jsonserializer.serialize library failed - json

Question

public class Product
{
public int Id { get; set; }
public string ProductName { get; set; }
public int Quantity { get; set; }
}
public IActionResult Index()
{
var products = new List<Product>
{
new Product{Id = 1, ProductName= "Kulaklik", Quantity = 4},
new Product{Id = 2, ProductName= "Şarj Kablosu", Quantity = 6},
new Product{Id = 3, ProductName= "Akilli Saat", Quantity = 5}
};
string data = JsonSerializer.Serialize(products);
// return View();
TempData["x"] = 5;
ViewBag.x = 5;
ViewData["x"] = 5;
return RedirectToAction("Index2");
}
public IActionResult Index2()
{
var data = TempData["products"].ToString();
List<Product> products = JsonSerializer.Deserialize<List<Product>>(data);
return View();
}
I have an Asp.Net Core Mvc project.
I want to send data to another Action with JsonSerializer class.
But among the overloads of the Serializer method there is no method that expects only a single value. I wonder what package I need to add for Visual Studio?
serialize has a red line under it

Answer 1

You probably have installed both - Newtonsoft.Json and System.Text.Json serializers. Newtonsoft.Json.JsonSerializer.Serialize doesnt have an overload with one argument and it causes an error. So you have to use a namespace to use anther serializer
string data = System.Text.Json.JsonSerializer.Serialize(products);