Abstract
In this talk, I’ll show how to instrument applications end-to-end with OpenTelemetry, capturing metrics, traces, and logs across the entire request lifecycle. You’ll learn to pinpoint errors, understand why they happen, and fix them more efficiently, guided by real-world examples and a starter template for quick adoption.

Outline
FullStack observability is crucial for modern apps. We’ll explore how to unify data from the frontend to the database, detect anomalies, and connect logs, traces, and metrics for deeper insights. I’ll demonstrate how to set up OpenTelemetry for JavaScript and Node.js while highlighting best practices for correlating errors and improving reliability.

takeaways:

- Grasp OpenTelemetry basics for distributed systems
- Implement end-to-end monitoring in JavaScript/Node.js
- Create instrumentation points across all layers
- Correlate errors—from crashes to invalid database data—using traces and logs
- Use a starter template to kick off OpenTelemetry adoption