What is a webhook?

A webhook is a way for applications to communicate with each other in real-time when a certain event occurs. It allows for apps and software to interact with each other, notifying of changes that affect the other app and enabling the user to be notified of those changes through their mobile device or laptop.

For example, if you have an e-commerce website and you want to receive a notification when a customer places an order, you could set up a webhook so that your website receives an HTTP request whenever an order is placed. This allows your website to be notified immediately when the order is placed, without having to constantly check for new orders.

Webhooks are often used in web applications to automate workflows and trigger actions based on events that occur in other systems. They are commonly used in the context of APIs, allowing developers to receive real-time notifications of updates or changes to data.