DF Handle Nontext Event

index.js

const functions = require("firebase-functions");
const line = require('@line/bot-sdk');
const express = require('express');
const { postToDialogflow, createLineTextEvent, convertToDialogflow } = require('./dialogflow')
const firebase = require('firebase-admin');
const { WebhookClient } = require('dialogflow-fulfillment');

firebase.initializeApp({});

const config = {
    channelAccessToken: functions.config().line.channel_access_token,
    channelSecret: functions.config().line.channel_secret
}

async function handleEvent(req, event) {
    switch (event.type) {
        case 'message':
            switch (event.message.type) {
                case 'text':
                    return handleText(req, event);
                case 'location':
                    return handleLocation(req, event);
            }
        case 'postback':
            return handlePostback(req, event);
        default:
            throw new Error(`Unknown event: ${JSON.stringify(event)}`);
    }
}

async function handleText(req) {
    return await postToDialogflow(req);
}

function handleLocation(req, event) {
    const message = event.message;
    const newEvent = createLineTextEvent(req, event, `LAT : ${message.latitude}, LNG : ${message.longitude}`);
    convertToDialogflow(req, newEvent);
}

function handlePostback(req, event) {
    const data = event.postback.data;
    const newEvent = createLineTextEvent(req, event, `DATE: ${data}`);
    convertToDialogflow(req, newEvent);
}

async function handleFulfillment(agent) {
    const userId = agent.originalRequest.payload.data.source.userId;
    const { name, latitude, longitude, selected_date } = agent.parameters;
    const doc = {
        uid: userId,
        name,
        latitude,
        longitude,
        selected_date: Date.parse(selected_date)
    };
    await firebase.firestore().collection('member').doc(userId).set(doc);
    agent.add('บันทึกข้อมูลสำเร็จแล้ว');
}

const app = express();
app.post('/webhook', line.middleware(config), (req, res) => {
    Promise.all(req.body.events.map(event => {
        return handleEvent(req, event);
    }))
});
app.use(express.json({ limit: '50mb' }));
app.post('/fulfillment', (request, response) => {
    const agent = new WebhookClient({ request, response });
    let intentMap = new Map();
    intentMap.set('Register - date', handleFulfillment);
    agent.handleRequest(intentMap);
});

exports.api = functions
    .region('asia-northeast1')
    .https
    .onRequest(app);