Add simple express server

index.js

@@ -0,0 +1,22 @@
+"use strict";
+require("dotenv").config();
+
+const fs = require('fs');
+const express = require('express');
+const serveIndex = require('serve-index');
+
+const publicDir = './public';
+const port = process.env.PORT || 3000;
+
+const app = express();
+
+if (!fs.existsSync(publicDir)) {
+    fs.mkdirSync(publicDir);
+}
+
+app.use(express.static('public'));
+app.use('/', serveIndex('public'));
+
+app.listen(port, () => {
+    console.log(`Listening on port ${port}`)
+});