How do you ensure API versioning in microservices?

Short answer: API versioning ensures that changes to an API do not break backward compatibility, which is crucial in a microservices architecture where multiple teams may be consuming services. Strategies for API Versioning:

Real-world example (ShopNest)

ShopNest splits Catalog, Cart, Order, and Payment into services so teams can deploy catalog changes without redeploying payments.

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.