Create a QR Code Generator with Angular 12

Angular 12 generate QR code example; In this tutorial, i am going to show you how to generate qr code in angular 12 app using npm angularx-qrcode –save.

Well, the QR – which stands for “quick response” – code is basically a barcode on steroids. While the barcode holds information horizontally, the QR code does so both horizontally and vertically. This enables the QR code to hold over a hundred times more information.

How to Create/Generate QR Code in Angular 12 App

• Step 1 – Create New Angular App
• Step 2 – Install angularx-qrcode npm Package
• Step 3 – Import QR Code Library on app.module.ts File
• Step 4 – Add Code on View File
• Step 5 – Add Code On Component ts File
• Step 6 – Start Angular App

Step 1 – Create New Angular App

First of all, open your terminal and execute the following command on it to install angular app:

ng new my-new-app

Then execute the following command on terminal to install angular material:

ng add @angular/material

Step 2 – Install angularx-qrcode npm Package

In this step, you need to install angularx-qrcode in our angular application. So, open your terminal and execute the following command:

npm install angularx-qrcode --save

Step 3 – Import QR Code Library on app.module.ts File

Go to src/app directory and open app.module.ts file. Then add the following code into it:

import { BrowserModule } from '@angular/platform-browser';
import { NgModule } from '@angular/core';
  
import { AppComponent } from './app.component';
import { QRCodeModule } from 'angularx-qrcode';
  
@NgModule({
  declarations: [
    AppComponent
  ],
  imports: [
    BrowserModule,
    QRCodeModule
  ],
  providers: [],
  bootstrap: [AppComponent]
})
export class AppModule { }

Step 4 – Add Code on View File

Create html and for display qr code in angular app. So, visit src/app/app.component.html and update the following code into it:

<h1>How to Generate QR Code in Angular 12? - lara.com</h1>
   
<qrcode [qrdata]="'myAngularxQrCode'" [width]="256" [errorCorrectionLevel]="'M'"></qrcode>

Step 5 – Add Code On Component ts File

Go to the src/app directory and open app.component.ts. Then add the following code into component.ts file:

import { Component } from '@angular/core';
  
@Component({
  selector: 'app-root',
  templateUrl: './app.component.html',
  styleUrls: ['./app.component.css']
})
export class AppComponent {
  public myAngularxQrCode: string = null;
  
  constructor () {
    this.myAngularxQrCode = 'ItSoluionStuff.com';
  }
}

Step 6 – Start Angular App

Execute the following commands on terminal to start angular app:

ng serve

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