How can i scan a qr code and place an 3d object using ar core?

here i need some suggestion or a want to a way of doing this

scenario : i want to scan a qr code and after scanning the qr code i want place a 3d object in the ar scene . here i dont want to use google vision api and instead i want to use any qr reader package and want to place it. is there reference / url so that it will help me to achieve this ?

i used this package for qr scan https://github.com/zxing/zxing

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