index.js

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

const path = require('path');
const restify = require('restify');
const { BotFrameworkAdapter } = require('botbuilder');
const { BotConfiguration } = require('botframework-config');
const { AttachmentsBot } = 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');
const env = require('dotenv').config({ path: ENV_FILE });

// Get the .bot file path.
// See https://aka.ms/about-bot-file to learn more about .bot files.
const BOT_FILE = path.join(__dirname, (process.env.botFilePath || ''));
let botConfig;
try {
    // Read bot configuration from .bot file.
    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();
}

// For local development configuration as defined in .bot file.
const DEV_ENVIRONMENT = 'development';

// Bot name as defined in .bot file or from runtime.
const BOT_CONFIGURATION = (process.env.NODE_ENV || DEV_ENVIRONMENT);

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

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

// Create HTTP server.
let 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(`\nTo talk to your bot, open handling-attachments.bot file in the emulator.`);
});

// Catch-all for errors.
adapter.onTurnError = async (turnContext, error) => {
    // Write out errors to console log.
    // NOTE: In production environment, you should consider logging this to Azure
    //       application insights.
    console.error(`\n [onTurnError]: ${ error }`);
    // Send a message to the user.
    await turnContext.sendActivity(`Oops. Something went wrong!`);
};

// Create the AttachmentsBot.
const bot = new AttachmentsBot();

// Listen for incoming requests.
server.post('/api/messages', async (req, res) => {
    await adapter.processActivity(req, res, async (turnContext) => {
        await bot.onTurn(turnContext);
    });
});