Bar Code Scanner

Has any one ever created custom QR codes in Ionic? I am working on an online Portal App where I use QR codes kinda like SnapChat codes or Messenger scan codes to link my inventory. Have not found any instance of anyone creating QR Custom Codes or a functional QR code Scanner. Any help please!

I’m using the barcode scanner from ionic-native. Nothing custom, but it works very well. As far as custom, what do you mean? Returning info in a specific format? design?