Generate and Decode DIGIPIN

## DIGIPIN Generator and Decoder

This n8n workflow lets you **generate and decode DIGIPINs** using only JavaScript - no external APIs involved.

DIGIPIN is India Post’s geolocation code system that encodes latitude and longitude into a 10-character alphanumeric string, like `32C-849-5CJ6`. It helps simplify precise location sharing across India.

### 🔧 What it does
- `/generate-digipin?lat=...&lon=...` → returns the DIGIPIN for given coordinates
- `/decode-digipin?digipin=...` → returns the coordinates for a given DIGIPIN

Useful for: check-in systems, last-mile delivery, digital address verification, or simple location sharing.

### ⚙️ How to use
- Add your own webhook URLs or run locally
- Pass query parameters to trigger either route
- Both encode/decode logic is handled inside Function nodes

No credentials, APIs, or setup required.