Community CMS Practice Test

A webhook is an HTTP callback that the CMS fires when certain events happen, so external systems get notified in real time. You configure a target URL and choose which events to trigger on (like a post being published, updated, or deleted; a new comment; or a user action). When that event occurs, the CMS sends an HTTP request (usually a POST) to the specified URL with a payload describing the event, often in JSON. The receiving system then processes the data and can take automated actions, such as updating an external database or search index, triggering a build in a CI/CD pipeline, posting a message to a chat channel, or starting another workflow. Including a secret or signature helps the receiving system verify the request’s authenticity, and using HTTPS protects the data in transit. The payload typically includes details like what resource changed, its ID, timestamps, and the new state, enabling downstream systems to react appropriately. This isn’t a user notification center (that would internal messages to users), nor a scheduling tool for posts, nor a database backup method. Instead, it provides real-time, event-driven communication from the CMS to other services, enabling seamless integrations and automated workflows.