From a simple map to a full Web GIS system.

I started by building a small project using pure JavaScript and Leaflet — no frameworks, just fundamentals.

The goal was simple: understand how maps actually work.

• how tiles load
• how layers are structured
• how GeoJSON is rendered
• how user interaction is handled

That project became my foundation.

Then I pushed it further.

I built a full-stack Web GIS application for Oil & Gas data, adding:

• real-time spatial queries (PostGIS)
• a FastAPI backend
• viewport-based loading (bbox filtering)
• dynamic filters (status-based)
• layer control + UI panel
• performance optimizations (debounce, request control)

The biggest shift wasn’t technical — it was conceptual:

I moved from:

“displaying data on a map”

to:

“designing how spatial data is requested, filtered, and rendered efficiently”

What I learned:

• Fundamentals matter more than frameworks
• Performance becomes critical with real data
• UI and data logic must stay in sync
• Debugging teaches more than tutorials

Projects:

🔹 👉 Leaflet Demo

🔹 👉 Oil & Gas GIS Web App

Next step:

Scaling this with clustering, vector tiles, and more advanced filtering.

If you’re learning GIS or web mapping — start simple.

It compounds faster than you think.