django-paddle

Django models and helpers for integrating Paddle.com subscriptions with your Django app

_{⚠️This library is very much WORK IN PROGRESS, please read this document carefully to understand what is currently supported.}

Currently this package includes:

• Django Models for plans, plan prices, subscriptions, payments (invoices)
• Django management commands for sycing plans, subscriptions, payments
• Webhook receivers that handle subscription creation, subscription cancellation

Installation

Requires:

• Python 3.6+
• Django 2.1.0+

1. Install the django-paddle package

pip install django-paddle

2. Add django_paddle to your INSTALLED_APPS

INSTALLED_APPS = [
        # ...
        'django_paddle',
        # ...
]

3. In your settings.py add the following settings:

PADDLE_VENDOR_ID = 'your-vendor-id-here'  # https://vendors.paddle.com/authentication
PADDLE_AUTH_CODE = 'your-auth-code-here'  # https://vendors.paddle.com/authentication
PADDLE_PUBLIC_KEY = """-----BEGIN PUBLIC KEY-----
your
public
key
here
-----END PUBLIC KEY-----"""  # https://vendors.paddle.com/public-key
PADDLE_ACCOUNT_MODEL = 'auth.User'

_{ℹ️ If you are using the default Django User model, set PADDLE_ACCOUNT_MODEL to auth.User. If you are using a custom User model set this to something like your_custom_app.YourUserModel.}

5. In your projects main urls.py add the django_paddle URLs for receiving webhooks:

urlpatterns = [
    path('', include('django_paddle.urls')),
]

_{ℹ️ This will result in an absolute webhook URL https://example.com/webhook. Make sure this is the Webhook URL you set in your Paddle settings (https://vendors.paddle.com/alerts-webhooks).}

4. Run migrations

python manage.py migrate

The User Model specified in PADDLE_ACCOUNT_MODEL will now have a back-reference to the PaddleSubscription and vice versa.

Example:

sub = PaddleSubscription.objects.all()[0]
print(sub.account)  # <User: johndoe@example.com>

or

user = User.objects.get(username='johndoe@example.com')
print(u.subscriptions.all())  # <QuerySet [<PaddleSubscription: PaddleSubscription object (123456)>]>

5. Done!

Automatically connecting Users and Subscriptions

We need a shared identifier between the User model and the PaddleSubscription model. This needs to be provided when we redirect a user to the Paddle checkout. If you are using the default Django User model you can provide a unique user ID as a passthrough value. The subscription_created webook will check the passtrough field and see if a User with this ID exists and automatically connect it to the newly created subscription.

Example:

<script src="https://cdn.paddle.com/paddle/paddle.js"></script>
<script>
  Paddle.Setup({ vendor: your-vendor-id-here });
  var uid = "{{ request.user.id }}";  
  Paddle.Checkout.open({
    product: 'your-plan-id-here',
    passthrough: uid
  });
</script>

Django Management Commands

• manage.py paddle_sync_plans - Syncs Subscription Plans
• manage.py paddle_sync_subscriptions - Syncs Subscriptions
• manage.py paddle_sync_payments - Syncs payments for all subscriptions

Run tests

python runtests.py