Return Null JSON Response instead of empty response {}

Question

I have a WEB API that returns null data sometimes. I am expecting the below format as response

{"cardResponse" : null}

but I am getting {} as response. Any Idea?

My method Definition looks like:

public HttpResponseMessage Opeation(string input1, [FromUri] input2 request)

The return statement looks like :

return Request.CreateResponse(HttpStatusCode.OK, response);

Response Class Structure:

public class RootResponse    {

    public CardResponse cardResponse{ get; set; }

}

  Public class CardResponse  {

    public string CardName { get ; set;}  
}

Not an ASP expert here, but I'm pretty sure you'll need to post more code. What's the value of response in the last snippet? Show the code around that line — salezica
– salezica, Commented Jan 25, 2017 at 15:20

Sergey Berezovskiy · Accepted Answer · 2017-01-25 15:40:56Z

1

You have NullValueHandling option set to NullValueHandling.Ignore in your JSON formatter. Check WebApiConfig if there is default formatter replaced or someone could turn-off null values passing for default JsonMediaTypeFormatter.

edited Jan 25, 2017 at 15:40

answered Jan 25, 2017 at 15:35

Sergey Berezovskiy

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1 Comment

beast Over a year ago

Wow. Thanks alot :) Seems I have added that line.

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