Switched requires to imports.

routes/index.js

@@ -1,5 +1,6 @@
-var express = require('express');
-var router = express.Router();
+import express from "express";
+
+const router = express.Router();
 
 /* GET home page. */
 router.get('/', function(req, res, next) {
@@ -7,4 +8,4 @@ router.get('/', function(req, res, next) {
 	res.status(400);
 });
 
-module.exports = router;
+export default router;

routes/ping.js

@@ -1,7 +1,9 @@
-let _ = require("underscore");
-let express = require('express');
+import _ from "underscore";
+import express from "express";
+import {MongoClient} from "mongodb";
+
 let router = express.Router();
-const {MongoClient} = require("mongodb");
+
 let localAddresses = process.env.LOCAL_ADDRESSES;  //eg: "10.18.,10.17."
 // Create an array of local address beginnings.  This is matched against the client addresses to determine if they are local.  If not provided then all addresses are considered local.
 if(localAddresses) localAddresses = localAddresses.split(',');
@@ -116,4 +118,4 @@ router.get('/', function(req, res, next) {
 	res.end('Pong');
 });
 
-module.exports = router;
+export default router;