These guides will take the user through account setup procedures for applications, accounts, etc. It will contain everything that is needed for working with the PayPal APIs.

This sample takes the user through crediting a simple credit card transaction using the PayPal SDKs.

These samples cover how to process a payment via PayPal, using the PayPal SDKs. These are simple request samples that outline the multi-step process for allowing this payment option.

These examples go through the process of creating a subscription / recurring payment system using PayPal.

The process for creating a subscription is to:

1. Create a billing plan. This is a reusable model that outlines the details of the subscription.
2. Activate the billing plan.
3. When you want to create a subscription for a user, you create a billing agreement using the ID of the billing plan that they should be subscribed to.
4. Once created, you redirect the user to PayPal to confirm the subscription. Once confirmed, the user is redirected back to the merchant's website.
5. Lastly, you execute the billing agreement to begin the subscription.

These samples cover working examples of how to use PayPal webhooks to provide event monitoring for your application and payments.

Samples related to processing payments on mobile devices