Building a payment integration with PayPal requires handling webhooks to receive real-time notifications about transactions, disputes, subscriptions, and other payment events. However, testing webhooks during local development presents a significant challenge: PayPal needs to send HTTP requests to your server, which means your localhost isn’t directly reachable. In this guide, you’ll learn how to set up and test PayPal webhooks locally using Pinggy, a simple tunneling tool that exposes your local server to the internet with just one command.