How to sent generated qr code in jpg to user directly on whatsapp no

Bhavesh Vankar

how to send generated QR Code to users whatsapp no directly in .jpg file using asp.net c#.

i want to generate QR Code for MoNo And some details like name, address and pin and this QR Code should be send directly to user in .jpg file on whatsapp no.

is this possible and how to do this using Asp.Net c#.

4 Replies

Know the answer? Post it — somebody with the same question will find it here.

Bhavesh Vankar5y ago
QR Code is already generated. now just need how to send that generated QR code directly to user's whatsapp no using asp.net C#.
i have already refer many sites but still not getting proper idea.
some site says register whatsapp upi or on WART etc.

their is no any simple method to do this ?
kindly suggest or if possbile so give with example.
thanks
+1
Leon D5y ago
You can use Free Spire.Barcode API to generate QR Code using c#, the API can be downloaded via the following link or installed via NuGet.
https://www.e-iceblue.com/Download/download-barcode-for-net-now.html
BarcodeSettings settings = new BarcodeSettings();
settings.Type = BarCodeType.QRCode;

settings.Data = "Hello 123456789";
settings.Data2D = "Hello 123456789";
settings.QRCodeDataMode = QRCodeDataMode.AlphaNumber;
settings.X = 1.0f;
settings.QRCodeECL = QRCodeECL.H;

BarCodeGenerator generator = new BarCodeGenerator(settings);
Image image = generator.GenerateImage();
image.Save("QRCode.png");
For more information, visit this link:
https://www.e-iceblue.com/Tutorials/Spire.Barcode/Spire.Barcode-Program-Guide/Create-a-QR-Code-in-C.html
+1
Kip Hackman5y ago
You can use LEADTOOLS Barcode Pro SDK technology in your C# ASP.NET application.
https://www.leadtools.com/sdk/products/barcode-pro
You can leverage the BarcodeWriter class, which allows you to write any LEADTOOLS supported barcode type to an image, such as QR codes.

Disclaimer: I am an employee of this toolkit.

Here is some sample code:
// Write/Generate Barcode using LEADTOOLS SDK
// Create new image to add QR barcodes to
using (RasterImage _image = RasterImage.Create(2550, 3300, 24, 300, RasterColor.White))
{
    BarcodeEngine _engine = new BarcodeEngine();
    BarcodeWriter _writer = _engine.Writer;

    // Set barcode options
    QRBarcodeData _qrData = BarcodeData.CreateDefaultBarcodeData(BarcodeSymbology.QR) as QRBarcodeData;
    _qrData.SymbolModel = QRBarcodeSymbolModel.Model1AutoSize;
    _qrData.Value = "QR Data 1";

    // Bounds indicating where to place the barcode on the image
    _qrData.Bounds = new LeadRect(0, 0, _image.ImageWidth, _image.ImageHeight);

    QRBarcodeWriteOptions _options = new QRBarcodeWriteOptions();

    _options.GroupNumber = 0;
    _options.GroupTotal = 0;
    _options.HorizontalAlignment = BarcodeAlignment.Near;
    _options.VerticalAlignment = BarcodeAlignment.Near;
    _options.XModule = 30;
    _options.ECCLevel = QRBarcodeECCLevel.LevelL;

    // Write image to barcode
    _writer.WriteBarcode(_image, _qrData, _options);

    // Save image to JPEG
    using (RasterCodecs codecs = new RasterCodecs())
        codecs.Save(_image, @"FILE PATH TO OUTPUT IMAGE", RasterImageFormat.Jpeg, 0);
}
Also for your reference, we have this tutorial.
https://www.leadtools.com/help/sdk/v21/tutorials/dotnet-console-write-1d-and-2d-barcodes-to-an-image.html
+1
Srinivasan Ramamoorthi5y ago
There are 2 requirements in your request

First is generating QR code in ASP.NET
Second is sharing it in whatsapp

You may not get complete reference for this requirements

You can refer article https://www.c-sharpcorner.com/blogs/how-to-generate-qr-code-using-asp-net for rist point

and for second you can refer this one
https://www.twilio.com/docs/whatsapp/tutorial/send-and-receive-media-messages-whatsapp-csharp-aspnet
+1