chatbot.js

const Botmaster = require('botmaster');
const MessengerBot = Botmaster.botTypes.MessengerBot;

const botmaster = new Botmaster();

const slackBot = new SlackBot({
  credentials: {
    clientId: process.env.SLACK_CLIENT_ID,
    clientSecret: process.env.SLACK_CLIENT_SECRENT,
    verificationToken: process.env.SLACK_VERIFICATION_TOKEN
  },
  webhookEndpoint: '/webhook'
});

botmaster.addBot(slackBot);

botmaster.on('update', (bot, update) => {
  bot.reply(update, 'Right back at you');
});