afipcaeqrdecode 0.0.3

Package to decode and extract invoice metadata from an AFIP CAE qr code link

Github Link for PyPI | PyPI python package

AFIP invoice pdf qr CAE extract and decode

This is a python package that uses pyzbar to extract QR codes from PDF files and decodes them in order to automate extraction of relevant invoice metadata like:

• Invoice date
• CUIT of invoice creator
• AFIP electronic invoice point of sale (Punto de venta)
• Invoice number
• Amount
• Currency
• CUIT of inovoice recipient

And other less important properties.

Example Usage

Using the included sample files for demonstration (and ran from repository root using included sample file):

from afipcaeqrdecode import extract_images_from_pdf_afip_invoice_and_decode

invoice_metadata = extract_images_from_pdf_afip_invoice_and_decode('./tests/sample_files/2000005044986390.pdf')

Here, invoice metadata will evaluate to:

{
    "ver":1,
    "fecha":"2023-02-10",
    "cuit":30710145764,
    "ptoVta":4,
    "tipoCmp":1,
    "nroCmp":25399,
    "importe":2460,
    "moneda":"PES",
    "ctz":1,
    "tipoDocRec":80,
    "nroDocRec":30717336905,
    "tipoCodAut":"E",
    "codAut":73064176949471
}

System Dependencies and their installation

This package depends on pyzbar, which in turn depends on the open source ZBar library

Check your OS documentation on what package to install to get ZBar working with pyzbar.

On Linux (Ubuntu 22.04):

sudo apt-get install libzbar0

On Mac OS X:

brew install zbar

Installation using pip

After installing system dependencies, you can install using the PyPI python package

pip install afipcaeqrdecode

How does it work

It scans every image of the PDF invoice and then matches it with the format of the URL link that an AFIP CAE QR typically returns, if it matches it decodes it using jwt.utils.base64url_decode

WARNING

This is an experimental package, DO NOT USE IT IN PRODUCTION.

It is barely even tested, i'm sharing it so I can actually import it as a PyPI package in another project that consumes it.

Credits

Facundo Mainere for helping with JWT decode Author: Emiliano Mesquita

License

GNU GPLv3