What are some Common Libraries/Tools for State Normalization in Redux ?
State normalization in Redux involves organizing the state in a flat structure to simplify data access and manipulation. Several libraries and tools provide state normalization in Redux applications, streamlining state management and improving performance.
There are several common libraries/tools for state normalization in redux which are as follows:
Table of Content
- Normalizr
- Immutable.js
- Reselect
- Redux-ORM
- Normalizr-Immutable
- Redux-Entity-Utils
Normalizr
Normalizr is a popular library for normalizing nested JSON structures, making data easier to work with in Redux applications.
To install, run the following command on the terminal:
npm install normalizr
Features of Normalizr:
- Declarative schema definition for data normalization.
- Handles nested and relational data structures.
- Supports denormalization for easy data retrieval.
Use Cases: Normalizing API responses, and managing relational data in Redux stores.
Syntax:
import { normalize, schema } from 'normalizr';
// Define schema
const userSchema = new schema.Entity('users');
const articleSchema = new schema.Entity('articles', {
author: userSchema,
});
// Normalize data
const normalizedData = normalize(originalData, articleSchema);
Immutable.js
Immutable.js provides immutable data structures for JavaScript, which can be beneficial for managing normalized state in Redux.
To install, run the following command on the terminal:
npm install immutable
Features of Immutable.js:
- Immutable data structures for enforcing immutability.
- Persistent data structures for efficient memory management.
- Functional programming utilities for working with immutable data.
Use Cases: Immutable state management, ensuring data integrity in Redux stores.
Syntax:
import { Map, List } from 'immutable';
// Create immutable Map
const immutableMap = Map({ key: 'value' });
// Update immutable Map
const updatedMap = immutableMap.set('key', 'new value');
Reselect
Reselect is a library for creating memoized selectors in Redux, allowing efficient data retrieval from the Redux store.
To install, run the following command on the terminal:
npm install reselect
Features of Reselect:
- Memoized selector functions for efficient data access.
- Composable selectors for building complex data queries.
- Selector caching for improved performance.
Use Cases: Selecting and deriving data from normalized state in Redux stores.
Syntax:
import { createSelector } from 'reselect';
// Create memoized selector
const getFilteredItems = createSelector(
state => state.items,
items => items.filter(item => item.active)
);
Redux-ORM
Redux-ORM is a Redux add-on that provides a convenient way to manage normalized relational data in Redux stores.
To install, run the following command on the terminal:
npm install redux-orm
Features of Redux-ORM:
- Declares schema models to define the structure of normalized data.
- Handles relationships between entities.
- Provides ORM-style querying for data retrieval.
Use Cases: Managing relational data in Redux stores, simplifying state updates and queries.
Syntax:
import { ORM } from 'redux-orm';
// Define models
class User extends Model {}
class Post extends Model {}
// Initialize ORM
const orm = new ORM();
orm.register(User, Post);
Normalizr-Immutable
Normalizr-Immutable is an extension of Normalizr designed to work seamlessly with Immutable.js data structures.
To install, run the following command on the terminal:
npm install normalizr-immutable
Features of Normalizr-Immutable:
- Integrates Normalizr with Immutable.js for normalizing and denormalizing immutable data.
- Supports normalization of nested data structures.
Use Cases: Normalizing nested data structures with Immutable.js in Redux applications.
Syntax:
import { normalize, schema } from 'normalizr-immutable';
// Define schema
const userSchema = new schema.Entity('users');
const articleSchema = new schema.Entity('articles', {
author: userSchema,
});
// Normalize data
const normalizedData = normalize(originalData, articleSchema);
Redux-Entity-Utils
Redux-Entity-Utils is a library for managing normalized state in Redux applications, providing utility functions for working with entities.
To install, run the following command on the terminal:
npm install redux-entity-utils
Features of Redux-Entity-Utils:
- Simplifies entity management with helper functions.
- Handles CRUD operations on normalized state.
- Provides selectors for accessing normalized data.
Use Cases: Simplifying entity management in Redux stores, handling normalized state updates.
Syntax:
import { createReducer, createSelectors, createActions } from 'redux-entity-utils';
// Define entity actions, reducer, and selectors
const userActions = createActions('users');
const userReducer = createReducer('users');
const userSelectors = createSelectors('users');
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