index.js

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

const restify = require('restify');
const path = require('path');

// Read environment variables from .env file
const ENV_FILE = path.join(__dirname, '.env');
require('dotenv').config({ path: ENV_FILE });

// Import required bot services.
// See https://aka.ms/bot-services to learn more about the different parts of a bot.
const {
    CloudAdapter,
    ConfigurationServiceClientCredentialFactory,
    ConversationState,
    createBotFrameworkAuthenticationFromConfiguration,
    MemoryStorage,
    UserState
} = require('botbuilder');

// Import our custom bot class that provides a turn handling function.
const { DialogBot } = require('./bots/dialogBot');
const { UserProfileDialog } = require('./dialogs/userProfileDialog');

const credentialsFactory = new ConfigurationServiceClientCredentialFactory({
    MicrosoftAppId: process.env.MicrosoftAppId,
    MicrosoftAppPassword: process.env.MicrosoftAppPassword,
    MicrosoftAppType: process.env.MicrosoftAppType,
    MicrosoftAppTenantId: process.env.MicrosoftAppTenantId
});

const botFrameworkAuthentication = createBotFrameworkAuthenticationFromConfiguration(null, credentialsFactory);

// Create the adapter. See https://aka.ms/about-bot-adapter to learn more about using information from
// the .bot file when configuring your adapter.
const adapter = new CloudAdapter(botFrameworkAuthentication);

// Catch-all for errors.
adapter.onTurnError = 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. See https://aka.ms/bottelemetry for telemetry
    //       configuration instructions.
    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
    await context.sendActivity('The bot encountered an error or bug.');
    await context.sendActivity('To continue to run this bot, please fix the bot source code.');
    // Clear out state
    await conversationState.delete(context);
};

// Define the state store for your bot.
// See https://aka.ms/about-bot-state to learn more about using MemoryStorage.
// A bot requires a state storage system to persist the dialog and user state between messages.
const memoryStorage = new MemoryStorage();

// Create conversation state with in-memory storage provider.
const conversationState = new ConversationState(memoryStorage);
const userState = new UserState(memoryStorage);

// Create the main dialog.
const dialog = new UserProfileDialog(userState);
const bot = new DialogBot(conversationState, userState, dialog);

// Create HTTP server.
const server = restify.createServer();
server.use(restify.plugins.bodyParser());

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('\nTo talk to your bot, open the emulator select "Open Bot"');
});

// Listen for incoming requests.
server.post('/api/messages', async (req, res) => {
    // Route received a request to adapter for processing
    await adapter.process(req, res, (context) => bot.run(context));
});