public class CoreBuildingMappings : AutoMapper.Profile
    {
        public CoreBuildingMappings()
        {
            CreateMap<TBuilding, CoreBuilding>()
                .ForMember(d => d.Name, o => o.MapFrom(s => s.LongName))
                .ForMember(d => d.Tenant, o => o.MapFrom(s => s.Mandator))
                .ForAllMembers(o => o.ExplicitExpansion());

            CreateMap<TBuilder, OpsBuilder>()
                .ForAllMembers(o => o.ExplicitExpansion());
            CreateMap<TCity, OpsCity>()
                .ForAllMembers(o => o.ExplicitExpansion());
        }
    }

public static async Task<ICollection<TModel>> GetAsync<TModel, TData>(this IQueryable<TData> query, IMapper mapper, ODataQueryOptions<TModel> options, HandleNullPropagationOption handleNullPropagation = HandleNullPropagationOption.Default);
public static async Task<IQueryable<TModel>> GetQueryAsync<TModel, TData>(this IQueryable<TData> query, IMapper mapper, ODataQueryOptions<TModel> options, HandleNullPropagationOption handleNullPropagation = HandleNullPropagationOption.Default);

    public class CoreBuildingController : ODataController
    {

	private readonly IMapper _mapper;
        public CoreBuildingController(MyDbContext context, IMapper mapper)
        {
            Context = context;
            _mapper = mapper;
        }

        MyDbContext Context { get; set; }

        [HttpGet]
        public async Task<IActionResult> Get(ODataQueryOptions<CoreBuilding> options)
        {
            return Ok(await Context.BuildingSet.GetQueryAsync(_mapper, options));
        }
    }