What is the Unit of Work pattern?

Short answer: The Unit of Work pattern is a design pattern used to maintain a list of operations to be performed within a single transaction. It ensures that all operations either succeed or fail together, providing consistency and managing changes to multiple business objects during a transaction. It coordinates the writing out of changes and resolves potential concurrency issues.

Real-world example (ShopNest)

Patterns in ShopNest should solve a real pain (swappable payments, test seams)—not be added for decoration.

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.