public Answer Answer(Question question)
{
QnAMakerRequest request = new QnAMakerRequest()
{
Question = question.Text,
ApiUrl = this.envInfo.ApiUrl,
Method = HttpPostMethod,
ContentType = ApplicationJsonContentType,
Encoding = this.envInfo.Encoding,
OcpApimSubscriptionKey = this.envInfo.OcpApimSubscriptionKey
};
QnAMakerResponse response = this.DoGetAnswer(request);
return(new Answer()
{
Text = response.Answer,
Relevance = response.Score
});
}
private QnAMakerResponse DoGetAnswer(QnAMakerRequest request)
{
HttpWebRequest webRequest = (HttpWebRequest)WebRequest.Create();
webRequest.Method = HttpPostMethod;
webRequest.ContentType = ApplicationJsonContentType;
webRequest.Headers.Add(OcpApimSubscriptionKeyHeaderName, this.envInfo.OcpApimSubscriptionKey);
string data = JsonConvert.SerializeObject(question);
byte[] dataBytes = Encoding.GetEncoding(this.envInfo.Encoding).GetBytes(data);
webRequest.ContentLength = dataBytes.Length;
using (Stream stream = webRequest.GetRequestStream())
{
stream.Write(dataBytes, 0, dataBytes.Length);
}
try
{
using (HttpWebResponse webResponse = webRequest.GetResponse() as HttpWebResponse)
{
using (StreamReader reader = new StreamReader(webResponse.GetResponseStream()))
{
return(JsonConvert.DeserializeObject <QnAMakerResponse>(reader.ReadToEnd()));
}
}
}
catch (Exception ex)
{
throw new QnAMakerApiException(
question.Question,
this.envInfo.ApiUrl,
this.envInfo.OcpApimSubscriptionKey,
this.envInfo.Encoding,
HttpPostMethod,
"Failed to get answer from QnAMaker api.",
ex);
}
}
