Migrate to Microsoft JSON

Question

Hi,

I want to migrate all my newtonsoft json's to Microsoft's JSON. Can you helo with below sample and how to migrate it please?

var client = new HttpClient();

client.BaseAddress = new Uri("https://www.mydomain.com/pin.php");

var content = new FormUrlEncodedContent(new[]
{
    new KeyValuePair<string, string>("email", TextEmail.Text.Trim()),
});

var response = await client.PostAsync("https://www.mydomain.com/pin.php", content);

var result = await response.Content.ReadAsStringAsync();

dynamic data = JsonConvert.DeserializeObject(result);

Thank you
Jassim

Answer 1

Right-click the project in Solution Explorer, select “Manage NuGet packages…”, go to Browse tab, type “System.Text.Json” and install this package.

Then try this code:

using System.Dynamic;  
using System.Text.Json;  
. . .  
string result = "{\"a\":\"hello\", \"b\":1}";  
  
dynamic data = JsonSerializer.Deserialize<ExpandoObject>( result );  
  
string a = data.a.GetString( );  
int b = data.b.GetInt32( );  

Using dynamic is not always reasonable. Usually, it is more convenient to define a class for required fields, such as:

class MyData  
{  
 public string a { get; set; }  
 public int b { get; set; }  
}  

Then you will write:

MyData data = JsonSerializer.Deserialize<MyData>( result );  
  
string a = data.a;  
int b = data.b;  

Adjust it according to further operations, which were not shown.

See also DeserializeAsync and https://learn.microsoft.com/en-us/dotnet/standard/serialization/system-text-json-migrate-from-newtonsoft-how-to.

Answer 2

How about the count of the data? is it possible using data.Count or the only way is to loop?

Answer 3

Done. Thank you

https://learn.microsoft.com/en-us/answers/questions/213485/count-json39s-result-1.html