Gino’s Gelato has launched online ordering, but customers are reporting that checkout is slow. Is the problem in the browser, API, application code, or database?

In this rapid, demo-intensive session, we’ll use a Playwright customer journey to reproduce the problem, then follow the transaction through Azure Application Insights from the React frontend to the ASP.NET Core API and Azure SQL. You’ll see how distributed tracing and dependency telemetry turn a vague complaint into a specific performance bottleneck.

Finally, we’ll bring that production evidence back to the repository and use GitHub Copilot to investigate the affected code and identify a safe path forward. No dashboard tour, just one real issue traced from customer symptom to likely code fix.

FastFocus - 20 Min
Takeaways
Reproduce production symptoms with Playwright.
Trace slow transactions across every application layer.
Use telemetry and Copilot to investigate the right code.