public async Task<IEnumerable<Articolo>> FillArticoliFromCompanyAsync(
            IEnumerable<Product> products)
        {
             await Task.Run(async () =>
             {
                foreach (var product in products)
                {
                    var article = await GetArticoloAsync(product.Codart);
                    if (article != null && !article.Equals(product))
                        await UpdateArticolo(product, article);

                    else
                    {
                        var articolo = new Articolo();
                        Mapper.Map(product, articolo);
                        _articoli.Add(articolo);
                    }
                }
            });
            return _articoli;
        }

        private async Task UpdateArticolo(Product product, Articolo articolo)
        {
            articolo.Price= product.RanCodiva;
            ...

            await _ctx.SaveChangesAsync();
        }