How to generate QR Codes with Angular 10 ?

QR Code (Quick Response Code) has become the essential component for each and every product, organization, app, etc. In marketing campaigns, we can use the generated QR code to

• Download apps
• Send Email
• View business location etc.

In this article let us see how to generate QR Codes with Angular 10.

Prerequisites: In your local development machine Node 10+, together with NPM 6+ must have been installed.

• Node can be installed from https://nodejs.org/en/download/
• Once installed we can verify the same by using

node --version

• npm can be installed from https://docs.npmjs.com/getting-started/
• Once installed we can verify the same by using

npm --version

 

Step 1: Installing Angular CLI 10

From the command line prompt, provide the following command to install

 npm install -g @angular/cli

As per the current version, it will be installed, and best that the version should be 10+

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Step 2: Let us create a new Angular app

We can use Visual Studio Code editor or even from the command line prompt, we can create a sample project that generates QR code

ng new <projectname>

Here let us have "angular10qrcodegeneration" as the projectname

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Now the project structure of "angular10qrcodegeneration" will be

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Navigate to the project directory where package.json is present

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Step 3: To generate QRCode, we need the required dependency. It can be installed by using

 npm install @techiediaries/ngx-qrcode

Once this is installed, in src->app->qrcodeapp.module.ts file, we can use

import { NgxQRCodeModule } from '@techiediaries/ngx-qrcode'; 

And in

@NgModule({
imports: [ NgxQRCodeModule ] Can be given

We need to additionally import FormsModule. So, our  src->app->app.module.ts snippet 

 

Now the library has been imported, and we can use the "ngx-qrcode" component in Angular application.

 

Steps to build the project

ng build (at the location where your package.json present)

Steps to run the project:

ng serve (at the location where your package.json present)

As the code is set run on port 4200, on hitting http://localhost:4200/, we can able to see the output as

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We can specify any valid website URL, and we can generate QR codes successfully in Angular 10. In CSS, we can beautify the shadow display.

Let us see the output for the google website

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Conclusion: Many important libraries like QRCode generators are available in npm Angular. We can effectively use them according to our needs. QRCode is an essential component for any application/mobile app etc.