django-zatca

ZATCA (Fatoora) e-invoicing integration for Django — Saudi Arabia VAT e-invoicing

معالجة الفوترة الإلكترونية وفق متطلبات هيئة الزكاة والضريبة والجمارك (زاتكا) - نظام فاتورة

Features

• Phase 1 — Simplified e-invoicing (QR code generation with TLV encoding)
• Phase 2 — Full e-invoicing (EC key pair & CSR generation, XML signing, compliance/certificate issuance, clearance & reporting)
• Pure Python SVG QR — No external QR library required; built-in pure-Python QR generator
• Django models — ZatcaCertificate and ZatcaInvoiceLog for audit trail
• Management commands — zatca_onboard, zatca_sync, zatca_check
• REST API endpoints — /zatca/status, /zatca/onboard, /zatca/invoice/sync
• Signals — invoice_cleared, invoice_reported, invoice_failed for extensibility

Requirements

• Python 3.7+
• Django 2.2+

Quick Start

1. Install

pip install django-zatca

2. Add to INSTALLED_APPS

INSTALLED_APPS = [
    ...
    "django_zatca",
]

3. Configure

Add ZATCA to your Django settings:

ZATCA = {
    "PHASE": "both",                  # "phase1", "phase2", or "both"
    "ENVIRONMENT": "sandbox",         # "sandbox" or "production"
    "EGS_UUID": "your-egs-uuid",
    "VAT_NUMBER": "311111111100003",
    "VAT_NAME": "Your Company Name",
    "CITY": "Riyadh",
    "CITY_SUBDIVISION": "Al Olaya",
    "STREET": "King Fahd Road",
    "BUILDING": "1234",
    "PLOT_IDENTIFICATION": "5678",
    "POSTAL_ZONE": "12345",
    "BRANCH_NAME": "Main Branch",
    "BRANCH_INDUSTRY": "Retail",
    "CRN_NUMBER": "CRN12345",
    "CERTIFICATE": "",                # base64-encoded compliance certificate
    "PRIVATE_KEY": "",                # base64-encoded EC private key
    "SECRET": "",                     # secret from ZATCA
    "QUEUE_CONNECTION": "sync",
    "QUEUE_NAME": "zatca",
    "LOGGING_ENABLED": True,
    "LOG_CHANNEL": "zatca",
    "API_SANDBOX_BASE": "https://gw-fatoora.zatca.gov.sa/e-invoicing/developer-portal",
    "API_PRODUCTION_BASE": "https://gw-fatoora.zatca.gov.sa/e-invoicing/core",
}

Or use environment variables with prefix ZATCA_:

export ZATCA_PHASE=both
export ZATCA_ENVIRONMENT=sandbox
export ZATCA_VAT_NUMBER=311111111100003

4. Run migrations

python manage.py migrate django_zatca

5. Generate QR code

from django_zatca.services.qr_code import generate_phase1_qr
from django_zatca.services.svg_qr import SvgQrGenerator

tlv = generate_phase1_qr("Company Name", "311111111100003", "2024-01-15T14:30:00Z", "115.00", "15.00")
svg = SvgQrGenerator().encode(tlv, size=200)
# save svg bytes to file or return as HTTP response

6. Onboard (Phase 2)

python manage.py zatca_onboard --otp=123456 --save

7. Submit invoices

from django_zatca.tasks import sync_invoice_to_zatca

sync_invoice_to_zatca(
    invoice_data={
        "invoice_serial_number": "SER001",
        "invoice_counter_number": 1,
        "issue_date": "2024-01-15",
        "issue_time": "14:30:00",
        "currency": "SAR",
        "previous_invoice_hash": "",
        "invoice_type": "INVOICE",
        "line_items": [
            {"id": "1", "name": "Item", "quantity": "1", "tax_exclusive_price": "100.00", "vat_percent": "0.15"},
        ],
    },
    egs_unit=egs_config,
    certificate=certificate,
    private_key=private_key,
    secret=secret,
)

API Endpoints

Include the URLs in your project:

from django.urls import include, path

urlpatterns = [
    path("api/", include("django_zatca.urls")),
]

Management Commands

Signals

from django_zatca.signals import invoice_cleared, invoice_reported, invoice_failed

@receiver(invoice_cleared)
def on_invoice_cleared(sender, invoice_data, result, **kwargs):
    # update your local db status
    pass

Development

git clone https://github.com/aghfatehi/django-zatca.git
cd django-zatca
pip install -e .
pip install -r requirements-dev.txt
pytest

License

MIT