To get started, follow this tutorial. To create and process an order, you can use the following steps:
Creating a PayPal Order indicates that the buyer has consented to the purchase but does not place the funds on hold. After creating the Order, you can capture the order directly without any additional authorization, or you can create an authorization API call to place funds on hold until you are ready to capture. Since the order does not place funds on hold, it is advised that you follow the second approach and create an authorization instead of capturing an Order directly.
This technique is often used by merchants who accept orders for varying items, some of which may not be available for shipment at the time the order is placed (for example: a website that allows customers to buy multiple items from different retailers with different shipping dates, managing the retailer billing as each item ships). Subsequent basic authorizations are made as the items become available. These authorizations ensure that the customer still has the funds available to purchase each item. You can make up to 10 basic authorizations for each Order.
An order is valid for 29 days. Within this period, you can request one or many authorizations to ensure the availably of funds. The sum of the total open authorizations can’t exceed 115% or $75 (whichever is less) of the amount provided to PayPal when the order was created.
To Infinity and Beyond!
Payments have always been very exciting to us and we look forward to see what cool applications you build with these new REST APIs.
As always your feedback is welcome and we look forward to find ways to improve and serve you better.