Adding Ecommerce to Your Internet Application
Learn how to plug in that last piece of your web app puzzle. Hook in a payment system and start taking orders online.
You already know the benefits of having the PayPal Developer Certification — we’ll show you how to get there.
In this article, we’ll cover PayPal’s Direct Payment API, Express Checkout, the prerequisites for certification, and much more.
The Direct Payment API offers direct, credit-card payment processing through PayPal. For
credit-card transactions, customers can stay on the merchantâ€™s website as PayPal processes the
payment in the background.
For each payment, the Direct Payment API takes as input the billing address, transaction
amount, credit card information, and item information. Within seconds, the API returns a
confirmation that the transaction was processed. Also, the Direct Payment API lets merchants
flag potentially fraudulent transactions, and it provides industry-standard AVS and CVV2
responses for each transaction.
By integrating Direct Payment API with Express Checkout as part of the Website Payments
Pro solution, merchants can accept all major payment types, including PayPal, while working
with a single provider that processes and manages all online payments.