Modern Frontend Data Management: Principles, Tools, and Migration from Redux

Context

You are building a large React SPA that renders high-churn, real-time data (e.g., lists that update frequently, user carts, orders, maps/locations). You need to design a modern approach to data management that scales, is resilient to network variability, and is easy to evolve.

Tasks

1. Explain modern frontend development principles for data management.
2. Differentiate client state vs. server state, including where each should live and why.
3. Compare Redux with newer tools:
   • Server state: React Query, SWR
   • Client state: Zustand, Recoil, MobX Discuss trade-offs in: boilerplate, learning curve, performance, caching, normalization, optimistic updates, error handling, and testing.
4. Propose a migration plan from a Redux-based app to a more modern stack, including incremental adoption, interoperability, and risk mitigation.