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qrcode_generator.py
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qrcode_generator.py
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import hashlib
import segno
from datetime import datetime
IMG_OUTPUT_PATH = 'static/qrcodes/'
def generate_qrcode_image(content, err_lvl):
"""
Generates the scannable visual output.
Parameters
----------
content: str
Content to be accessed through QR code
err_lvl: str
Desired error correction level
Returns
-------
A QR code image
"""
return segno.make(content, error=err_lvl)
def create_qrcode(content, error='H'):
"""
Embeds content into a QR code.
Parameters
----------
content: str
Content to be embedded into QR code
error: str
QR code error correction level (default: high)
Returns
-------
Functional QR code
"""
filename = IMG_OUTPUT_PATH \
+ hashlib.sha256(
f'{content}_{datetime.now()}'.encode('utf-8')).hexdigest()
qr = generate_qrcode_image(content, error)
for ext in ['.svg', '.png']:
qr.save(
filename + ext,
scale=200,
border=1,
light='white',
dark='black')
return filename