I have created a self hosted WEB API, which works pretty well. While returning an object through HttpResponseMessage, I get an exception in the client code. Exception reads - "The underlying connection was closed: An unexpected error occurred on a receive." and the Message is "An error occurred while sending the request.". Kindly see attachment.
Client Code:
internal async Task<object> AddBuiltInAsync(string featureType, Dictionary<string, string> specAttr)
{
int rc = -1;
object returnedFeatureId = null;
try
{
FormUrlEncodedContent formContent = new FormUrlEncodedContent(specAttr);
string jsonSpecAttr = JsonConvert.SerializeObject(specAttr);
HttpResponseMessage response = await Client.PostAsync($"DWGImplODA/AddBuiltIn?featureType={featureType}&jsonSpecAttr={jsonSpecAttr}", formContent).ConfigureAwait(false);
if (response.IsSuccessStatusCode)
{
object returnedFeatureId = await response.Content.ReadAsAsync<object>().ConfigureAwait(false);
// returnedFeatureId = JsonConvert.DeserializeObject<object>(jsonReturnedFeatureId);
}
else
{
_logger.Info("AddBuiltInAsync: Failed");
}
}
catch (Exception ex)
{
_logger.Error("AddBuiltInAsync: Exception - " + ex);
}
return returnedFeatureId;
}
Server Code:
[HttpPost]
public IHttpActionResult AddBuiltIn(string featureType, string jsonSpecAttr)
{
HttpResponseMessage response = null;
object returnedFeatureId = null;
string jsonReturnedFeatureId = string.Empty;
try
{
Dictionary<string, string> specAttr = JsonConvert.DeserializeObject<Dictionary<string, string>>(jsonSpecAttr);
integrationImpl = (IIntegrationImpl)cacheObject.Get("integrationImpl");
integrationImpl.AddBuiltIn(featureType, specAttr, out returnedFeatureId);
//jsonReturnedFeatureId = JsonConvert.SerializeObject(returnedFeatureId);
}
catch (System.Exception ex)
{
Console.WriteLine("AddBuiltIn Exception - ", ex.StackTrace);
}
return Ok(returnedFeatureId);
}
As an alternative I have also tried returning a json string. However, controller fails to serialize the object(of a complex type Teigha.Runtime.RxClass) and returns nothing to the client. I am using json 6.0.0.0 for serialization and deserialization.
Any help would be nice. Note: Not sure though, but I think previously I was able to return "Object" directly without using HttpResponseMessage or Json.
