Disable directory browsing in Nodejs, Azure - node.js

Question

I'm trying to disable directory browsing in node, hosted on Azure.
This is my root folder and I want to disable browsing.
The following is my index.js file
const express = require('express');
const publicweb = './';
const app = express();
app.use(express.static(publicweb));
app.disable('x-powered-by');
console.log(`serving ${publicweb}`);
app.get('*', (req, res) => {
res.sendFile(`index.html`, { root: publicweb });
});
const port = process.env.PORT || '3500';
app.listen(port, () => console.log(`API running on localhost:${port}`));
I do not want the files to be accessible from the front-end application.

Answer 1

You can try by creating a web.config, under the hood Azure uses IIS to serve your app
<?xml version="1.0" encoding="utf-8"?>
<configuration>
<system.webServer>
<webSocket enabled="false" />
<handlers>
<add name="iisnode" path="app.js" verb="*" modules="iisnode"/>
</handlers>
<rewrite>
<rules>
<rule name="NodeInspector" patternSyntax="ECMAScript" stopProcessing="true">
<match url="^app.js\/debug[\/]?" />
</rule>
<rule name="StaticContent">
<action type="Rewrite" url="public{REQUEST_URI}"/>
</rule>
<rule name="DynamicContent">
<conditions>
<add input="{REQUEST_FILENAME}" matchType="IsFile" negate="True"/>
</conditions>
<action type="Rewrite" url="app.js"/>
</rule>
</rules>
</rewrite>
<security>
<requestFiltering>
<hiddenSegments>
<remove segment="bin"/>
</hiddenSegments>
</requestFiltering>
</security>
<httpErrors existingResponse="PassThrough" />
<iisnode watchedFiles="web.config;*.js" debuggingEnabled="false" />
</system.webServer>
</configuration>