Binding nested objects and collections?

Short answer: ASP.NET Core supports binding nested properties: public class Order {

Example code

public Customer Customer { get; set; }
public List<Product> Products { get; set; }
} Works seamlessly from JSON or form data if property names match.

Real-world example (ShopNest)

ShopNest registers AppDbContext as Scoped and IMemoryCache as Singleton. Putting DbContext in a Singleton causes threading bugs.

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.