How to generate raast payment dynamic qr code?

Question

I am developing a billing system where I need to generate a Raast payment QR code that includes a dynamic price and bill ID. The goal is for users to scan the QR code, pay the specified amount, and for me to track which bill has been paid.

I am looking for the best approach to generate and encode this data into a QR code while ensuring it follows the Raast payment format. Additionally, I need to extract the bill ID from the payment confirmation to mark it as paid in my system. What is the recommended way to achieve this using Raast payment standards in a web-based application?

Any guidance or example implementations would be greatly appreciated!

I tried to generate qr cide on standard but i failed to meet the format as i did not know about the format