public IActionResult Upload(IFormFile file)
{
List <MenuJson> menus = new List <MenuJson> {
};
SumsModel sums = new SumsModel {
};
using (StreamReader r = new StreamReader(file.OpenReadStream()))
{
string json = r.ReadToEnd();
menus = JsonConvert.DeserializeObject <List <MenuJson> >(json);
}
sums = _menuBLL.Calculate(menus);
return(View(sums));
}