nodejs Dialogflow v2 close a conversation from the fulfillment - node.js

How do I end my conversation from the webhook ?
Marking it within Dialogflow does nothing , basically does not stop it as I am using the webhook for fulfillment .
And if I add it to the code as below then it does not play the media.
// Import the Dialogflow module from the Actions on Google client library.
// https://github.com/actions-on-google/actions-on-google-nodejs
const {dialogflow, Suggestions, MediaObject, Image} = require('actions-on-google');
// Import the firebase-functions package for Cloud Functions for Firebase fulfillment.
const functions = require('firebase-functions');
// Node util module used for creating dynamic strings
const util = require('util');
// Instantiate the Dialogflow client with debug logging enabled.
const app = dialogflow({
debug: true
});
// Do common tasks for each intent invocation
app.middleware((conv, framework) => {
console.log(`Intent=${conv.intent}`);
console.log(`Type=${conv.input.type}`);
//kng
console.log(`Arguments=${conv.arguments}`);
console.log(`Arguments=${typeof(conv.arguments)}`);
// Determine if the user input is by voice
conv.voice = conv.input.type === 'VOICE';
if (!(conv.intent === 'Default Fallback Intent' || conv.intent === 'No-input')) {
// Reset the fallback counter for error handling
conv.data.fallbackCount = 0;
}
});
app.intent('Play Sound', (conv, {SoundType,duration}) => {
const suggestions1 = new Suggestions('do this ', 'do that', 'do nothing');
simple_response = 'this is a response from the webhook'
conv.ask(simple_response)
conv.ask(new MediaObject({
name: SoundType,
url: some_mp3file_url,
icon: new Image({
url: some_image_url,
alt: 'Media icon'
})
}));
conv.ask( suggestions1);
//if I close from the code it doesnot play the sound
conv.close();
//if I comment out the close statement above then it does not close and toggling on the "set this intent as the end of convesation does not seem to help."
}
)
Update - This was intact a bug as pointed out by one of the comments . Reported to google and they fixed the same in April or May

I can duplicate the issue, but it appears to be a bug - playing audio as part of the response and having it close after the audio finishes used to work. It is clearly supposed to be supported - the documentation and the simulator state that Suggestions aren't required if this is a final response.
The workaround is to create an additional Intent that handles the Action actions_intent_MEDIA_STATUS. This Intent would then close the conversation.

Related

Dialogflow Fulfillment - Mutiple Intents

I need some help in creating the fulfillment for the intents that i have created in Dialog flow. There are 15 intents that i have created and i have integrated them and tested and it works fine. I am stuck in fulfillment and unable to proceed since i am confused whether the fulfillment setup. Since has to be done for every intent that i have created i believe. I am unsure how to do this to complete by one click using fulfillment link on the left pane. does it work if i just directly click on fulfillment and deploy. I am really confused. Please help me out.
Setting up Fulfillment is a multi-step process.
Enabling Fulfillment
Select Fulfillment on the left navigation
If your fulfillment code will be running at a remote webhook, enable "Webhook" and enter the URL for your webhook.
If you don't have a place to run your fulfillment code, you can also use the Inline Editor to get started. Enable this, and you'll be entering your code here directly.
Save the configuration.
Enabling for each Intent
While this sets the Fulfillment that will be used for your project, you must still enable this for each Intent that should call it.
Go back to the Intent listing and select an Intent.
Scroll towards the bottom of the page in the Fulfillment section.
Turn "Enable webhook call for this intent" on.
Save the configuration.
Repeat this for every Intent that you want to process using Fulfillment.
Deploying your webhook
You will also need to write your webhook to handle the various Intents that are triggered. The code for the Inline Editor can be a good place to start.
In the intentMap, you will need to add a map from the Intent name to a function that will do the handling when that Intent triggers the webhook. You can have a different handler function for each Intent, use the same function for some, have those functions call other functions, whatever you need.
A couple of things to note, however:
If your handler needs to do an asynchronous function (access a database, make a network call, etc), then you need to make sure you return a Promise.
If you're using the Inline Editor and you're making network calls outside of Google's network, then you need to upgrade your Firebase subscription to the Blaze plan. (You will still likely be able to work with the free tier of that plan.)
'use strict';
const functions = require('firebase-functions');
const {WebhookClient} = require('dialogflow-fulfillment');
const {Card, Suggestion} = require('dialogflow-fulfillment');
process.env.DEBUG = 'dialogflow:debug'; // enables lib debugging statements
exports.dialogflowFirebaseFulfillment = functions.https.onRequest((request, response) => {
const agent = new WebhookClient({ request, response });
console.log('Dialogflow Request headers: ' + JSON.stringify(request.headers));
console.log('Dialogflow Request body: ' + JSON.stringify(request.body));
function welcome(agent) {
agent.add(`Welcome to my agent!`);
}
function fallback(agent) {
agent.add(`I didn't understand`);
agent.add(`I'm sorry, can you try again?`);
}
function handlerOne(agent) {
agent.add(`This is handler one`);
}
function handlerThree(agent) {
agent.add(`This is handler three`);
}
// Run the proper function handler based on the matched Dialogflow intent name
let intentMap = new Map();
intentMap.set('Default Welcome Intent', welcome);
intentMap.set('Default Fallback Intent', fallback);
intentMap.set('intent.one', handlerOne);
intentMap.set('intent.two', handlerOne);
intentMap.set('intent.three', handlerThree);
agent.handleRequest(intentMap);
});
You can create a map in the API, where all intent will be mapped to a correspondence handler in fulfillment.
Here is sample code,
const express = require("express");
const { WebhookClient } = require("dialogflow-fulfillment");
const { welcome, defaultFallback } = require("./intents/welcomeExit");
const app = express();
app.post("/dialogflow", express.json(), (req, res) => {
const agent = new WebhookClient({ request: req, response: res });
let intentMap = new Map();
intentMap.set("Default Welcome Intent", welcome);
intentMap.set("Default Fallback Intent", defaultFallback);
agent.handleRequest(intentMap);
});
app.listen(process.env.PORT || 8080);
This has been done in NodeJS. You can use other languages supported by Dialogflow.
How it gets configured in Dialogflow check this link.

Google Assistant's fulfillment response comes with escape character "\"

I created a simple webhook to fulfill a Google Action intent using Actions on Google Client Library. This webhook is hosted on an AWS Lambda function with this code:
'use strict';
// Import the Dialogflow module from the Actions on Google client library.
const {dialogflow} = require('actions-on-google');
// Instantiate the Dialogflow client.
const app = dialogflow({debug: true});
// Handle the Dialogflow intent named 'favorite color'.
// The intent collects a parameter named 'color'.
app.intent('favorite color', (conv, {color}) => {
const luckyNumber = color.length;
// Respond with the user's lucky number and end the conversation.
conv.close('Your lucky number is ' + luckyNumber);
});
// Set the DialogflowApp object to handle the HTTPS POST request.
exports.fulfillment = app;
My issue is the that the response comes back to the assistant in this form:
{
"statusCode": 200,
"body": "{\"payload\":{\"google\":{\"expectUserResponse\":false,\"richResponse\":{\"items\":[{\"simpleResponse\":{\"textToSpeech\":\"Your lucky number is 3\"}}]}}},\"fulfillmentText\":\"Your lucky number is 3\"}",
"headers": {
"content-type": "application/json;charset=utf-8"
}
}
As you can see, the body comes with the escape letter inserted which causes the fulfillment to fail.
I tried the following:
JSON.stringify(conv.close('Your lucky number is ' + luckyNumber));
JSON.parse(conv.close('Your lucky number is ' + luckyNumber));
JSON.parse(conv.close('Your lucky number is ' + luckyNumber).body);
Nothing changed as I think I need to reach the payload part.
Turns out there's an checkbox option in AWS API Gateway called: Use Lambda Proxy Integration.
When selected it returns the JSON as is from my code without extra formatting.

Wait some seconds before agent's reply

I'm trying to build a very simple Dialogflow app for Actions on google.
What I had in mind was a very simple timer, but every X seconds the agent will tell the user "X seconds left".
I'm using the Fulfillment section on dialogflow. What I've tried to do was a simple "setTimeout" that include another agent.add but this seems to be ignored by Dialogflow when I deploy it:
function startTimer(agent)
{
agent.add("Timer started! 20 seconds from now.");
setTimeout(function(){
agent.add("10 seconds left!");
}, 10000);
agent.add("Time out.");
}
let intentMap = new Map();
intentMap.set('timer', startTimer);
agent.handleRequest(intentMap);
The response from assistant is a simple "Timer started" and "Time out", without the X seconds remaining. Is there any way to add a reply when an intent is started? Thanks!
EDIT | as suggested, I have tried with SSML, but the tags are displayed on the screen when they get said by the assistant.
const functions = require('firebase-functions');
const {WebhookClient} = require('dialogflow-fulfillment');
const {Card, Suggestion} = require('dialogflow-fulfillment');
exports.dialogflowFirebaseFulfillment = functions.https.onRequest((request, response) => {
const agent = new WebhookClient({ request, response });
function startTimer(agent)
{
agent.add("Something to say");
agent.add(`<speak><seq><media begin="30s"><speak>30 seconds</speak></media><media begin="30s"><speak>1 minute</speak></media></seq></speak>`);
agent.add(new Suggestion(`Quit`));
}
let intentMap = new Map();
intentMap.set('timer-go', startTimer);
agent.handleRequest(intentMap);
});
It's not possible to an Action start a conversation, the fulfillment code (your function) must return within 10 seconds, or the Google Assistant will close the Action with a time-out warning.
And your setTimeout is not working because this code is running in the cloud, and to actually send it back to the Assistant, you must send the response, and you are only adding items to it, but not returning the object.
This page from DialogFlow documentation explains how the back-end fulfillment works on DialogFlow / Google Assistant.
You can use SSML in your response and set when to respond.
e.g.
<speak>
<seq>
<media begin="0s">
<speak>Timer started! 20 seconds from now</speak>
</media>
<media begin="10.0s">
<speak>10 seconds left!</speak>
</media>
</seq>
</speak>
Also, check for more information.

Invoke a Dialogflow event with a specific device source

After trying and trying countless times, I ask for your help to call a Dialogflow event (GoogleHome) with a specific GoogleHome device.
Through nodeJS I managed to successfully call a Dialogflow event and I get the fullfillment response. All perfect, only I have to let my GoogleHome device speak with fullfillment, I do not need a text-only answer.
My goal is to let my GoogleHome device speak first, without the word "Ok, Google" and wait for a response from the user.
I did not find anything on the web, my attempts stop to invoke the Dialogflow event and have a console response.
This is the code i have tried for fullfillment
test: async function () {
console.log("[funcGHTalk|test] CALLED");
const projectId = "[[projectid]]";
const LANGUAGE_CODE = 'it-IT';
let eventName = "[[eventname]]";
const sessionId = uuid.v4();
const sessionClient = new dialogflow.SessionsClient();
const sessionPath = sessionClient.sessionPath(projectId, sessionId);
// The text query request.
const request = {
session: sessionPath,
queryInput: {
event: {
name: eventName,
languageCode: LANGUAGE_CODE
},
},
};
// Send request and log result
const responses = await sessionClient.detectIntent(request);
console.log('Detected intent');
const result = responses[0].queryResult;
console.log(result);
console.log(` Query: ${result.queryText}`);
console.log(` Response: ${result.fulfillmentText}`);
if (result.intent) {
console.log(` Intent: ${result.intent.displayName}`);
} else {
console.log(` No intent matched.`);
}
}
The code you have written is using the Dialogflow Detect Intent API. This is meant to run on consoles and servers to send a message to Dialogflow, which will parse it, determine which Intent it matches, call fulfillment with that information, and return all the results.
You don't need to run this on a Google Home, since the Google Assistant does all this for you.
What I think you're looking for is to develop fulfillment with Actions on Google and the Dialogflow Fulfillment API. This handles things on the other end - after Dialogflow determines what Intent matches what the user has said, and if that Intent has fulfillment enabled, it will send the information to your webhook which is running on a cloud server somewhere. You would then process it, send a reply (either using the actions-on-google library or the dialogflow-fulfillment library is easiest), and it would send it back to the Assistant.
You indicated that you want the Action to "let my GoogleHome device speak first, without the word "Ok, Google" and wait for a response from the user". This is much more complicated, and not really possible to do with the Google Home device right now. Most Actions have the user initiating the conversation with "Ok Google, talk to my test app" or whatever the name of the Action is.
You don't indicate how you expect to trigger the Home to begin talking, but you may wish to look into notifications to see if those fit your model, however notifications don't work with the Home right now, just the Assistant on mobile devices.

Dialogflow IntentHandler not found for intent: myIntent (Dialogflow V2)

Since I upgraded my Dialogflow to use v2 API, I get the following error:
Dialogflow IntentHandler not found for intent: myIntent
For some reasons, my intent is no longer recognized altough the action name is identical - myIntent.
This is how I'm using my NodeJS (express V4) app to return a response:
dialogflowApp.intent('myIntent', (conv, {version}) => {
conv.close('test');
});
What could have gone wrong?
Make sure that myIntent is spelled the same in Dialogflow and in your NodeJS webhook function, otherwise you'll get this error. This is how I write and access my functions in the webhook:
//Function execution
dialogflowApp.intent('myIntent', myIntentFunction);
//Function definition
function myIntentFunction(conv, {version}){
conv.close('test');
}
V2 Actions SDK uses the Intent name instead of the Action Name. The Intent name can be found in your request, or directly from DialogFlow intent interface
DialogFlow V1 to V2 Migration Documentation
In V2 you have to use the intent name instead of the action name. First you define this at the beginning of the index file:
'use strict';
const {dialogflow} = require('actions-on-google');
const functions = require('firebase-functions');
const app = dialogflow({debug: true});
Then you have to add the code for each intent:
app.intent('intentName1', (conv, {parameterName}) => {
conv.close('Answer text');
});
app.intent('intentName2', (conv, {parameterName}) => {
conv.ask('Answer text');
});
Finally, at the end of the index file, it is necessary to set the DialogflowApp object to handle the HTTPS POST request. Like this:
exports.dialogflowFirebaseFulfillment = functions.https.onRequest(app);
In your example:
dialogflowApp.intent('myIntent', (conv, {version}) => {
conv.close('test');
});
You should check that you have defined 'dialogflowApp' at the begining of index file:
const dialogflowApp = dialogflow({debug: true});
Then you have two options:
Replace 'myIntent' with the name of the intent
Change your intent name to be 'myIntent'
IMPORTANT: You have to make sure that the intent name in dialogflow and that in the code are exactly the same, since it is case sentive.
'version' should be the name of a parameter received from that intent.
Also check that you have this at the end of the index file:
exports.dialogflowFirebaseFulfillment = functions.https.onRequest(dialogflowApp);
Hope this can help! :)
Try to put your intent handler outside your express '/' post route:
dialogflowApp.intent('myIntent', (conv, {version}) => {
conv.close('test');
});
express().post('/', function(req, res)) {
})
According to this comment on Github, Actions-on-Google V2 does not match on the action, but instead matches on the intent.name. I have yet to find a smooth way of finding the name property of a Dialogfow intent, but I have been able to find it by looking at the Diagnostic info after testing it in the right column.
Note: What you named the intent at the top of the screen is the Display Name, not the name.
Update: Part of the intent.name can be found in the URL after opening the intent. The intent.name currently is given in the following format:
projects/<username>/agent/intents/<intent-uuid>
The intent-uuid can be found in the last part of the path:
https://console.dialogflow.com/api-client/#/agent/<agent-uuid>/editIntent/<intent-uuid>/
While this is also not ideal either, it can make things a little easier.
Try also to remove space from the intent name defined in DialogFlow and in your javascript function call. This solve the problem in my case (running in a Azure function)
before :
app.intent('Open Car Gate', conv => {
conv.close('OK, je vais ouvrir le portail en grand !');
});
after :
app.intent('OpenCarGate', conv => {
conv.close('OK, je vais ouvrir le portail en grand !');
});

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