/// <summary>
/// Sends a <see cref="DF2QueryInput"/> object as a HTTP request to the remote
/// chatbot.
/// </summary>
/// <param name="queryInput">The input request.</param>
/// <param name="session">The session ID, i.e., the ID of the user who talks to the chatbot.</param>
private IEnumerator DetectIntent(DF2QueryInput queryInput, string session)
{
// Gets the JWT access token.
string accessToken = string.Empty;
while (!JwtCache.TryGetToken(accessSettings.ServiceAccount, out accessToken))
{
yield return(JwtCache.GetToken(accessSettings.CredentialsFileName,
accessSettings.ServiceAccount));
}
// Prepares the HTTP request.
var settings = new JsonSerializerSettings();
settings.NullValueHandling = NullValueHandling.Ignore;
settings.ContractResolver = new CamelCasePropertyNamesContractResolver();
DF2Request request = new DF2Request(session, queryInput);
// Adds the input contexts and the entities.
request.QueryParams = new DF2QueryParams();
request.QueryParams.Contexts = inputContexts.ToArray();
inputContexts.Clear();
request.QueryParams.SessionEntityTypes = inputEntities.ToArray();
inputEntities.Clear();
string jsonInput = JsonConvert.SerializeObject(request, settings);
byte[] body = Encoding.UTF8.GetBytes(jsonInput);
string url = string.Format(PARAMETRIC_DETECT_INTENT_URL, accessSettings.ProjectId, session);
UnityWebRequest df2Request = new UnityWebRequest(url, "POST");
df2Request.SetRequestHeader("Authorization", "Bearer " + accessToken);
df2Request.SetRequestHeader("Content-Type", "application/json");
df2Request.uploadHandler = new UploadHandlerRaw(body);
df2Request.downloadHandler = new DownloadHandlerBuffer();
yield return(df2Request.SendWebRequest());
// Processes response.
if (df2Request.isNetworkError || df2Request.isHttpError)
{
DetectIntentError?.Invoke(JsonConvert.DeserializeObject <DF2ErrorResponse>(df2Request.downloadHandler.text));
}
else
{
string response = Encoding.UTF8.GetString(df2Request.downloadHandler.data);
DF2Response resp = JsonConvert.DeserializeObject <DF2Response>(response);
ChatbotResponded?.Invoke(resp);
for (int i = 0; i < resp.queryResult.outputContexts.Length; i++)
{
DF2Context context = resp.queryResult.outputContexts[i];
string[] cName = context.Name.ToLower().Split('/');
if (reactionContexts.ContainsKey(cName[cName.Length - 1]))
{
reactionContexts[cName[cName.Length - 1]](context);
}
}
}
}
/// <summary>
/// Detects an intent from a user-built <see cref="DF2QueryInput"/>.
/// </summary>
/// <param name="input">The user-built <see cref="DF2QueryInput"/>.</param>
/// <param name="talker">The user who is talking to the chatbot.</param>
/// <param name="languageCode">The language code of the request.</param>
public void DetectIntentFromGenericInput(DF2QueryInput input, string talker,
string languageCode = "")
{
if (languageCode.Length == 0)
{
languageCode = accessSettings.LanguageCode;
}
StartCoroutine(DetectIntent(input, talker));
}
/// <summary>
/// Makes a POST request to Dialogflow for detecting an intent from text.
/// </summary>
/// <param name="text">The input text.</param>
/// <param name="talker">The ID of the entity who is talking to the bot.</param>
/// <param name="languageCode">The language code of the request.</param>
public void DetectIntentFromText(string text, string talker, string languageCode = "")
{
if (languageCode.Length == 0)
{
languageCode = accessSettings.LanguageCode;
}
DF2QueryInput queryInput = new DF2QueryInput();
queryInput.Text = new DF2TextInput();
queryInput.Text.Text = text;
queryInput.Text.LanguageCode = languageCode;
StartCoroutine(DetectIntent(queryInput, talker));
}
//@hoatong
/// <summary>
/// Makes a POST request to Dialogflow for detecting an intent from text.
/// </summary>
/// <param name="talker">The ID of the entity who is talking to the bot.</param>
/// <param name="languageCode">The language code of the request.</param>
public void DetectIntentFromAudio(string audio64, string talker, string languageCode = "")
{
if (languageCode.Length == 0)
{
languageCode = accessSettings.LanguageCode;
}
DF2QueryInput queryInput = new DF2QueryInput();
queryInput.AudioConfig = new DF2AudioConfig();
queryInput.AudioConfig.LanguageCode = languageCode;
StartCoroutine(DetectIntent(queryInput, talker, audio64));
}
/// <summary>
/// Makes a POST request to Dialogflow for detecting an intent from an event.
/// </summary>
/// <param name="eventName">The name of the event.</param>
/// <param name="parameters">The parameters of the event.</param>
/// <param name="talker">The ID of the entity who is talking to the bot.</param>
/// <param name="languageCode">The language code of the request.</param>
public void DetectIntentFromEvent(string eventName, Dictionary <string, object> parameters,
string talker, string languageCode = "")
{
if (languageCode.Length == 0)
{
languageCode = accessSettings.LanguageCode;
}
DF2QueryInput queryInput = new DF2QueryInput();
queryInput.Event = new DF2EventInput();
queryInput.Event.Name = eventName;
queryInput.Event.Parameters = parameters;
queryInput.Event.LanguageCode = languageCode;
StartCoroutine(DetectIntent(queryInput, talker));
}
public DF2Request(string session, DF2QueryInput queryInput)
{
Session = session;
QueryInput = queryInput;
}
