how to return json error msg in asp.net web api?

Question

I would like to return a json errormessage but at the moment in fiddler I cannot see this in the json panel:

string error = \"An error just happened\";
JsonResul         


        

Answer 1

you can return JSON like below,

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

I recommend to use IHttpActionResult on your method return type instead HttpResponseMessage, if your api's method return type is IHttpActionResult. you can return like;

 return Content(HttpStatusCode.InternalServerError, response);

you can check also that link about best practice of error returning Especially @Daniel Little's answer is really useful.

I know the answer added to late but maybe stand someone in good stead.