Request.Cookie - Cookie is not sent or not excepted - asp.net-mvc

Question

I'm developing a shopping cart function.
I need product data from the server that used to render the shopping cart page.
Every time the Add-to-cart button is hit, I stringify this array ( using JSON.stringify() ):
var CART = [{productId: 102, quantity: 3} , {productId: 211, quantity: 6}];
I want to get this data using Request.Cookie["shoppingCart"] in my ASP.NET application,
but when I debug It is always null
This is what the browser return when I call document.cookie
"shoppingCart=[{\"productId\":101617121,\"quantity\":2}]"
But when I try to change the value of the cookie to something like: shoppingCart=testresult ,
the Request.Cookie["shoppingCart"] then has value.
Thank you in advance for helping me!

Answer 1

I solved it.
First, I tried to remove some special chars which are: " and , .
And Request.Cookie then had values. So it seems like ASP.NET just doesn't except these characters in cookie value. ( Tell me if I'm wrong please )
My solution was instead of convert JSON string, I used this formular for each product in the shopping cart : var item = `{productId}:{quantity}`; .
For example:
var sampleCookie = "11231:16:15121:8";
Split the string with : char then use a simple code to get the data.
My code for this:
string cookie = Request.Cookies["shoppingCart"];
var cartItems = new List<CartItem>();
if (cookie != null && cookie.Length > 0)
{
string[] values;
values = cookie.Split(':');
int i = 0;
while (i < values.Length)
{
cartItems.Add(new CartItem()
{
ProductId = values[i],
Quantity = Convert.ToInt32(values[i+1])
});
i += 2;
}
}