Pay Pal Integration

• Pay Pal NVP API
• Pay Pal Website Payments Pro Home
• Sandbox
• Post on what you need to do

Java Security

• Java 5 Security Guides

Notes on Paypal

Paypal documentation isn't that great. In order to use the sandbox, you need to create a test seller account at the sandbox. After creating the account, I enabled "test mode" (not sure if this is necessary). I thought I needed to click on "Enter Sandbox Test Site" to create the sandbox API credentials, but that was an error-laden dead end. They already created them (just click on the API Credentials tab in the sandbox).