Get variable from Adaptive card `Action.Submit` in Botframework - node.js

Question

How can I get the value when user clicks the button? I have this example card.
{
"$schema": "http://adaptivecards.io/schemas/adaptive-card.json",
"type": "AdaptiveCard",
"version": "1.0",
"speak": "<s>Your meeting about \"Adaptive Card design session\"<break strength='weak'/> is starting at 12:30pm</s><s>Do you want to snooze <break strength='weak'/> or do you want to send a late notification to the attendees?</s>",
"body": [
{
"type": "TextBlock",
"text": "Adaptive Card design session",
"size": "large",
"weight": "bolder"
},
{
"type": "TextBlock",
"text": "Conf Room 112/3377 (10)",
"isSubtle":true
},
{
"type": "TextBlock",
"text": "12:30 PM - 1:30 PM",
"isSubtle":true,
"spacing":"none"
},
{
"type": "TextBlock",
"text": "Snooze for"
},
{
"type": "Input.ChoiceSet",
"id": "snooze",
"style":"compact",
"value": "5",
"choices": [
{
"title": "5 minutes",
"value": "5",
"isSelected": true
},
{
"title": "15 minutes",
"value": "15"
},
{
"title": "30 minutes",
"value": "30"
}
]
}
],
"actions": [
{
"type": "Action.Submit",
"title": "Snooze",
"data": { "x": "snooze" }
},
{
"type": "Action.Submit",
"title": "I'll be late",
"data": { "x": "late" }
}
]
}
The example is here: http://adaptivecards.io/samples/CalendarReminder.html
How to access it in the session.message object?

Answer 1

I figured it out. In this case it is the x, so to reply it back it would be:
if (session.message && session.message.value) {
// A Card's Submit Action obj was received
session.send(session.message.value.x)
}