Basic Botkit scaffolding for Slack slash commands with Mongo support

botkit-simple.js

var Botkit = require('botkit');

if(!process.env.SLACK_CLIENT_ID || 
  !process.env.SLACK_CLIENT_SECRET || 
  !process.env.SLACK_VERIFICATION_TOKEN) {
  console.log('Error: Specify SLACK_CLIENT_ID, SLACK_CLIENT_SECRET and SLACK_VERIFICATION_TOKEN in environment');
  process.exit(1);
}

var config = {}
if (process.env.MLAB_URI) {
  var BotkitStorage = require('botkit-storage-mongo');
  config = {
    storage: BotkitStorage({mongoUri: process.env.MONGO_URI}),
  };
} else {
  config = {
    json_file_store: './db_shits_lit/',
  };
}

var controlla = Botkit.slackbot(config).configureSlackApp({
  clientId: process.env.SLACK_CLIENT_ID,
  clientSecret: process.env.SLACK_CLIENT_SECRET,
  scopes: ['commands', 'bot'],
});

controlla.setupWebserver(process.env.PORT || 3000, function(error, webserver) {
  controlla.createWebhookEndpoints(controlla.webserver);
  controlla.createOauthEndpoints(controlla.webserver, function(error, request, response) {
    if(error) {
      response.status(500).send('ERROR: ' + error);
    } else {
      response.send("You've successfully installed this Slack app. Close the window!");
    }
  });
});

controlla.on('slash_command', function(bot, message) {
  switch(message.command) {
    case '/command': // change this to your command
      if(message.token !== process.env.SLACK_VERIFICATION_TOKEN) return;

      if(message.text === '') {
        bot.replyPrivate(message, 'Oh shit, waddup');
        return;
      }
      
      // do something with the message here
      // payload can either be a string or an object that follows
      // https://api.slack.com/docs/message-attachments
      var payload = logic(message.text);
      
      bot.reply(message, payload); 

      break;
  }
});