Let's begin by installing concordant (a DNS lookup module) into the webapp folder:
$ cd micro/webapp$ npm install --save concordant
Let's include the newly installed concordant module into webapp/routes/audit.js. The top of webapp/routes/audit.js should look like so:
const { Router } = require('express')const restify = require('restify')const { dns } = require('concordant')()const router = Router()var client
Notice how we also declared an (as yet) undefined client variable.
We're going to use an Express routing middleware pattern to split up the resolving of a DNS service, and the server response. Let's modify the GET route in webapp/routes/audit.js to:
router.get('/', resolve, respond)
Our resolve function in webapp/routes/audit.js ...
