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Python library for implementing Omnikassa

Project description

Omnikassa

https://travis-ci.org/RobWouters/omnikassa.png?branch=master

Python library for implementing Omnikassa.

Generating payment request

from omnikassa import Omnikassa
from omnikassa.constants import Currency

settings = {
    'currencyCode': Currency.EURO,  # Default value, can be overriden per request
    'automaticResponseUrl': 'https://example.com/callback',
    'normalReturnUrl': 'https://example.com/omnikassa',
    'merchantId': '0123456789',
}
secret = 'secret key'  # set this to None to use test environment

omnikassa = Omnikassa(settings, secret)
data = omnikassa.generate_request({
    'transactionReference': 'transaction123',  # unique reference
    'amount': 456,  # in cents
    'orderId': 123,  # optional
})

data contains relevant info to create a form:

<form action="${url}" method="post" id="form">
    <input type="hidden" name="Seal" value="${seal}">
    <input type="hidden" name="InterfaceVersion" value="${version}">
    <input type="hidden" name="Data" value="${data}">
    <button type="submit">
        Start payment
    </button>
</form>

Handling return

from omnikassa import Omnikassa
from omnikassa.constants import Currency

settings = {
    'currencyCode': Currency.EURO,
    'automaticResponseUrl': 'https://example.com/callback',
    'normalReturnUrl': 'https://example.com/omnikassa',
    'merchantId': '0123456789',
}
secret = 'secret key'

omnikassa = Omnikassa(settings, secret)
try:
    data = omnikassa.verify_callback(request.POST)
except InvalidSeal:
    ...
except InvalidResponseCode as exc:
    # `exc.data` contains responseData
    ...

# `data` is a dict of validated omnikassa data

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