State Management Simplified with Redux Toolkit (Day-11)

 

Mastering State Management in React using Redux Toolkit

After getting comfortable with React and its core hooks, today’s focus was on understanding state management at a global level — especially through Redux Toolkit (RTK).

React’s local state works great for small apps, but as apps grow, managing shared state becomes complicated. That’s where Redux Toolkit steps in and makes things easier with a more streamlined API and reduced boilerplate.

 What I Covered Today:

 Theoretical Concepts:

  • What is state management and why it's needed in larger applications

  • Why Redux Toolkit is preferred over traditional Redux

  • Difference between local state (via useState) and global state (via Redux)

 Core Redux Toolkit Concepts:

  • configureStore to set up a Redux store

  • createSlice to define state + reducers together

  • Auto-generated action creators from slices

  • Using useDispatch to send actions and useSelector to read state

  • Understanding the structure of a global store with multiple slices

 What I Practiced:

  • Followed the official Redux Toolkit documentation

  • Created a basic test project to try out:

    • Slice creation

    • Dispatching actions

    • Selecting and displaying global state

What I Learned:

  • Redux Toolkit reduces boilerplate by combining actions and reducers in one place

  • State in Redux is immutable and centralized

  • useDispatch is used to send actions — unlike local setState, which directly mutates component state

  • useSelector allows access to only specific parts of the state, avoiding unnecessary re-renders

 One Tough Question I Had:

Why can’t we just call reducer functions directly like we do in useState? Why is dispatch needed?

At first, this made Redux feel over-complicated. But after exploring the docs and a few articles, it finally made sense:

Answer: Redux uses immutable state and follows a unidirectional data flow. dispatch() sends an action object to the reducer, and based on that, Redux returns a new state. This ensures that state updates are traceable, predictable, and don't mutate data directly — which is crucial in large apps.


 Gracias:

I’m grateful for the clean documentation of Redux Toolkit — and to my mentor for guiding me toward structured learning.
Now that I’ve covered the theory, I’m excited to try using Redux Toolkit in a real project very soon!

~ Sanya

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