ReactJS Framework 18 – Architecture – CRUD Example App – Axios – Json-Server – Hooks – Part 1

ReactJS is a powerful JavaScript library used for building user interfaces. It provides a component-based architecture that allows developers to create reusable UI elements. In this article, we will explore the architecture of a CRUD (Create, Read, Update, Delete) example app using ReactJS and various tools such as Axios, JSON-Server, and Hooks.

To get started, let’s first understand the basic structure of a ReactJS app. A ReactJS app is composed of multiple components. Each component represents a specific part of the user interface. Components can have sub-components, forming a hierarchical structure.

One of the most significant features of ReactJS is its virtual DOM (Document Object Model). ReactJS uses a virtual DOM to efficiently update only the parts of the user interface that have changed, instead of re-rendering the entire page. This results in better performance and responsiveness.

To demonstrate the CRUD functionality, we will be using the Axios library for making HTTP requests from the React app to a server. We will also be using JSON-Server, a lightweight server that allows us to mock a RESTful API using a JSON file as a data source.

Now, let’s understand how Hooks work in ReactJS. Hooks are functions that allow developers to use state and other React features without writing a class. Hooks provide a more concise and straightforward way to manage state in functional components.

To create our CRUD example app, we will start by setting up the project structure. Open your preferred text editor and create the following files:

1. index.html
2. App.js
3. Package.json
4. data.json

In the “index.html” file, add the following HTML structure:

“`

“`

In the “App.js” file, write the following code:

“`jsx
import React from ‘react’;

function App() {
return (

);
}

export default App;
“`

In the “Package.json” file, add the following code:

“`json
{
“name”: “react-crud-example”,
“version”: “1.0.0”,
“description”: “A CRUD example app using ReactJS”,
“scripts”: {
“start”: “react-scripts start”
},
“dependencies”: {
“axios”: “^0.24.0”,
“react”: “^18.0.0”,
“react-dom”: “^18.0.0”,
“react-scripts”: “^5.0.0”
},
“devDependencies”: {},
“browserslist”: {
“production”: [
“>0.2%”,
“not dead”,
“not op_mini all”
],
“development”: [
“last 1 chrome version”,
“last 1 firefox version”,
“last 1 safari version”
]
}
}
“`

Finally, in the “data.json” file, add some sample data that will be used in our CRUD example:

“`json
[
{
“id”: 1,
“title”: “ReactJS”,
“description”: “A JavaScript library for building user interfaces”
},
{
“id”: 2,
“title”: “Vue.js”,
“description”: “A progressive JavaScript framework”
},
{
“id”: 3,
“title”: “Angular”,
“description”: “A platform for building web applications”
}
]
“`

Now that we have set up the basic structure of our project, we are ready to move on to the next part, where we will start implementing the CRUD functionality using Hooks, Axios, and JSON-Server.

In the next part of this series, we will create the necessary components and use Hooks to manage the state of our app. We will also use Axios to fetch data from the JSON-Server and render it on the UI.

Stay tuned for Part 2 of this article, where we will dive deeper into the implementation details of our ReactJS CRUD example app.

To be continued…

(Note: The examples provided in this article are based on ReactJS version 18 and may differ slightly from previous or future versions.)