How to serialise Exception to Json
Since this has not really been answered yet: Just create a Dictionary containing the error properties you want, serialize it using JSON.NET and put it into a HttpResponseMessage:
catch (Exception e){ var error = new Dictionary<string, string> { {"Type", e.GetType().ToString()}, {"Message", e.Message}, {"StackTrace", e.StackTrace} }; foreach (DictionaryEntry data in e.Data) error.Add(data.Key.ToString(), data.Value.ToString()); string json = JsonConvert.SerializeObject(error, Formatting.Indented); HttpResponseMessage response = new HttpResponseMessage(); response.Content = new StringContent(json); return response;}I hope this can help some people out.