Create an Offline DIGIPIN Microservice API for Precise Location Mapping in India

This workflow contains community nodes that are only compatible with the self-hosted version of n8n. **What is DIGIPIN?** DIGIPIN (Digital Pincode) is a 10-character alphanumeric code introduced by India Post. It maps any 3x3 meter square in India to a unique digital address. This helps precisely locate homes, shops, or landmarks, especially in areas where physical addresses are inconsistent or missing. **What this workflow does** This workflow creates a fully offline DIGIPIN microservice using only JavaScript - no external APIs are used. You get two HTTP endpoints: - GET /generate-digipin?lat={latitude}&lon={longitude} — returns a DIGIPIN - GET /decode-digipin?digipin={code} — returns the latitude and longitude You can plug this into any system to: - Convert GPS coordinates to a DIGIPIN - Convert a DIGIPIN back to coordinates **How it works** 1. An HTTP Webhook node receives the request. 2. A JS Function node either encodes or decodes based on input. 3. The result is returned as a JSON response. All the logic is handled inside the workflow - no API keys, no external calls. **Why use this** - Fast and lightweight - Easily extendable: you can connect this to forms, CRMs, apps, or spreadsheets - Ideal for field agents, address validation, logistics, or rural operations