Webhooks - PayPal Developer The PayPal REST APIs use webhooks for event notification Webhooks are HTTP callbacks that receive notification messages for events After you configure a webhook listener for your app, you can create a webhook, which subscribes the webhook listener for your app to events The notifications namespace contains resource collections for webhooks
Search - PayPal Developer The order ID of the transaction On PayPal transactions, this field maps to the PayPal invoice number PayPal invoice numbers are unique in your PayPal business account Maximum 255 characters or 127 for PayPal transactions
Get an access token - PayPal Developer Your access token authorizes you to use the PayPal REST API server To call a REST API in your integration, exchange your client ID and secret for an access token in an OAuth 2 0 token call
Online Payment Service | Amazon Pay Amazon Pay is an online payment service that makes checkout on your site fast and secure for hundreds of millions of Amazon customers around the world
Transaction Search - PayPal Developer The PayPal payer ID, which is a masked version of the PayPal account number intended for use with third parties The account number is reversibly encrypted and a proprietary variant of Base32 is used to encode the result