custom-layer

Order flow in Open Event API Server follows very simple process. On successfully creating a order through API server the user receives the payment-url. API server out of the box provides support for two payment gateways, stripe and paypal. The process followed is very simple, on creating the order you will receive the payment-url. The frontend will complete the payment through that url and on completion it will hit the specific endpoint which will confirm the payment and update the order status. Getting the payment-url Payment Url will be sent on successfully creating the order. There are three type of payment-modes which can be provided to Order API on creating order. The three payment modes are “free”, “stripe” and “paypal”. To get the payment-url just send the payment mode as stripe or paypal. POST Payment After payment processing through frontend, the charges endpoint will be called so that payment verification can be done on the server end. POST /v1/orders/<identifier>/charge This endpoint receives the stripe token if the payment mode is stripe else no token is required to process payment for paypal. The response will have the order details on successful verification. Implementation The implementation of charging is based on the custom data layer in Orga Server. The custom layer overrides the Base data layer and provide the custom implementation to “create_object” method thus, not using Alchemy layer. def create_object(self, data, view_kwargs): order = Order.query.filter_by(id=view_kwargs['id']).first() if order.payment_mode == 'stripe': if data.get('stripe') is None: raise UnprocessableEntity({'source': ''}, "stripe token is missing") success, response = TicketingManager.charge_stripe_order_payment(order, data['stripe']) if not success: raise UnprocessableEntity({'source': 'stripe_token_id'}, response) elif order.payment_mode == 'paypal': success, response = TicketingManager.charge_paypal_order_payment(order) if not success: raise UnprocessableEntity({'source': ''}, response) return order With the resource class as class ChargeList(ResourceList): methods = ['POST', ] schema = ChargeSchema data_layer = { 'class': ChargesLayer, 'session': db.session } Resources Paypal Payments API https://developer.paypal.com/docs/api/payments/ Flask-json-api custom layer docs http://flask-rest-jsonapi.readthedocs.io/en/latest/data_layer.html#custom-data-layer Stripe Payments API https://stripe.com/docs/charges