queryApi.js

const request = require('request'),
  prompt = require('prompt'),
  async = require('async');

async.waterfall([
  getInput,
  queryApi
], function(err, result) {
  console.log(result);
});

function getInput(callback) {

  prompt.start();

  prompt.get(['dnis'],  function (err,  result)  {

    if (result.dnis === '') {
      console.log('You must enter a dnis to query API')
      process.exit()
    } else {
      let dnis = result.dnis;
      callback(null, dnis);
    }
  });

}

function queryApi(dnis, callback) {

  

  request({
      url: 'https://api.smilegeneration.com/callcenterinfo/?id=' + dnis,
      "rejectUnauthorized": false
    },
    function(error, response, body) {

      if (response.statusCode === 200) {
        let parsedBody = JSON.parse(body)
        callback(null, parsedBody);
      } else {
        callback(null, body)
      }
    });

}