How to get API response key values in PascalCase as same as the object variable name in .net core 3.1 only for one controller or one function?

Question

This is my Object Class

public class MyObject
{
   Public string Var1 { get; set; }
   Public string Var2 { get; set; }
}

This is a get function of my controller class

[HttpGet]
    public IActionResult GetObjList()
    {
      return Ok(new GenericModel<List<MyObject>>
      {
            Data = myobjectList
      });
 }

The GenericModel contains

public class GenericModel<T>
{
    public T Data { get; set; }
    public string[] Errors { get; set; }
}

My expected result look like this

{
"Data": [
    {
        "Var1": "val1",
        "Var2": "val2"
    }
        ]
}

But I'm getting this,

{
"data": [
    {
        "var1": "val1",
        "var2": "val2"
    }
        ]
}

I just want to get the output key values as same as the object variables, (in PascalCase) I tried the solutions to add "AddJsonOptions" into the Startup.cs but they did not work. And I want the response as Pascal case, only for this controller requests, not in all requests including other controllers. (Sounds odd, but I want to try it) Are there any solutions? Is is impossible?

score 0 · Answer 1 · answered Sep 29 '22 at 06:42

0

There may be another solution but I suggest building ContentResult yourself with JsonSerializer:

[HttpGet]
public IActionResult GetObjList()
{
    return this.Content(JsonSerializer.Serialize(yourResult, yourJsonOption), "application/json");
}

answered Sep 29 '22 at 06:42

Luke Vo

17,859
21
105
181

score 0 · Answer 2 · answered Sep 29 '22 at 06:55

0

For Pascal Case serialization use this code in Startup.cs:

services.AddControllers().AddJsonOptions(options =>
        {
            options.JsonSerializerOptions.PropertyNamingPolicy= null;
        );

answered Sep 29 '22 at 06:55

Kazi Rahiv

529
3
6

Thank you. This is working. Is there any way to implement this method only for selected controller classes? If I do the above method in Startup.cs, my existing code will break. I just wanted to change my code base step by step without affecting all the code at once. – SupunV Sep 29 '22 at 07:21
Glad to know that, Please accept the answer then. About using in specific controller action, you can use options while serializing like this var person = JsonSerializer.Parse(json, options); – Kazi Rahiv Sep 29 '22 at 07:24

How to get API response key values in PascalCase as same as the object variable name in .net core 3.1 only for one controller or one function?

2 Answers2