What logging strategies would you use to debug issues in a REST API?

Short answer: Structured logging → Serilog, NLog, or built-in ILogger in ASP.NET Core. Request/response logging for debugging API calls. Correlation IDs to trace requests across microservices. Centralized logging → ELK Stack, Seq, Azure Application Insights. Log errors, warnings, and important info (not sensitive data). Q&A

Example code

Structured logging → Serilog, NLog, or built-in ILogger in ASP.NET Core. Request/response logging for debugging API calls. Correlation IDs to trace requests across microservices. Centralized logging → ELK Stack, Seq, Azure Application Insights. Log errors, warnings, and important info (not sensitive data). Q&A

Real-world example (ShopNest)

Creating an order is POST /api/orders → 201 with Location header. Fetching is GET /api/orders/{id} → 200 or 404.

Say this in the interview

1. Define — one clear sentence (the short answer above).
2. Example — relate it to a project like ShopNest or your real work.
3. Trade-off — when you would not use it.