public void Post([FromBody] Ember újEmber)
        {
            AdatokContext context = new AdatokContext();

            context.Embers.Add(újEmber);
            context.SaveChanges();
        }
        public void Delete(int id)
        {
            AdatokContext context = new AdatokContext();
            var           törlés  = (from x in context.Embers
                                     where x.Id == id
                                     select x).FirstOrDefault();

            context.Remove(törlés);
            context.SaveChanges();
        }