CODEWITHSUNDEEP
c#asp.net-web-api
TDD Junkie
TDD Junkie

Reputation: 243

How do I get the error message from an HttpResponse object in WebAPI?

I have a controller that generates an exception from the following code with the following message:-

public HttpResponseMessage PutABook(Book bookToSave)
{
   return Request.CreateErrorResponse(HttpStatusCode.Forbidden, "No Permission");
}

am testing this method with the following code:-

var response = controller.PutABook(new Book());
Assert.That(response.StatusCode,Is.EqualTo(HttpStatusCode.Forbidden));
Assert.That(response.Content,Is.EqualTo("No Permission"));

But am getting an error that the content is not "No Permission". It seems I can't cast the response to an HttpError either to get the message content "No Permission". The status code is returned fine. Just struggling to get the message content.

Upvotes: 24

Views: 49416

Answers (4)

Pr0mis PAtel
Pr0mis PAtel

Reputation: 350

read error message this way.

var ErrMsg = JsonConvert.DeserializeObject<dynamic>(response.Content.ReadAsStringAsync().Result);

Upvotes: 4

Nikoloz Pachuashvili
Nikoloz Pachuashvili

Reputation: 246

You can try the following:

var errorContent = await response.Content.ReadAsAsync<HttpError>();
Assert.That(errorContent.Message,Is.EqualTo("No Permission"));

Upvotes: 4

aiapatag
aiapatag

Reputation: 3430

Try this one. response.Content.ReadAsAsync<HttpError>().Result.Message;

Upvotes: 7

Kiran
Kiran

Reputation: 57949

As you figured in your comment, you could either use response.Content.ReadAsAsync<HttpError>() or you could also use response.TryGetContentValue<HttpError>(). In both these cases, the content is checked to see if its of type ObjectContent and the value is retrieved from it.

Upvotes: 21

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