using AutoMapper;

using YourModels;

using YourViewModels;

namespace YourNamespace

{

    public class AutoMapperProfileConfiguration : Profile

    {

        protected override void Configure()

        {

            CreateMap<Application, ApplicationViewModel>();

            CreateMap<ApplicationViewModel, Application>();

            ...

        }

    }

}

private MapperConfiguration _mapperConfiguration { get; set; }

_mapperConfiguration = new MapperConfiguration(cfg =>

{

    cfg.AddProfile(new AutoMapperProfileConfiguration());

});

services.AddSingleton<IMapper>(sp => _mapperConfiguration.CreateMapper());

using AutoMapper;

using ...

namespace YourNamespace

{

    public class ApplicationsController : BaseController

    {

        [FromServices]

        private IMapper _mapper { get; set; }

        [FromServices]

        private IApplicationRepository _applicationRepository { get; set; }

        public ApplicationsController(

            IMapper mapper,

            IApplicationRepository applicationRepository)

        {

            _mapper = mapper;

            _applicationRepository = applicationRepository;

        }

        // GET: Applications

        public async Task<IActionResult> Index()

        {

            IEnumerable<Application> applications = await _applicationRepository.GetForIdAsync(...);

            if (applications == null)

                return HttpNotFound();

            List<ApplicationViewModel> viewModel = _mapper.Map<List<ApplicationViewModel>>(applications);

            return View(viewModel);

        }

        ...

}