ATOL

Application for integrating Django and https://online.atol.ru/

Important limitations:

• Python 3.5+
• Support Django 1.11+
• PostgreSQL ≥ 9.4 (JSONB field) (PostgreSQL ≥ 11 for Django 4.0)
• only 1 purchase is supported in receipt (1 product)
• only v3 protocol version is supported

Quick start

1. Add atol to your INSTALLED_APPS setting like this:

   INSTALLED_APPS = [
       ...
       'atol',
   ]
   

2. Add atol settings like this:

   RECEIPTS_ATOL_LOGIN = 'login'
   RECEIPTS_ATOL_PASSWORD = 'secret'
   RECEIPTS_ATOL_GROUP_CODE = 'ATOL-ProdTest-1'
   RECEIPTS_ATOL_TAX_NAME = 'vat18'
   RECEIPTS_ATOL_TAX_SYSTEM = 'osn'
   RECEIPTS_ATOL_INN = '112233445573'
   RECEIPTS_ATOL_PAYMENT_METHOD = 'full_payment'
   RECEIPTS_ATOL_PAYMENT_OBJECT = 'service'
   RECEIPTS_ATOL_CALLBACK_URL = None
   RECEIPTS_ATOL_PAYMENT_ADDRESS = 'www.<your_company>.ru'
   RECEIPTS_ATOL_COMPANY_EMAIL = '<your_company>@gmail.com'
   RECEIPTS_OFD_URL_TEMPLATE = u'https://lk.platformaofd.ru/web/noauth/cheque?fn={fn}&fp={fp}'
   

3. Add celery-beat tasks to CELERYBEAT_SCHEDULE settings like this:

   CELERYBEAT_SCHEDULE = {
       ...
       'atol_retry_created_receipts': {
           'task': 'atol_retry_created_receipts',
           'schedule': crontab(minute=25)
       },
       'atol_retry_initiated_receipts': {
           'task': 'atol_retry_initiated_receipts',
           'schedule': crontab(minute=35)
       }
   }
   

4. Include the atol URLconf in your project urls.py like this:

   from atol.views import ReceiptView
   
   url(r'^r/(?P<short_uuid>[\w]+)/$', ReceiptView.as_view(), name='receipt')
   

5. Run python manage.py migrate atol to create the receipt model.

6. Add receipt field to your payment model:

   from atol.models import Receipt
   
   receipt = models.OneToOneField(Receipt, verbose_name=_('Чек'), blank=True, null=True, on_delete=models.SET_NULL)
   

7. Add the mechanics of calling a receipt creation after a successful payment. For example, this can be done through a signal that will be called upon successful payment:

   # <your_app>/signals.py
   
   payment_accepted = Signal(providing_args=['payment'])
   
   # <your_app>/providers/googleplay.py
   
   def process_payment(payment)
   
       ...
   
       payment_accepted.send(sender='google-play', payment=payment)
   
   # <your_app>/receivers.py
   
   @receiver(payment_accepted)
   @transaction.atomic
   def init_payment_receipt(sender, payment, **kwargs):
   
       ...
   
       receipt = Receipt.objects.create(
           user_email=payment.user.email,
           purchase_price=payment.amount
       )
       payment.receipt = receipt
       payment.save(update_fields=['receipt'])
       transaction.on_commit(
           lambda: atol_create_receipt.apply_async(args=(receipt.id,), fallback_sync=True)
       )
   

Run tests

pytest