Disable Newtonsoft changing JSON case [duplicate]-CodePudding

I have a document which has a field:

{
   FOB: "..."
}

However when I return it:

    [HttpGet("{documentRef}")]
    public ActionResult<Ten> Get(string documentRef)
    {
        var data = _service.FindOneTen(documentRef);
        if (data != null) return data;
        Response.StatusCode = 400;
        return NotFound();
    }

It is converted to this:

{
    fob: "..."
}

How can I stop this happening / Why is this happening?

I've seen examples of people using

PropertyNamingPolicy = null;

To disable it for MVC / the normal JSON which I tried and didn't work.

Startup:

    public void ConfigureServices(IServiceCollection services)
    {
        services.AddControllers().AddNewtonsoftJson();
    }

Edit

While Objects exposed on JSON web-api - how to stop the property names changing case? is solving the problem in one way, I would rather not need to specify for every field in the model.

CodePudding user response：

use this

services.AddControllers().AddNewtonsoftJson(options=>
{
    options.SerializerSettings.ContractResolver = new DefaultContractResolver() {  };
});

CodePudding user response：

If you're using .net core. You can try use default .net core serializer, it should preserve the original casing.

System.Text.Json.JsonSerializer.Serialize()

And also, you need to config in Startup.ConfigureServices()

services.AddMvc().AddJsonOptions(o => o.JsonSerializerOptions.PropertyNamingPolicy = null);

If you need to use Json.net then use this

services.AddMvc().AddNewtonsoftJson(o =>
{
o.SerializerSettings.ContractResolver = new DefaultContractResolver();
});