01-checkout-webhooks.txt

Check results
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Code
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"""webhooks for stripe"""
# disabling pylint error that var name doesn't conform
# with snake_case naming convention
# pylint: disable=C0103
import stripe
from django.conf import settings
from django.http import HttpResponse
from django.views.decorators.http import require_POST
from django.views.decorators.csrf import csrf_exempt

from checkout.webhook_handler import StripeWHHandler


@require_POST
@csrf_exempt
def webhook(request):
    """Listen for webhooks from Stripe"""
    # Setup
    wh_secret = settings.STRIPE_WH_SECRET
    stripe.api_key = settings.STRIPE_SECRET_KEY

    # Get the webhook data and verify its signature
    payload = request.body
    sig_header = request.META['HTTP_STRIPE_SIGNATURE']
    event = None

    try:
        event = stripe.Webhook.construct_event(
                payload, sig_header, wh_secret
                )
    except ValueError:
        # Invalid payload
        return HttpResponse(status=400)
    except stripe.error.SignatureVerificationError:
        # Invalid signature
        return HttpResponse(status=400)
    except Exception as e:
        return HttpResponse(content=e, status=400)

    # Set up a webhook handler
    handler = StripeWHHandler(request)

    # Map webhook events to relevant handler functions
    event_map = {
        'payment_intent.succeeded': handler.handle_payment_intent_succeeded,
        'payment_intent.payment_failed': (
                                handler.handle_payment_intent_payment_failed),
    }

    # Get the webhook type from Stripe
    event_type = event['type']

    # If there's a handler for it, get it from the event map
    # Use the generic one by default
    event_handler = event_map.get(event_type, handler.handle_event)

    # Call the event handler with the event
    response = event_handler(event)
    return response