How to read QR code via web app?

Question

Django

There is a web application written in python and django. How to use them to read a QR code image through a camera (smartphone, computer) and decrypt it?

Answer 1

It will be necessary to develop a mobile application or javascript code that will take a picture through the camera and send it to the server. And on the server in python code, you can use a library like pyzbar to decrypt:

from PIL import Image
from pyzbar.pyzbar import decode

img = Image.open('path/to/image.png')
for qr in decode(img):
    data = qr.data
    ...