QR Code Generator Using Angular

QR Code Generator

A QR code is the most popular method for securely scan the primary information. Ideally, it is a matrix barcode displayed in a square box being used in mobile devices for securely sharing the location information, essential data, product information through a scanning mechanism. You will find an ideal way to create or generate QR codes in the Angular 12 application.

We will use will use the angular2-qrcode library to create QR codes in angular applications. It is a powerful component that allows an exorbitantly facile way to integrate QR code in your angular project. It is based on qrious to generate or create QR Codes. The Qrious is JavaScript based library which helps in QR code generation with the help of canvas.

Let see one by one steps to create the QR code generator.

1. Install angular cli using – npm install -g @angular/cli
2. Create new project using – ng new angular-qr-code-demo
3. Switch to project name using – cd angular-qr-code-demo
4. Install angular2-qrcode using – npm install angular2-qrcode
5. Update QRCodeModule in App Module – refer below code

Add below code in app.module.ts file –

6. Integrate QR Code Generator – The <qr-code> directive creates a QR code image that you can use to get scanned for sharing some sort of information. Put below code in app.component.html file

You can create three custom functions that update the name, width, and level of the QR code component and add some static values to the QR code module; anyhow, you can insert dynamic values to deal with the QR code.

7. Start Angular App – You can start your angular development server using the ng serve command and below  is the url that can help you test the app:

http://localhost:4200

Conclusion: So this is basic process to create the qr code using angular2-qrcode and how exactly qr code generator works. Here is nothing more complicated things. We just need to install the plugin and need to import the module in app.module and you can use the qr code directive directly. You can customize all the inputs as well that is not covered in this example. I hope you enjoyed reading this article and this article will be helpful for you to understand the basic idea about QR code.