# What Is a Webhook? ![rw-book-cover](https://www.redhat.com/profiles/rh/themes/redhatdotcom/img/red-hat-social-share.jpg) ## Metadata - Author: [[redhat.com]] - Full Title: What Is a Webhook? - Category: #articles - Summary: A webhook is a lightweight HTTP notification sent automatically when a specific event happens, so the server pushes data to a client without polling. Webhooks enable event-driven automation and GitOps by triggering infrastructure or deployment workflows from repository or monitoring events. They are quick to set up, secure with keys or mTLS/SSL, and best for small, real-time payloads. - URL: https://www.redhat.com/en/topics/automation/what-is-a-webhook ## Highlights - A webhook is a lightweight, event-driven communication that automatically sends data between applications via HTTP. ([View Highlight](https://read.readwise.io/read/01kb2m0q7xjw7z60f1fk041h1k))