convert json to c# object

Question

My c# model

public class Student
{
  public string id{get;set;}
  [System.Text.Json.Serialization.JsonPropertyName("ref")]
  public int @ref{get;set;}
}

My ASP.Net Core API method

[HttpPost]
public async Task<IActionResult> Get([FromBody] Student stu)
{
   var reference = stu.@ref;
   //Here stu.@ref is always 0.
   //JSON to C# model conversion doesnt work
}

Following is the request body

{
  "id":"74A",
  "ref":41
}

C# doesnt allow to declare variable name "ref", so i declared as "@ref" and decorated it with JsonPropertyName("ref"). However json to c# model deserialsation doesnt map ref to @ref.

Any solution or work around.

Seems to be invalid json. Have you tried https://json2csharp.com ? — Oliver, Jan 21 '22 at 11:25
Please post your actual code. `System.Text.Json.Serializer.JsonPropertyName` is not the right namespace, instead of `Serializer` it should be `Serialization`, which leads me to think there might be other problems as well. Do know that the *actual* property name of that property will be just `ref`, the `@` prefix is just to get the compiler to not treat it as the reserved keyword, the `@` will not actually be a part of the property name. — Lasse V. Karlsen, Jan 24 '22 at 08:25

score 2 · Answer 1 · answered Jan 21 '22 at 11:32

You JSON string is missing a " after id and therefore it is not parsing it correctly since it is invalid. Once you get the correct JSON string, then you should be able to parse it correctly to your Student class.

You can verify if your JSON is valid here: https://jsonlint.com/

Serge · Accepted Answer · 2022-01-21T12:29:13.623

1

Why you don' t change your property @ref to reference or something else? there are plenty another words, you don't need to use c# reserved

public class Student
{
  public string id{get;set;}
  [System.Text.Json.Serializer.JsonPropertyName("ref")]
  public int reference {get;set;}
}

edited Jan 21 '22 at 12:29

answered Jan 21 '22 at 11:42

Serge

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convert json to c# object

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