List_card in AoG passing item title to the next query instead of key - dialogflow-es

Question

In an app, I'm returning messages of type list_card with option key for an intent.
Here is the json of a sample query:
{
"id": "275212ef-cf97-4576-afa7-facfbc044ada",
"timestamp": "2017-07-17T17:36:03.655Z",
"lang": "en",
"result": {
"source": "agent",
"resolvedQuery": "who is Sneha",
"action": "cp.name_search",
"actionIncomplete": false,
"parameters": {
"keyword": "Sneha"
},
"contexts": [
{
"name": "cpname_search-followup",
"parameters": {
"keyword.original": "Sneha",
"keyword": "Sneha"
},
"lifespan": 2
},
{
"name": "cpuid_search-followup",
"parameters": {
"keyword.original": "Sneha",
"keyword": "Sneha"
},
"lifespan": 1
}
],
"metadata": {
"intentId": "86bd1a17-8e9a-4956-b270-5fb4ac952f5f",
"webhookUsed": "true",
"webhookForSlotFillingUsed": "false",
"webhookResponseTime": 135,
"intentName": "cp.name_search"
},
"fulfillment": {
"speech": "Searching...",
"source": "agent",
"messages": [
{
"type": "simple_response",
"platform": "google",
"textToSpeech": "Here are the search results. \nWant anything else?"
},
{
"type": "list_card",
"platform": "google",
"title": "Search results",
"items": [
{
"optionInfo": {
"key": "uid 72",
"synonyms": []
},
"title": "Sneha Vasista",
"description": "Srinivas Institute of Technology",
"image": {
"url": "//www.curlpad.com/assets/img/custom_images/user.png"
}
},
{
"optionInfo": {
"key": "uid 2053",
"synonyms": []
},
"title": "Sneha Bhat",
"description": "Canara Engineering College",
"image": {
"url": "//www.curlpad.com/assets/img/custom_images/user.png"
}
},
{
"optionInfo": {
"key": "uid 2114",
"synonyms": []
},
"title": "Sneha Sajan",
"description": "P.A College of Engineering",
"image": {
"url": "//www.curlpad.com/assets/img/custom_images/user.png"
}
},
{
"optionInfo": {
"key": "uid 2320",
"synonyms": []
},
"title": "Sneha ",
"description": "sdit",
"image": {
"url": "//www.curlpad.com/assets/img/custom_images/user.png"
}
},
{
"optionInfo": {
"key": "uid 2363",
"synonyms": []
},
"title": "Sneha ",
"description": "Srinivas School of Engineering, Mukka",
"image": {
"url": "//www.curlpad.com/assets/img/custom_images/user.png"
}
}
]
},
{
"type": "0",
"speech": "Here are the search results."
}
]
},
"score": 1
},
"status": {
"code": 200,
"errorType": "success"
},
"sessionId": "e6aa9e52-a9e1-481a-adb5-476c5b386e02"
}
Now the problem is, when I tap the list item in AoG simulator, it passes title of item to next query.
But while testing in Api.ai simulator, it behaves well and passes that key to the next query.
What can be the problem here?
Any hints?

Answer 1

If you're using API.AI, then it will appear in the Intent as an actions_intent_OPTION Event.
One good solution is to have the Intent that sends the list with an OutputContext. Then create a particular Fallback Intent with actions_intent_OPTION as Event and your desired action for that Context which should handle both the voice and press responses.
And you will find your option_key at ["originalRequest"]["data"]["inputs"][0]["arguments"][0]["textValue"] instead of parameter.
You can also see the response value in the actions_intent_option context.

Answer 2

What you need to do is set up a fallback intent directly under your current intent.
For example, if you display the list from the default welcome intent, you can do the following.
Click "Add follow-up intent" and choose fallback.
Don't forget to set the action and enable webhook in the fallback intent.
Now, you should be able to retrieve your answer from the fallback intent using the following code.
const param = app.getContextArgument('actions_intent_option','OPTION').value;