModule.cs

using Autofac;
using Core;
using SampleApplication.AppServices;
using SampleApplication.Commands;
using SampleApplication.Models;
using SampleApplication.ViewModels;
using SampleApplication.Views;

namespace SampleApplication
{
    public class IocApplicationModule : Module
    {
        protected override void Load(ContainerBuilder builder)
        {
            base.Load(builder);

            builder.RegisterType<Repository>().As<IRepository>().AsSelf().SingleInstance();

            builder.RegisterType<LandingPageNavigationService>().As<ILandingPageNavigationService>().AsSelf().SingleInstance();
            builder.RegisterType<AppCache>().As<IAppCache>().AsSelf().SingleInstance();

            builder.RegisterType<UpdateProviderLocationsCommand>().As<IUpdateProviderLocationsCommand>().AsSelf();

            //TODO: get rid of 2 kinds of bindings for validator
            builder.RegisterType<AppointmentValidator>().As<IModelValidator<Appointment>>().AsSelf();
            builder.RegisterType<AppointmentValidator>().Named<IModelValidator>(nameof(Appointment)); //for generic entry

            builder.RegisterType<MainViewModel>().Named<IViewModel>(Constants.Navigation.MainPage);
            builder.RegisterType<AppointmentViewModel>().Named<IViewModel>(Constants.Navigation.AppointmentPage);
            builder.RegisterType<AuthViewModel>().Named<IViewModel>(Constants.Navigation.AuthPage);
            builder.RegisterType<ProviderListViewModel>().Named<IViewModel>(Constants.Navigation.ProviderListPage);
            builder.RegisterType<AppointmentScheduleViewModel>().Named<IViewModel>(Constants.Navigation.AppointmentSchedulePage);

            builder.RegisterType<MainPage>().Named<IView>(Constants.Navigation.MainPage);
            builder.RegisterType<AuthPage>().Named<IView>(Constants.Navigation.AuthPage);
            builder.RegisterType<ProviderListPage>().Named<IView>(Constants.Navigation.ProviderListPage);
            builder.RegisterType<AppointmentPage>().Named<IView>(Constants.Navigation.AppointmentPage);
            builder.RegisterType<AppointmentSchedulePage>().Named<IView>(Constants.Navigation.AppointmentSchedulePage);
        }
    }
}