Deserialization of types without a parameterless constructor, a singular parameterized constructor, or a parameterized constructor annotated with 'JsonConstructorAttribute' is not supported

[nssidhu]

I am trying to store object that has

public class AuthInfo
  {
      public string AuthToken { get; set; }
      public string FristName { get; set; }
      public string LastName { get; set; }

      public string DisplayName { get; set; }

      public string Email { get; set; }

      public string CountryDialingCode { get; set; }

      public string TelePhone { get; set; }

      public List<Claim> Claims { get; set; }
  }

await _localStorage.SetItemAsync<AuthInfo>("AuthInfo",authInfo);

Microsoft.AspNetCore.Components.WebAssembly.Rendering.WebAssemblyRenderer[100] Unhandled exception rendering component: Deserialization of types without a parameterless constructor, a singular parameterized constructor, or a parameterized constructor annotated with 'JsonConstructorAttribute' is not supported. Type 'System.Security.Claims.Claim'. Path: $.Claims[0] | LineNumber: 9 | BytePositionInLine: 5.

Do i have option to instead use newtonsoft for serialization & deserialization ?

[nssidhu]

I used the suggestion from this post and now using json.net since it provide the capability to write custom convert.

https://stackoverflow.com/questions/28155169/how-to-programmatically-choose-a-constructor-during-deserialization

[chrissainty]

Hi @nssidh,

The JSON serialiser is replaceable. See the server sample project for an example where it has been replaced with a Newtonsoft JSON one (samples/BlazorServer/Program.cs)

[nssidhu]

builder.Services.Replace(ServiceDescriptor.Scoped<IJsonSerializer, NewtonSoftJsonSerializer>()); This one replaces for the whole application.

Is there one just for your Blazored Component ( and that too may be temporarily for such odd objects and then revert back to default one) ?

[chrissainty]

This is for Blazored LocalStorage. The IJsonSerializer interface is from this library.

[chrissainty]

Closing as there is nothing else to do.