.NET CORE API

Generate QR Code in 4 Lines of Code

A QR code is a computer-readable identification that contains data about the item to which it is attached. The article demonstrates how to return the QR Code image as a response from .Net Core API.

QR-Code Live Demo

Prerequisites

• Visual Studio or Visual Studio Code already installed
• Install the below package, i.e., “QRCoder” via NuGet package manager.

Install-Package QRCoder

Let’s Start

The “QRCoder” DLL helps to generate QR code with just four lines of code in C#.

4 Lines of Code Snippet

QRCodeGenerator qrGenerator = new QRCodeGenerator();
QRCodeData qrCodeData = qrGenerator.CreateQrCode(qrText, QRCodeGenerator.ECCLevel.Q);
QRCode qrCode = new QRCode(qrCodeData);
Bitmap qrCodeImage = qrCode.GetGraphic(20);

Description of each line of code

Initialize the QR code generator class