nexmo-ivr-demo.js

nexmo-ivr-demo.js

'use strict';

const path = require('path');
const express = require('express');
const bodyParser = require('body-parser');
const app = express();

const NCCO_INITIAL_PROMPT = [{ 
  "action": "stream",
  "streamUrl": [`${process.env.BASE_URL}/prompt.mp3`],
  "bargeIn": true
}, {
  "action": "input",
  "timeout": 10,
  "maxDigits": 1,
  "eventUrl": [`${process.env.BASE_URL}/ivr`]
}];

const NCCO_BYE = [{
  "action": "stream",
  "streamUrl": [`${process.env.BASE_URL}/bye.mp3`]
}];

app.use(bodyParser.json());
app.use(bodyParser.urlencoded({extended: false}));
app.use(express.static(path.join(__dirname, 'public')));

app.use((req, res, next) => {
  console.log('Got request, %s %s', req.method, req.url, req.ip, req.headers);
  next();
});

app.route('/init')
  .get((req, res) => {
    res.send(NCCO_INITIAL_PROMPT);
  });

app.route('/ivr')
  .post((req, res) => {
    console.log('got ivr payload: %j', req.body);
    
    const dtmf = req.body.dtmf;
    if (dtmf !== '3') {
      return res.send(NCCO_INITIAL_PROMPT);
    }

    res.send(NCCO_BYE);
  });

app.route('/events')
  .get((req, res) => {
    console.log('got event get request');
    console.log(req.url, req.query);
    res.sendStatus(204);
  })
  .post((req, res) => {
    console.log('got event post request');
    console.log(req.url, req.query, req.body);
    res.sendStatus(204);
  });

app.listen(9000, () => {
  console.log('Server started at port 9000...');
});