HttpClient response ReadAsAsync() doesn't fully deserialize object

Question

I'm trying to consume a web service with the Web API client library. My problem is that the ReadAsAsync doesn't seem to want to fully deserailize the returned object when the submitting function uses a POST method.

If I get the response as a string and manually deserailize it works. (I get a apmsgMessage with all the fields populated)

HttpClient client = GetClient();
var response = client.PostAsJsonAsync("api/robot/Preview", ad).Result;
var msg = response.Content.ReadAsStringAsync();
return JsonConvert.DeserializeObject<apmsgMessage>(msg.Result);

I originally tried the code below which returns an apmsgMessage Object, but all the fields are null.

HttpClient client = GetClient();
var response = client.PostAsJsonAsync("api/robot/Preview", ad).Result;
var msg = response.Content.ReadAsAsync<apmsgMessage>().Result;
return msg;

My question is why dosn't my orginal (the PostAsJsonAsync) return a apmsgMessage fully populated. Am I doing somethign wrong with the ReadAsAsync?

Could you share the wire format of the json that is returned and also the type 'apmsgMessage'? — Kiran
– Kiran, Commented Feb 23, 2013 at 0:56

Joe Enos · Accepted Answer · 2013-09-25 16:58:52Z

5

I just had the same issue, and in my case I solved it by removing the [Serializable] attribute from the class.

I don't know why this attribute conflicts with the deserialization process, but as soon as I took that out, the ReadAsAsync method worked as expected.

answered Sep 25, 2013 at 16:58

Joe Enos

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2 Comments

Kyrylo Over a year ago

Thanks, saved my day! Question author should mark this answer as a solution.

granadaCoder Over a year ago

Gaaaaaaaaaaaaaaaaaa. This seems the exact opposite of what it should be. 3 hours on this. Thanks for this answer. #whatInTheWorld

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