Generating a QR code with SkiaSharp

[jonsagara]

Hi,

I need to generate a QR code on the fly that is displayed on a web page using a base64 data string, i.e.:

<img src="data:image/png;base64,aaaabbbbcc...." />

Using ZXing.Net, SkiaSharp, and the SkiaSharp bindings, this is what I have come up with:

const int widthPixels = 150;
const int heightPixels = 150;
const string qrCodeContent = "https://www.example.com";

BarcodeWriter qrWriter = new()
{
	Format = BarcodeFormat.QR_CODE,
	Options = new QrCodeEncodingOptions
	{
		Height = heightPixels,
		Width = widthPixels,
		Margin = 0,
	},
};

using SKBitmap qrCode = qrWriter.Write(qrCodeContent);
using SKImage skImage = SKImage.FromBitmap(qrCode);
using SKData encoded = skImage.Encode(SKEncodedImageFormat.Png, 100);
var imageData = Convert.ToBase64String(encoded.AsSpan());

This does generate a QR code that displays properly.

Are there any problems with this approach? Can it be improved or optimized in any way?

Thank you,

Jon

[micjahn]

Do you really need this line here?
using SKImage skImage = SKImage.FromBitmap(qrCode);
Isn't it possible to use qrCode directly?
using SKData encoded = qrCode.Encode(SKEncodedImageFormat.Png, 100);

[jonsagara]

Turns out I do not. Thanks for the feedback!