index.js

import botCommander from './botCommander';
const commandsConfig = [{
  name: 'start',
  regex: /\/start$/,
  disabled: false,
  description: 'let the bot help you around',
},{
  name: 'callback',
  disabled: false,
}];

commandsConfig
  .filter(command=>!command.disabled)
  .forEach(command=>{
    botCommander.addCommand(command, require(`./commands/${command.name}`)[command.fn||'default'])
  });