August 20, 2025

Setup: Add this url in Remote Site Setting

url: https://quickchart.io/

public class QRCodeController {
    public static void createQR(){
        try{
            Account acc=[SELECT Id,Name FROM Account LIMIT 1];
            
            String endpoint = 'https://quickchart.io/chart?cht=qr&chs=300x300&chl=' +EncodingUtil.urlEncode(acc.Name, 'UTF-8');
            HttpRequest request = new HttpRequest();
            request.setEndpoint(endpoint);
            request.setMethod('GET');
            Http http=new Http();
            HttpResponse response = http.send(request);
            
            if (response.getStatusCode() == 200) {
                Blob qrImage = response.getBodyAsBlob();
                
                ContentVersion cv=new ContentVersion(
                    Title = 'QR Code for ' + acc.Name,
                    PathOnClient = acc.Name + '_QRCode.jpg',
                    VersionData = qrImage,
                    FirstPublishLocationId = acc.Id
                );
                insert cv;
            }
        }
        catch(Exception e){
            System.debug('Error in QRCodeController::'+e.getMessage());
        }      
    }  
}

Output:

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