Codebold IT Solutions · Redux Development

Predictable state, built to scale with your app.

Redux gets a bad reputation for boilerplate — usually because of how it's set up, not the tool itself. With Redux Toolkit, modern Redux is a fraction of the code it used to be, with a predictable, testable data flow that scales past the point where local state and Context start fighting you.

See how we build

— What you get

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A Redux store
your team can
actually reason about.

01

Redux Toolkit by default

Slices, createAsyncThunk, and RTK Query instead of hand-written action types and switch statements — modern Redux, not 2016 Redux.

  • Redux Toolkit
  • Slices
  • RTK Query

02

Predictable data flow

One direction: action → reducer → store → UI. Every state change is traceable, testable, and debuggable with the Redux DevTools.

  • Single Source of Truth
  • DevTools
  • Time-Travel Debugging

03

Selectors that don't over-render

Memoized selectors mean components only re-render when the slice of state they actually use changes.

  • Reselect
  • Memoization
  • Performance

04

Middleware done right

Async logic, logging, and side effects handled through middleware — not scattered across components.

  • Thunks
  • Middleware
  • Side Effects

05

TypeScript-first

Typed state, typed actions, typed selectors — catch a wrong action shape at compile time, not in production.

  • TypeScript
  • Typed Hooks

06

Migration from legacy Redux

Already have a Redux store built the old way? We migrate it to Redux Toolkit incrementally, without a rewrite.

  • Legacy Migration
  • Incremental Refactor

— How data flows through Redux

01

01

Action

A component dispatches an action — a plain JavaScript object describing what happened, like { type: 'cart/itemAdded', payload: item }. It says what happened, never how the state should change — that separation is what makes Redux state changes traceable and replayable.

02

Reducer

The reducer takes the current state and the action, and returns a brand new state object — it never mutates the original. A pure function with no side effects, which is exactly what makes it predictable: same state, same action, same result, every single time.

03

Store update

The store swaps in the new state and notifies every part of the app that's subscribed to it, but only the specific subscriptions actually affected. This is also the moment Redux DevTools captures a snapshot, so every state change becomes a step you can rewind to.

04

Re-render

Connected components re-render — but only the ones whose selected slice of state actually changed, thanks to memoized selectors. A cart total updating doesn't re-render the navigation bar, even though both are technically connected to the same store.

— Why Codebold

State management that holds up, at scale.

Building software since 2013.

✓

We reach for Redux when it's actually needed

Not every app needs Redux. We'll tell you honestly if Context or Zustand would serve you better before we write a single reducer.

✓

React is one part of a full stack

State management is only half the picture — we build the APIs and backend behind it too, in Node.js or Python.

✓

We stay after launch

Fixes, updates, and the next feature are part of the relationship — not a renegotiation every time something needs to change.

— Tech depth

The rest of the stack, covered too.

01

Language & framework

ReactNext.jsTypeScriptJavaScript (ES6+)
02

State & data

— Good questions

Before you ask, we'll answer.

Depends on the app. Redux earns its place when you have complex, cross-cutting state and need serious debugging tools — DevTools, time-travel, middleware. For simpler apps, we'll say so and reach for something lighter instead.

Yes, and usually incrementally — slice by slice, without freezing feature work while it happens.

Yes, with the server/client component split handled correctly so the store only initializes on the client.

Yes — the repository, the code, and everything in it are yours from day one.

We stay on. Fixes, updates, and the next feature are part of the relationship, not a separate negotiation.

Setting up the store and initial slices is usually a few days. The bigger investment is modeling your state shape correctly up front — that's where we spend the real time.

— Let's talk

Have a project
in mind?

Tell us what you're building — we respond to every enquiry within 24 hours, with next steps, not a sales pitch.

Working with clients internationally, since 2013.