A reusable Django app to include a PayPal payment flow to your site.
A Django application to integrate PayPal in your Django driven site.
Currently it only features a simple express checkout implementation for one item or to allow a user to raise his account balance.
So if you e.g. have yearly payment for an account or only one item on sale, this app is capable of doing the PayPal express checkout handling for you.
Check the “Installation” section on what you are yet able to set up.
You need to install the following prerequisites in order to use this app:
pip install Django
If you want to install the latest stable release from PyPi:
$ pip install django-paypal-express-checkout
If you feel adventurous and want to install the latest commit from GitHub:
$ pip install -e git://github.com/bitmazk/django-paypal-express-checkout.git#egg=paypal_express_checkout
Add paypal_express_checkout to your INSTALLED_APPS:
INSTALLED_APPS = ( ..., 'paypal_express_checkout', )
Hook this app into your urls.py:
urlpatterns = patterns('', ... url(r'^checkout/', include('paypal_express_checkout.urls')), )
Add your hostname to the following settting:
HOSTNAME = 'http://example.com' # without trailing slash
In case you want to test your checkout view in the browser locally, you need to install something like localtunnel and set your hostname to your localtunnel url:
HOSTNAME = 'http://XXXX.localtunnel.me'
For testing and development you might want to set the PayPal URLs to the sandbox ones in your local_settings.py:
PAYPAL_API_URL = 'https://api-3t.sandbox.paypal.com/nvp' PAYPAL_LOGIN_URL = ( 'https://www.sandbox.paypal.com/cgi-bin/webscr?cmd=_express-checkout&token=' )
The following setting will be the description of all payments that are displayed when the user logs into his PayPal account for checkout:
SALE_DESCRIPTION = 'Your payment to Foobar Inc.'
This is not the description of an Item!
Finally you need to set the following settings to the user, password and signature PayPal will provide you with:
PAYPAL_USER = 'username_merchant_api1.gmail.com' PAYPAL_PWD = 'your api password' PAYPAL_SIGNATURE = 'your api signature'
Don’t forget to run the South migrations:
./manage.py migrate paypal_express_checkout
If you want to allow anonymous checkout set the PAYPAL_ALLOW_ANONYMOUS_CHECKOUT to True::
PAYPAL_ALLOW_ANONYMOUS_CHECKOUT = True # Defaults to False
First you should add an Item to your project. They can be easily added and updated via the Django admin. There you set Item.name as the display name of your item, Item.description for a further description and Item.value for the price of this item. Your customer will then be able to chose between the items you provide and set a quantity for how much he wants to buy.
Overriding the form
If you seek for a more complex solution, at this point we provide the SetExpressCheckoutFormMixin to allow you to customize the form that is used to process the checkout procedure. The minimum implementation should include:
class MyForm(SetExpressCheckoutFormMixin): def get_items_and_quantities(self): item = Item.objects.get(pk=1) quantity = 1 return [(item, quantity), ]
Have a look at our paypal_express_checkout.forms.SetExpressCheckoutForm example implementation for a better understanding.
Further we supply a simpe settings hook to tell the app, what new form to use. Just set PAYPAL_SET_CHECKOUT_FORM to the correct form class like so::
PAYPAL_SET_CHECKOUT_FORM = 'myproject.forms.MyForm'
Each payment is logged in our provided PaymentTransaction model. It can also easily be accessed via Django admin and will provide you with information to identify every payment in every status.
Occasionally there might be an error during the payment process, that the will be logged in the PaymentTransactionError model. It stores information about exceptions or errorous PayPal responses that occur during a payment.
If you want to contribute to this project, please perform the following steps:
# Fork this repository # Clone your fork $ mkvirtualenv -p python2.7 django-paypal_express_checkout $ pip install -r requirements.txt $ ./logger/tests/runtests.sh # You should get no failing tests $ git co -b feature_branch master # Implement your feature and tests # Describe your change in the CHANGELOG.txt $ git add . && git commit $ git push origin feature_branch # Send us a pull request for your feature branch
Whenever you run the tests a coverage output will be generated in tests/coverage/index.html. When adding new features, please make sure that you keep the coverage at 100%.
Updating from v1.2 and below
v1.3 of this app has updated the factory_boy requirements to >2.0.0 factory_boy though has a dependency for setuptools>=0.8, which you need to install before upgrading your virtual environment. Otherwise running pip install --upgrade -r requirements.txt will fail.
Check the issue tracker on github for milestones and features to come.
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