Redux Architecture in React JS

Software architectural design is a visual depiction of a system that explains how it will function based on software parts, relationships, and properties. This comprehensive Software Architecture and Design article will quickly and easily teach you everything you need to know about the subject.

To begin, what do I need to know?

There's nothing special you need to know except the basics of the Redux library ahead of time for this session. All it takes is a desire to create high-quality applications. This tutorial covers the Software Architecture and Design course.

 

What is Software Architecture Design, and what does it entail?

An architectural software design is a representation of a system that helps to understand how it will function. It's a well-organized framework for imagining software pieces, interactions, and attributes.

It serves as the system's and project's blueprints. The term "software architecture" refers to the process of creating and constructing a solution that connects technical and operational needs.

Significant variables such as business strategy, quality, human resources, software design, and environment are included in the software architectural design shown in the diagram above.

It optimizes several properties, including security, performance, and manageability, through a series of judgments. These choices have an impact on the quality, upkeep, performance, and overall success of the application.

 

The Significance of Software Architecture Design?

• Software should be created with the user, system, and business goals in mind. Software architecture refers to a plan for implementing a program's structure in accordance with its rules and specifications.

• The preceding design decisions guiding the system to be created manifest themselves in software architecture, which may then be examined.

• For mutual understanding, discussion, and agreement, software architecture takes into account stakeholder communication.

• Software architecture is a transportable abstraction of a system that may be reused at a wide scale.

• It establishes a common vocabulary through which various problems can be conveyed.

• The use and interaction of the primary features and components within an application is the subject of software architecture.

 

Goals of Software Architecture Design

• Performance, security, and manageability are just a few of the expected quality attribute improved through software architecture design.
• Good design and architecture eliminate business risks and are adaptable to changes in hardware and software technology that occur over time. The basic purpose of software architecture design is to create a link between business and technological needs.
• To determine the requirements that have an impact on the application's basic structure.
• Consider the overall impact of your design choices.
• To manage changes in user scenarios and requirements, the design should be adaptable.
• To figure out how to implement the use cases in the software in many ways.

 

Parts of the Redux Architecture and Data Flow:

Nowadays, one of the most popular and common design patterns is MVC that stands for Model, View, Controller. In MVC, the raw data is used for the model of the application. The logic uses the raw data and turns it into functions that control the state of the application. Based upon the mechanism, Redux architecture follows the below flowchart.

 

Redux is almost similar to the flutter architecture, and it derives from it. Being a library, Redux behaves like a state container and helps to manage the data flow of an application. The two most significant improvements that Redux offers are a store that is accessible and subscribable to all React components. A reducer inside that store will determine the changes to your application's state.

 

Actions

As you already know that the typical action in Redux is the same as Flux with an object with a type property. For instance:

const CHANGE_VISIBILITY = 'CHANGE_VISIBILITY';

const action = {

    type: CHANGE_VISIBILITY,

    visible: false

}

Here, I’ve created  CHANGE_VISIBILITY as a constant for the action types. Many tools/libraries support Redux and solve various problems that need the kind of action only. Therefore, it is just a convenient way to transfer this information. The visible property is the metadata that I’ve used above. It has nothing to do with Redux. It defines something in the context of the application.

Whenever you dispatch a function, you must have to use such objects, which is very disturbing. Action Creators solve such a hassle with ease. It is a function that returns an object.

For instance:

const changeVisibility = visible => ({

    type: CHANGE_VISIBILITY,

    visible

});

changeVisibility(false);

 

Store

Creating a store using the Redux library is as simple as water. The Redux library provides a helper is called createStore for creating a store. Its syntax is as follows:

import { createStore } from 'redux';

createStore([reducer], [initial state], [enhancer]);

While the Flux architecture makes your code much less readable and pushes ahead to props drilling, Redux encapsulates our React component with a Provider that provides you a Store that contains most of your application’s state.

import React from 'react';

import ReactDOM from 'react-dom';

import { Provider } from 'react-redux';

import { createStore } from 'redux';

import { taskReducer } from './reducers/taskReducer';

import './index.css';

import App from './App';

const store = createStore(taskReducer);

ReactDOM.render(<Provider store={store}><App /></Provider>, document.getElementById('root'));

 

Reducer

Another great offering of the Redux is the Reducer. It is a pure function, which returns the identical output of the given input every time. It does not bother your code by accessing a global variable or making an async call. Let me give you an example of a basic Reducer.

const countReducer = function (state, action) {

    if (action.type === ADD) {

       return { value: state.value + 1 };

    } else if (action.type === SUBTRACT) {

       return { value: state.value - 1 };

    }

    return { value: 0 };

};

As you can see, the above function returns a brand new object every time.