index.js

// Copyright (c) Microsoft Corporation. All rights reserved.
// Licensed under the MIT License.

// index.js is used to setup and configure your bot

// Import required packages
const path = require('path');

// Note: Ensure you have a .env file and include LuisAppId, LuisAPIKey and LuisAPIHostName.
const ENV_FILE = path.join(__dirname, '.env');
require('dotenv').config({ path: ENV_FILE });

const restify = require('restify');

// Import required bot services.
// See https://aka.ms/bot-services to learn more about the different parts of a bot.
const { BotFrameworkAdapter, InputHints} = require('botbuilder');
const { QnABot } = require('./bots/QnABot');

// Create adapter.
// See https://aka.ms/about-bot-adapter to learn more about adapters.
const adapter = new BotFrameworkAdapter({
    appId: process.env.MicrosoftAppId,
    appPassword: process.env.MicrosoftAppPassword
});

// Map knowledge base endpoint values from .env file into the required format for `QnAMaker`.
const configuration = {
    knowledgeBaseId: process.env.QnAKnowledgebaseId,
    endpointKey: process.env.QnAAuthKey,
    host: process.env.QnAEndpointHostName
 };

// Catch-all for errors.
const onTurnErrorHandler = async (context, error) => {
    // This check writes out errors to console log .vs. app insights.
    // NOTE: In production environment, you should consider logging this to Azure
    //       application insights.
    console.error(`\n [onTurnError] unhandled error: ${ error }`);

    // Send a trace activity, which will be displayed in Bot Framework Emulator
    await context.sendTraceActivity(
        'OnTurnError Trace',
        `${ error }`,
        'https://www.botframework.com/schemas/error',
        'TurnError'
    );

    // Send a message to the user
    let onTurnErrorMessage = '예상치 못한 에러가 발생했습니다.';
    await context.sendActivity(onTurnErrorMessage, onTurnErrorMessage, InputHints.ExpectingInput);
    onTurnErrorMessage = '봇을 계속 실행시키기 위하여, 소스코드의 수정이 필요합니다.';
    await context.sendActivity(onTurnErrorMessage, onTurnErrorMessage, InputHints.ExpectingInput);
    // Clear out state
    await conversationState.delete(context);
};

// Set the onTurnError for the singleton BotFrameworkAdapter.
adapter.onTurnError = onTurnErrorHandler;

const bot = new QnABot(configuration, {});

// Create HTTP server
const server = restify.createServer();
server.listen(process.env.port || process.env.PORT || 3978, function() {
    console.log(`\n${ server.name } listening to ${ server.url }`);
    console.log('\nGet Bot Framework Emulator: https://aka.ms/botframework-emulator');
    console.log('\nAuthor - Limm-jk / Powered by Node.js');
    console.log('\nTo talk to your bot, open the emulator select "Open Bot"');
});

// Listen for incoming activities and route them to your bot main dialog.
server.post('/api/messages', (req, res) => {
    // Route received a request to adapter for processing
    adapter.processActivity(req, res, async (turnContext) => {
        // route to bot activity handler.
        await bot.run(turnContext);
    });
});

// Listen for Upgrade requests for Streaming.
server.on('upgrade', (req, socket, head) => {
    // Create an adapter scoped to this WebSocket connection to allow storing session data.
    const streamingAdapter = new BotFrameworkAdapter({
        appId: process.env.MicrosoftAppId,
        appPassword: process.env.MicrosoftAppPassword
    });
    // Set onTurnError for the BotFrameworkAdapter created for each connection.
    streamingAdapter.onTurnError = onTurnErrorHandler;

    streamingAdapter.useWebSocket(req, socket, head, async (context) => {
        // After connecting via WebSocket, run this logic for every request sent over
        // the WebSocket connection.
        await bot.run(context);
    });
});