/// <summary>
/// Post to IBM watson with Authorization and JSON formatted utterances to process
/// </summary>
static async Task HTTP_POST(WatsonMessage message)
{
if (message.Empty)
{
return;
}
//Create Json Readable String with user input:
string result = String.Empty;
string jsonContent = String.Empty;
try
{
using (HttpClient client = new HttpClient())
{
// credentials
var Auth = WatsonUsername + ":" + WatsonPassword;
var byteArray = Encoding.ASCII.GetBytes(Auth);
client.DefaultRequestHeaders.Authorization = new AuthenticationHeaderValue("Basic", Convert.ToBase64String(byteArray));
// JSON content
client.DefaultRequestHeaders.Accept.Clear();
client.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json"));
// Make Post call and await response
jsonContent = message.ToJSON();
using (var response = await client.PostAsJsonAsync(WatsonGatewayUrl, JObject.Parse(jsonContent)))
{
HttpContent content = response.Content;
result = await content.ReadAsStringAsync() ?? " ";
UtteranceToneList watsonResponse = JsonConvert.DeserializeObject <UtteranceToneList>(result);
// publish results to DB
message.PublishWatsonResponse(watsonResponse);
_actionsAnalyzed += message.ActionCount;
}
}
}
catch (Exception ex)
{
WatsonEventLog.WriteEntry("********************: Error during watson analysis:", ex);
if (!String.IsNullOrEmpty(jsonContent))
{
WatsonEventLog.WriteEntry(jsonContent);
}
if (!String.IsNullOrEmpty(result))
{
WatsonEventLog.WriteEntry(result);
}
Console.WriteLine(ex.ToString());
}
}
/// <summary> Write the message results back to the database </summary>
public void PublishWatsonResponse(UtteranceToneList watsonResponse)
{
foreach (UtteranceResponse response in watsonResponse.utterances_tone)
{
MessageUtterance messageUtterance = _messageUtterances[response.utterance_id];
Utterance sent = messageUtterance._utterance;
if (string.CompareOrdinal(sent.text, response.utterance_text) != 0)
{
Debugger.Break();
}
ActionToAnalyze action = messageUtterance._action;
action.AddSentiment(response);
}
// update the action with the accumulated results
foreach (ActionToAnalyze action in _actions)
{
PublishActionSentiment(action);
}
}
