app.js

/**
 * Copyright 2016 IBM Corp. All Rights Reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

require('dotenv').load();

var middleware = require('botkit-middleware-watson')({
  username: process.env.CONVERSATION_USERNAME,
  password: process.env.CONVERSATION_PASSWORD,
  workspace_id: process.env.WORKSPACE_ID,
  url: process.env.CONVERSATION_URL || 'https://gateway.watsonplatform.net/conversation/api',
  version_date: '2017-05-26'
});

module.exports = function(app) {
  if (process.env.USE_SLACK) {
    var Slack = require('./bot-slack');
    Slack.controller.middleware.receive.use(middleware.receive);
    Slack.bot.startRTM();
    console.log('Slack bot is live');
  }
  if (process.env.USE_FACEBOOK) {
    var Facebook = require('./bot-facebook');
    Facebook.controller.middleware.receive.use(middleware.receive);
    Facebook.controller.createWebhookEndpoints(app, Facebook.bot);
    console.log('Facebook bot is live');
  }
  if (process.env.USE_TWILIO) {
    var Twilio = require('./bot-twilio');
    Twilio.controller.middleware.receive.use(middleware.receive);
    Twilio.controller.createWebhookEndpoints(app, Twilio.bot);
    console.log('Twilio bot is live');
  }
  // Customize your Watson Middleware object's before and after callbacks.
  middleware.before = function(message, conversationPayload, callback) {
    callback(null, conversationPayload);
  }

  middleware.after = function(message, conversationResponse, callback) {
    callback(null, conversationResponse);
  }
};