In Dialog flow, i want to take action after user has asked 3 questions. I don't know how to keep the counter of the responses. There is no integration here.
The most straightforward way is to setup a fulfillment webhook and configure each of your Intents to call this webhook. As part of the webhook, you would have it track and update a counter as part of a context parameter.
Libraries such as multivocal keep track of counters for each Intent and each Action you may set using this method, for example.
Related
We are implementing our customized chatbot using dialog flow. When user enters any text, our javascript code sends this text to our python server and the server interacts with google dialog flow and server gets complete response. I just have couple of questions as below.
When server gets the response from dialog flow, it will process the
response and sends some response to UI. Do we still need to have
fulfillment enabled as our server is getting response? Basically if
server is interacting with dialog flow and getting response, what is
the use of webhook?
Is there anyway to enforce the dialog flow intents require at least
one of entities? I went through Can I make Dialogflow intents require atleast one of the trained entities? which says to enable webhook fulfillment for that intent and if no entities were provided, re prompt the user for at least one of a list of entities. So in my case, if webhook is not needed, do I need to do it in the server once server receives response or is there anyway dialog flow will automatically enforce the condition with out server taking the responsibility?
In your case, no, you don't need to use webhook fulfillment.
You may still wish to use it, however, if you want to separate business logic (which would be in the webhook) from UI/UX logic (which would be in your python server and in the javascript client). But there is no requirement that you separate things this way.
Similarly, you can use your python code to enforce "at least one of" the parameters matching - you're moving that logic from the webhook into your existing server.
Either way, this is a bit kludgy. One alternative if you have different entity types is to have multiple Intents, one for each possible type, and to mark the parameter as required. This way the Intent will only match if the parameter is provided. If you then need to report each of these Intents as the "same" Intent, you can add that logic to your python code.
So I have a flow prepared.
User: I would like to book an appointment
Bot: Sure. Does 3pm works for you?
User: Yes
Bot: Great. Appointment has been set. (Response from Fulfillment)
Bot: Anything else you need help with? Yes | No (How to achieve this)
I have tried triggering followupEvent but that won't display any response till the chain of intent is complete.
When the followupEventInput parameter is set for a WebhookResponse,
Dialogflow ignores the fulfillmentText, fulfillmentMessages, and
payload fields. When Dialogflow receives a webhook response that
includes an event, it immediately triggers the corresponding intent in
which it was defined.
I have End Intents ready for response for Yes and No. But need help in triggering it.
An intent shouldn't be used as a step in your flow or be tied to a single response, its intended to represent a category of phrases your user might say to complete a certain goal in your conversation. Since the was this helpful isn't triggered by any user phrase, but more as a trigger for the user to continue the conversation shows that it shouldn't be a separate intent.
Having the was this helpful phrase be available to multiple intents is a good choice so it can be used throughout your conversation, but I would recommend saving this phrase in a file, an API or a CMS and retrieving the response via code.
I'm not a PHP developer, but I expect it to be along the lines of: responseService.getResponse("requestFeedbackPrompt");
This allows you to retrieve the was this helpful phrase throughout your code, without making the mistake of making a seperate intent for it, as this will create problems later on with keeping state.
If you would decide to go with a single intent for this, you will quickly see that it will become difficult to maintain track of context, states and which step of the conversation you are in as multiple intents will go through this generic intent.
What would you do if you need a different variant of the was this helpful response, with the single intent, you will end up creating an intent for each variation and you will have to align the conversation flow and state accordingly every time.
If you use the service, you just call responseService.getResponse("OtherFeedbackPrompt);`
Hi have something similar in one of my bots. I have taken a different approach to those mentioned.
My bot asks if there's anything it can help with at the end of a an acknowledgement fulfilment.
The customer then has the option to respond with Yes or No.
Within the page that asks the question I have created routes.
One route for Yes and another for No.
The Yes route directs customers back to the point where they can start making selections. The No route provides a fulfilment to the customer and ends the session. I have used Yes and No intents for these.
I have created 5 intents in a Dialog flow. After completion of first intent, it should automatically go to the second intent without the use of the training phase. Is there any possibility to do that?
This probably isn't what you want to do. Remember that Intents capture what the user says or does and not how Dialogflow should respond.
If you want to do a series of things when the user says one thing, then you can do all those things in your fulfillment webhook. Your webhook is where you actually do something based on what the user has said, and this can be handled in one function call or several calls that you make from your Intent Handler.
There are two possibilities either you can use contexts or if you want to handle sequence from webhook service you can use events.
For webhook solution,
Give each Intent a specific event and action.
In your webhook request you will get action of your intent and you can trigger next event based on current action. => Dialogflow
For context solution
You can add Follow up intents for your each intents, Follow-up-intents
I was just wondering about the best way to handle when a users intent cannot be understood multiple times.
e.g. In the case of a chat bot a user may enter an intent that cannot be understood multiple times, after the third time I would like the chat bot to call a webservice.
What is the best way to handle this scenario? Possible scenarios I have come up with are:
1) Each time the default fallback intent is called we call a web service that keeps track of the number of times the default fallback intent has been called for the current user and on the third time call another service.
2) Chain multiple default fallback intents together in DialogFlow and on the call to the third fallback intent we make the call (Is this even possible or a good idea?)
3) Keep track of the number of times the default call back is called within DialogFlow (By using an Entity I believe) and then on the third attempt we call the Web Service.
Any recommendations or ideas happily received as I am new to DialogFlow
If you mean "Followup Intent" in (2), this would be a bad idea. Just about anything involving chains of Followup Intents are a bad idea.
I'm not sure how you would pull off (3), to be honest. Dialogflow itself has very little ability to include logic of this sort.
The best approach is (1) - for everything, call your fulfillment webhook and have it handle the logic. Typically, you want to count consecutive times the user hits the Fallback Intent, rather than the total times you do so. You can keep this counter in a short-lived Context.
(Libraries such as multivocal keep track of the counter for you, as an aside, and let you use it in responses or in other logic handling.) (Disclaimer, I'm the lead developer for multivocal.)
I’m coding a bot using PHP-BotMan for complexity reasons and using Dialogflow query api to extract and manipulate the informations from the response. I saw examples and hints from people here and on dialogflow forum suggesting using context or events, some of them mixing both. What is the better way to handle this?
The flow of the application is:
user messages bot
bot queries (text or/and #event?) dialogflow
internally process a reply or return dialogflow slotfilling* request
text response bot reply user with last reply or asking to fill slot
Also, how can I be sure that a slotfilling process is finished with “actionIncomplete” only having two values, NULL or TRUE? The dialogflow query response doesn’t show wich slotfilling parameters are required or not…
Thanks for the help!!
slotfilling is when dialogflow sends a text response requesting required parameters to finish an intent, adding those replied values to the context
I was trying something similar to your scenario, here are few points i found helpful:
When Slotfitting with webhook, i can't use the "Required" params field since i have to control the input parameters via webhook (query database to provide options). Which means actionIncomplete field is not useful anymore.
I personally prefer to use context as it can add/remove params which gives you more control.
Hence the dialog was designed to use webhook to check all required params before move on to next conversation flow. and pop quick replies menu to ease and restrict possible input from users.
HTH.