Proxy DataFast with Express.js

Learn how to proxy DataFast analytics through your Express.js server to bypass adblockers and improve accuracy.

1. Install Required Dependencies

npm install express-http-proxy

2. Add Proxy Configuration

Add the following to your Express.js application:

const express = require('express');
const proxy = require('express-http-proxy');
const app = express();

// Proxy the script
app.use('/js/script.js', proxy('datafa.st', {
  proxyReqPathResolver: function (req) {
    return '/js/script.js';
  }
}));

// Proxy the events endpoint
app.use('/api/events', proxy('datafa.st', {
  proxyReqPathResolver: function (req) {
    return '/api/events';
  }
}));

// Your other routes...
app.listen(3000);

3. Update Your Script Tag

Replace your existing DataFast script with the proxied version:

<script
  defer
  data-website-id="yourwebsiteid"
  data-domain="yourdomain.com"
  src="/js/script.js"
></script>

4. Deploy your server

The proxy configuration will take effect automatically after deployment.

Verification

To verify the proxy is working:

1. Visit your website
2. Open the network tab in your browser's developer tools
3. Check that analytics requests are going through your domain instead of datafa.st