Easy PayPal Payment System v💳

Overview
A lightweight and easy-to-integrate PayPal payment system designed for developers who need secure and reliable payment handling with minimal setup.

All payments are fully verified using the PayPal API to ensure authenticity and prevent tampering.


Key Features

• Fully customizable payment flow
• Secure PayPal API verification
• Automatic payment logging
• Built-in debugging and error handling
• Tamper-proof transaction validation
• Supports donations and fixed payments

How It Works
1. Payment Generation
The system generates secure PayPal payment buttons based on your configuration.

These buttons are dynamically created and can be customized for different products or donation flows.

2. Payment Process
The user completes the payment via PayPal.
Payments can be configured as either:

• Fixed price purchases
• Donations

3. Verification
After payment, PayPal sends a notification (IPN / webhook) to your configured endpoint.

The system validates the transaction directly via the PayPal API before marking it as completed.

Any errors can trigger custom handlers such as:

• Admin notifications (email)
• Refund logic
• Logging for debugging

4. Processing
Once verified, the transaction ID is stored in a database to prevent replay attacks and duplicate processing.

Security
Every transaction is verified server-side through PayPal API checks, ensuring:

• No fake payments
• No client-side manipulation
• No duplicate transaction execution