index.js

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

const dotenv = require('dotenv');
const path = require('path');
const restify = require('restify');
const { QnAMaker } = require('botbuilder-ai');

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

// Import required bot configuration.
const { BotConfiguration } = require('botframework-config');

// This bot's main dialog.
const { MyBot } = require('./bot');

// Read botFilePath and botFileSecret from .env file
// Note: Ensure you have a .env file and include botFilePath and botFileSecret.
const ENV_FILE = path.join(__dirname, '.env');
dotenv.config({ path: ENV_FILE });

// bot endpoint name as defined in .bot file
// See https://aka.ms/about-bot-file to learn more about .bot file its use and bot configuration.
const DEV_ENVIRONMENT = 'development';

// bot name as defined in .bot file
// See https://aka.ms/about-bot-file to learn more about .bot file its use and bot configuration.
const BOT_CONFIGURATION = (process.env.NODE_ENV || DEV_ENVIRONMENT);

// Create HTTP server
const server = restify.createServer();
server.listen(process.env.port || process.env.PORT || 3978, () => {
    console.log(`\n${ server.name } listening to ${ server.url }`);
    console.log(`\nGet Bot Framework Emulator: https://aka.ms/botframework-emulator`);
    console.log(`\nTo talk to your bot, open qna-bot-v-4.bot file in the Emulator`);
});

// .bot file path
const BOT_FILE = path.join(__dirname, (process.env.botFilePath || ''));

// Read bot configuration from .bot file.
let botConfig;
try {
    botConfig = BotConfiguration.loadSync(BOT_FILE, process.env.botFileSecret);
} catch (err) {
    console.error(`\nError reading bot file. Please ensure you have valid botFilePath and botFileSecret set for your environment.`);
    console.error(`\n - The botFileSecret is available under appsettings for your Azure Bot Service bot.`);
    console.error(`\n - If you are running this bot locally, consider adding a .env file with botFilePath and botFileSecret.`);
    console.error(`\n - See https://aka.ms/about-bot-file to learn more about .bot file its use and bot configuration.\n\n`);
    process.exit();
}

// Get bot endpoint configuration by service name
const endpointConfig = botConfig.findServiceByNameOrId(BOT_CONFIGURATION);

const qnaServices = [];
botConfig.services.map(service => {
  if(service.type == "qna") {
      const endpoint = {
          knowledgeBaseId: service.kbId,
          endpointKey: service.endpointKey,
          host: service.hostname
      }
      const options = {};
      qnaServices.push(new QnAMaker(endpoint, options));
  }
});

// Create adapter.
// See https://aka.ms/about-bot-adapter to learn more about .bot file its use and bot configuration.
const adapter = new BotFrameworkAdapter({
    appId: endpointConfig.appId || process.env.microsoftAppID,
    appPassword: endpointConfig.appPassword || process.env.microsoftAppPassword
});

// Catch-all for errors.
adapter.onTurnError = async (context, error) => {
    // This check writes out errors to console log .vs. app insights.
    console.error(`\n [onTurnError]: ${ error }`);
    // Send a message to the user
    await context.sendActivity(`Oops. Something went wrong!`);
};

// Create the main dialog.
const myBot = new MyBot(qnaServices);

// Listen for incoming requests.
server.post('/api/messages', (req, res) => {
    adapter.processActivity(req, res, async (context) => {
        // Route to main dialog.
        await myBot.onTurn(context);
    });
});