def pay_with_stripe()

in functions/pay_with_stripe/main.py [0:0]

• 37 lines of code
• 3 McCabe index (conditional complexity)

def pay_with_stripe(data, context):
    tracer = Tracer(exporter=sde)

    if 'data' in data:
        payment_request_json = base64.b64decode(data.get('data')).decode()
        payment_request = json.loads(payment_request_json)
        token = payment_request.get('event_context').get('token')
        order_id = payment_request.get('event_context').get('order_id')
        trace_id = payment_request.get('event_context').get('trace_id')
        tracer.span_context.trace_id = trace_id

        with tracer.span(name="process_payment"):
            order_data = firestore.collection('orders').document(order_id).get().to_dict()
            amount = order_data.get('amount')
            email = order_data.get('shipping').get('email')

            try:
                charge = stripe.Charge.create(
                    # For US Dollars, Stripe use Cent as the unit
                    amount=int(amount * 100),
                    currency='usd',
                    description='Example charge',
                    source=token
                )
                order_data['status'] = 'payment_processed'
                event_type = 'payment_processed'
                
            except stripe.error.StripeError as err:
                print(err)
                order_data['status'] = 'payment_failed'
                event_type = 'payment_failed'
            
            firestore.collection('orders').document(order_id).set(order_data)
            stream_event(
                topic_name=PUBSUB_TOPIC_PAYMENT_COMPLETION,
                event_type=event_type,
                event_context={
                    'order_id': order_id,
                    'email': email,
                    'order': order_data
                }
            )

    return ''