To set up Redux Toolkit (RTK) in a React project, you install the required packages, create a slice, configure the store, and connect it to your React components using React-Redux hooks.
Install dependencies: npm install @reduxjs/toolkit react-redux
Create a slice using createSlice for your state and reducers.
Configure the store using configureStore and add your slices as reducers.
Wrap your app with <Provider store={store}> in index.js.
Use useSelector to read state and useDispatch to trigger actions in your components.
Can you walk me through the steps you'd take to add Redux Toolkit to a new Create React App project?
If you need to fetch a list of users using RTK Query, how would you set up the API slice and use it in a component?
What files would you create, and how would you configure the store to enable the Redux DevTools extension?
We have a feature that requires optimistic updates when adding items to a cart. How would you configure RTK and its middleware to handle this, and what pitfalls might you encounter?
During a code review you notice that the store is being re-created on every render. How would you debug and fix the issue in a React project using RTK?
Our team wants to share the same RTK Query API slice across multiple micro‑frontends. What considerations would you make in the store setup?
Our application is experiencing performance degradation due to large normalized state and frequent re-renders. How would you redesign the RTK store, selectors, and middleware to improve scalability?
We need to migrate a legacy Redux codebase that uses thunks and manual reducers to Redux Toolkit while keeping the app online. What strategy would you use for incremental migration and testing?
Explain how you would structure the store and RTK Query endpoints to support server‑side rendering in a Next.js app, addressing caching and hydration.
Across several product teams we want a shared, versioned RTK Query API layer that can evolve without breaking downstream apps. How would you design the architecture, versioning strategy, and integration guidelines?
Our organization is moving from a monolithic Redux store to a modular, feature‑based store architecture using Redux Toolkit. What are the long‑term trade‑offs, and how would you ensure consistency, type safety, and CI enforcement?
If you had to decide between keeping Redux Toolkit in the client versus moving most data fetching to GraphQL, what factors would influence your decision, and how would you phase the transition?
