Mastering Global State in Next.js: A Deep Dive into Redux Toolkit

Introduction: Briefly explain the state management challenges in large Next.js applications and why standard useState or Context API might fall short. The Rise of Redux Toolkit (RTK): Discuss why RTK is now the standard for Redux, focusing on features like simplified setup (configureStore), immutable updates with Immer, and automated slice creation (createSlice). Integrating RTK with Next.js App Router: Explain the common pattern of creating a Redux Provider component (<Provider store={store}>) as a Client Component to wrap the application where state is needed. Core RTK Concepts: Define and illustrate: 1. Slices (createSlice): The unified way to manage state, reducers, and actions. 2. Async Thunks (createAsyncThunk): The clean solution for fetching data and handling pending/fulfilled/rejected states. Conclusion: Summarize how Redux Toolkit offers a robust, scalable, and predictable way to manage complex global state in any Next.js project.