ASP.NET Web API Throw Exception

Question

I'm trying to throw an exception from my Web API controller. The problem is that my JavaScript code doesn't get any data back.

throw new HttpResponseException(HttpStatusCode.NoContent);

In my jQuery ajax function I don't get anything back. I get undefined back from the ajax call. So basically what is the proper way of handling errors from the server?

Lasse Vabe Rolstad · Accepted Answer · 2013-01-18 13:17:07Z

1

I feel very stupid right now, i tried a diffrent StatusCode and now i actully got some data back. I assumed every statusCode woulde return some value. This status code literaly returns NoContent.

answered Jan 18, 2013 at 13:17

Lasse Vabe Rolstad

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2 Comments

Darrel Miller Over a year ago

FYI: "No Content" is actually a 204 status code. Any status code in the 2XX range is considered successful by the client. Therefore, throwing an exception and returning NoContent is a bit of a contradiction. You are probably looking for either BadRequest or NotFound as your status code.

Dmitry S. Over a year ago

The HTTP status code 204 makes the GET verb act like the HEAD verb, meaning no data should be returned. You should return the HTTP status code 200 or some other 2xx status. And I agree with Darrel that throwing a 2xx status code as an exception does not look right semantically.

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