How To Create QRCode Using Ant Design UI In ReactJS

Introduction

An enterprise-class UI design language and React UI library with high-quality React components, one of the best React UI libraries for enterprises.

A QR Code is a type of two-dimensional barcode that is used to store small amounts of text or data. Here we will learn how to create a QR code using Ant Design UI with React Js and type script. 

Preconditions

• Javascript
• Basic knowledge of React js
• Node.js
• V.S. Code,Visual Studio
• typescript

We cover the below things in this article: 

• Create React application
• Installation of Ant Design UI
• How to create a QR Code of Ant Design UI in React js.

Here we will follow the steps for creating a QR code.

Step 1. Run the below command to create a React.js project.

npx create-react-app my-app --template typescript

Step 2. Run the below commandto installg Ant Design UI.

npm i @ant-design/icons
npm i antd

Create the files according to the below image

.Step 3. Add the below code in the App.tsx

import React, { useState } from 'react';
import logo from './logo.svg';
import './App.css';
import { MinusOutlined, PlusOutlined } from '@ant-design/icons';
import { QRCode, Button } from 'antd';

function App() {
  const [size, setSize] = useState<number>(160);

  const increase = () => {
    setSize((prevSize) => {
      const newSize = prevSize + 10;
      if (newSize > 300) {
        return 300;
      }
      return newSize;
    });
  };

  const decline = () => {
    setSize((prevSize) => {
      const newSize = prevSize - 10;
      if (newSize < 48) {
        return 48;
      }
      return newSize;
    });
  };

  return (
    <>
      <Button.Group style={{ marginBottom: 16 }}>
        <Button onClick={decline} disabled={size <= 48} icon={<MinusOutlined />}>
          Smaller
        </Button>
        <Button onClick={increase} disabled={size >= 300} icon={<PlusOutlined />}>
          Larger
        </Button>
      </Button.Group>
      <QRCode
        errorLevel="H"
        size={size}
        iconSize={size / 4}
        value="https://ant.design/"
        icon="https://gw.alipayobjects.com/zos/rmsportal/KDpgvguMpGfqaHPjicRK.svg"
      />
    </>
  );
};

export default App;

Step 4. Add the below code in package.json

{
  "name": "qrcodeappant",
  "version": "0.1.0",
  "private": true,
  "dependencies": {
    "@ant-design/icons": "^5.1.4",
    "@testing-library/jest-dom": "^5.16.5",
    "@testing-library/react": "^13.4.0",
    "@testing-library/user-event": "^13.5.0",
    "@types/jest": "^27.5.2",
    "@types/node": "^16.18.34",
    "@types/react": "^18.2.8",
    "@types/react-dom": "^18.2.4",
    "antd": "^5.5.2",
    "react": "^18.2.0",
    "react-dom": "^18.2.0",
    "react-scripts": "5.0.1",
    "typescript": "^4.9.5",
    "web-vitals": "^2.1.4"
  },
  "scripts": {
    "start": "react-scripts start",
    "build": "react-scripts build",
    "test": "react-scripts test",
    "eject": "react-scripts eject"
  },
  "eslintConfig": {
    "extends": [
      "react-app",
      "react-app/jest"
    ]
  },
  "browserslist": {
    "production": [
      ">0.2%",
      "not dead",
      "not op_mini all"
    ],
    "development": [
      "last 1 chrome version",
      "last 1 firefox version",
      "last 1 safari version"
    ]
  }
}

Step 5. Run the below command to run the application.

npm start

After running this command, we will get this QR code.

Summary

This article taught us how to create a QR code using Ant Design UI with React Js and type script.