public async Task <IActionResult> Buy(int id)
{
var value = new byte[0];
if (HttpContext.Session.Keys.Contains("basket"))
{
value = HttpContext.Session.Get("basket");
}
if (!await db.IsAvailable(id))
{
return(RedirectToAction("Error",
new ErrorViewModel()
{
ActionName = "Catalog",
RequestInfo = "Product not available"
}));
}
HttpContext.Session.Set("basket", value.AddValue(id));
return(RedirectToAction("Basket"));
}
