How can I parse JSON with C#?

Using System.Text.Json in .NET Core 3 and above.

public class Order
{
    public int Id { get; set; }
    public string OrderNumber { get; set; }
    public decimal Price { get; set; }
    public DateTime OrderDate { get; set; }


 var order = new Order()
 {
        Id = 100,
        OrderNumber = "OR-100",
        Balance = 39.99m,
        OrderDate = DateTime.Now
};

var json = JsonSerializer.Serialize(order);

// parsing json back into order object.

var order = JsonSerializer.Deserialize<Order>(json);

The next example uses NewtonSoft's Json.Net for converting Json into a dynamic object. If you have the relevant type for this JSON string then you can cast to that type by providing the generic parameter to the DeserializeObject method.

dynamic person = JsonConvert.DeserializeObject(
     @"{'Name': 'Jon Smith', 
        'Address': { 'City': 'New York', 'State': 'NY' }, 
        'Age': 42 }");

string name = person.Name;
string address = person.Address.City;

Jack Poorte

Last updated on Sep 30, 2023