ping-bot-app.js

const pinger = require('./ping-bot');
const Botkit = require('botkit');

//require beepboop's library
const BeepBoop = require('beepboop-botkit');

//as usual, initialize a slackbot controller
const controller = Botkit.slackbot();

/**
 * But instead of spawning a process, you pass the controller to BeepBoop.
 * BeepBoop handles managing processes for different teams that install your app,
 * and it routes all the required controller events to make it easy to handle.
 */
const beepboop = BeepBoop.start(controller, {
	debug: true //you might want to enable debug for testing :)
});

//then as usual handle when a direct message or direct mention event is triggered
controller.on(['direct_message', 'direct_mention'], (bot, message) => {
	pinger(message.text, (response) => {
		bot.reply(message, response);
	});
});