Fanos: The Ultimate Beacon API Wrapper for Reliable Data Transmission

Sending data asynchronously in web applications can be tricky, especially when you need reliability without blocking the main thread. Meet Fanos, a lightweight JavaScript library that simplifies sending asynchronous requests using the Beacon API with a fallback to Fetch for maximum reliability.

Whether you're building analytics, logging systems, or tracking user interactions, Fanos ensures your data is transmitted efficiently and reliably, even in challenging network conditions.

• Non-blocking requests: Uses the Beacon API for asynchronous data transmission.
• Automatic retries: Stores failed requests and retries them automatically.
• Fetch fallback: Falls back to the Fetch API if Beacon isn’t supported.
• Multiple payload formats: Supports JSON, FormData, Blobs, and more.
• Debug mode: Logs internal operations for easy troubleshooting.

Install

Install Fanos via npm:

npm install fanos 

Or include it directly in your HTML:

<script src="https://cdn.jsdelivr.net/npm/fanos@latest/dist/fanos.umd.min.js"></script> 

Basic Usage

Here’s how to get started in just a few lines of code:

import Fanos from 'fanos'; // Configure the global instance Fanos.configure({ url: 'https://example.com/api/log', // Your endpoint debug: true, // Enable debug logging }); // Send a simple payload Fanos.send({ event: 'click', timestamp: Date.now() }) .then(() => console.log('Data sent successfully!')) .catch(err => console.error('Failed to send data:', err)); 

Browser Support

Fanos works in all modern browsers:

• Chrome
• Firefox
• Safari
• Edge

For older browsers, enable the Fetch fallback:

Fanos.configure({ fallbackToFetch: true }); 

Get Started Today!

Ready to simplify your data transmission? Check out the Fanos GitHub repository for more details, examples, and documentation.Give it a START or contribute if you like it.