Configuring CORS globally vs per endpoint?

Short answer: Global CORS: Apply a policy for all endpoints by adding middleware early in the pipeline with app.UseCors(...). Per-endpoint CORS: Apply CORS policies selectively using the [EnableCors("PolicyName")] or [DisableCors] attributes on controllers or actions.

Real-world example (ShopNest)

A ShopNest checkout request flows through middleware, hits a minimal API or controller, uses scoped services, and returns ProblemDetails on errors.

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.