Actions on Google: Unable to Close Convo in DialogFlow Fulfillment - dialogflow-es

Question

I am on ActionOnGoogle V2 SDK, and using Firebase Functions
I tried this code...
import * as functions from 'firebase-functions';
const admin = require('firebase-admin');
const serviceAccount = require("../key/secretkey.json");
import {dialogflow, BasicCard, SimpleResponse, List, Carousel} from 'actions-on-google';
admin.initializeApp({
credential: admin.credential.cert(serviceAccount),
databaseURL: "https://dburl.com"
});
const getSomethingPromize = admin.database().ref(`/user_list/`).orderByChild('blood_group');
const app = dialogflow();
app.intent('getLocation', async (conv:any, parameters) => {
console.log("params", parameters);
return getSomethingPromize.equalTo(parameters.blood_group)
.once('value')
.then((snapshot) => {
const childCount = snapshot.numChildren();
let message = "";
let singleRecord;
switch (childCount) {
case 0:
message = `No Record`;
break;
case 1:
singleRecord = snapshot.val();
singleRecord = singleRecord[Object.keys(singleRecord)[0]];
message = `1 Record`;
getBasicCard(conv, singleRecord);
break;
default:
let myItems = {};
snapshot.forEach(childSnapshot => {
const entity = childSnapshot.val();
const state:any = parameters.indian_states;
if (entity.state.toLowerCase() !== state.toLowerCase()){
return;
}
myItems[entity.name] = {
synonyms: [
entity.name,
],
title: ` ${entity.name} `,
description: ` Contact : ${entity.phone} ${entity.phone2}, ${entity.city}, ${entity.state}, ${entity.pincode} `,
};
});
message = `Multiple Records`;
//ISSUE HERE
conv.close(new List({
title: `List Title`,
items: myItems,
}));
}
return getSimpleResponse(conv, parameters, message);
});
});
function getSimpleResponse(conv, parameters, message=null){
let displayMessage = message;
if (!message) {
displayMessage = `Sorry! No Record Found`;
}
return conv.close(new SimpleResponse({
text: displayMessage,
speech: displayMessage
}));
}
function getBasicCard(conv, singleRecord){
return conv.close(new BasicCard({
text: `${singleRecord.blood_group}, ${singleRecord.state}`,
subtitle: `Contact : ${singleRecord.phone} ${singleRecord.phone2}, ${singleRecord.city}, ${singleRecord.state}, ${singleRecord.pincode}, ${singleRecord.comment} `,
title: `${singleRecord.name}`,
display: 'CROPPED',
}));
}
export const fulfillment = functions.https.onRequest(app);
Issue is : When i Tried to Close Convo by Sending Rich List Card, the Convo remains Open.
Hence, on Stackdriver i am Issued with
"MalformedResponse: 'final_response' must be set"
I am Referencing this Docs
https://developers.google.com/actions/assistant/responses#list

Answer 1

You can only close the conversation with a SimpleResponse. According to the docs, "Your final response must be a single simple response with a 60-character limit on its textToSpeech and displayText values".