icynet-auth-server/src/modules/utility/services/qr-code.service.ts

import { Injectable } from '@nestjs/common';
import * as QRCode from 'qrcode';

@Injectable()
export class QRCodeService {
  public async createQRDataURI(input: string): Promise<string> {
    return QRCode.toDataURL(input);
  }
}