Modern applications don't just need features—they need observability.

When an API becomes slow, a database query takes too long, or an unexpected error occurs, developers need answers quickly. That's where SigNoz and OpenTelemetry come in.

For the Agents of SigNoz Hackathon 2026, I integrated SigNoz into my existing MERN Stack e-commerce application called Ram Store and transformed it into a fully observable application.

In this blog, I'll walk through what I built, how I instrumented it, the challenges I faced, and what I learned.

About the Project