DigiPin Reverse Lookup – Decode Lat/Long from DigiPin

🔄 Reverse DIGIPIN Lookup — Decode Location from a 10-Digit Code

After launching the DIGIPIN Generator that converts latitude and longitude into a unique 10-digit alphanumeric code, it’s time to introduce the much-awaited companion feature: DigiPin Reverse Lookup – Decode Lat/Long from DigiPin!

📌 What Is DIGIPIN Reverse Lookup?

The Reverse Lookup API lets you input a valid DIGIPIN like 39J-34T-T563 and get back the approximate latitude and longitude it represents.

This feature is helpful if you’ve been given a DIGIPIN but don’t know where it maps to geographically.

🧪 Example Request

POST /api/digipin/decode
Content-Type: application/json

{
    "digiPin": "39J-34T-T563"
}

📬 Example Response

{
    "latitude": 28.6748,
    "longitude": 77.2187
}

🌐 Live Demo (UI)

The public dashboard has been updated with a Reverse Lookup form, where users can paste their DIGIPIN and view the decoded coordinates. The UI is built using ASP.NET Core Razor Views with Bootstrap 5 styling.

🔗 Try Reverse Lookup UI

Users can:

Enter a DIGIPIN
Submit and decode it instantly
See the latitude and longitude
Copy the coordinates using a one-click button

Here’s what the UI looks like:

🔐 Input Validation & Messaging

The UI and API both validate inputs. A valid DIGIPIN must:

Be exactly 10 characters long (excluding dashes)
Use only supported characters

Feedback messages include:

DIGIPIN must be exactly 10 characters
DIGIPIN is invalid or could not be decoded
Latitude = 28.6748, Longitude = 77.2187

🧱 Technical Stack

✅ ASP.NET Core 9 Web API
✅ Razor Pages (MVC)
✅ JSON-based REST endpoints
✅ Bootstrap 5 styling
✅ JavaScript clipboard interaction

🛡️ Privacy First

Just like the generator, no user data is stored. All lookups are processed in-memory and nothing is logged or saved to a database.

🚀 Future Enhancements

🗺️ Show decoded coordinates on a real-time map
📤 Upload and decode multiple DIGIPINs in bulk
📄 Export results as CSV or PDF
🔑 Add authentication and API rate limits

💬 Feedback & Collaboration

I’d love to hear your feedback or suggestions! Feel free to explore:

💻 APIverse UI Dashboard

Happy decoding! 🌍

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Wednesday, June 25, 2025