GardasarCode.Repository

Specifications

public abstract class UserSpecification
{
    public sealed class GetUserById : BaseSpecification<User>
    {
        public GetUserById(long id, bool asNoTracking)
        {
            AsNoTracking = asNoTracking;
            AddCriteria(i => i.Id == id);
        }
    }
}

Repository

var context = new DbContext(options);
var repo = new RepositoryBase<DbContext>(context);
var spec = new UserSpecification.GetUserById(user.Id, true);
var result = await repo.FirstOrDefaultAsync(spec);

Being supplemented.