I'm integrating paypal Checkout with server-side SDK. I'm trying to figure out how to handle errors and I can't get the answers to these questions:
1)In CreateOrder , after receiving the response from Paypal, I save the data in DB. If saving data gives an exception, the data will be inconsistent between what is in Paypal and what I have in DB. Is there any way to delete the created order, in Paypal? (This is because I'd thinking try to make the payment again, but as the order_id generated has associated the same invoice_Id, it will cause problems, right?). I've notice there is no "Delete" in Orders API, so how can I delete it?
2)If saving data in my DB gives an exception after CaptureOrder, I will have to ask for a refund for that capture_id to have the same information in DB and Paypal. After the refund is done, I'd like to make the payment again, can I used the same invoice_id?
Orders that have not been captured/completed cannot be deleted. Simply forget about them and do not capture them. The invoice_id can be used in other orders, since it only matters for completed orders.
Re-using an invoice ID after refunding an order likely will not work, since it is meant to prevent such duplicate payments. But that something you would need to test yourself.