concept

HTTP Callbacks

HTTP callbacks are a web development pattern where a server sends an HTTP request to a client-specified URL (the callback URL) to notify it of an event or deliver data asynchronously. This enables real-time or event-driven communication, often used in webhooks, APIs, and asynchronous processing systems. It allows applications to react to changes without continuous polling, improving efficiency and responsiveness.

Also known as: Webhooks, Callback URLs, HTTP Webhooks, Push Notifications, Event Callbacks

🧊Why learn HTTP Callbacks?

Developers should learn HTTP callbacks for building event-driven architectures, such as integrating third-party services (e.g., payment gateways, messaging apps) that send notifications, or implementing webhooks in APIs to push updates to clients. They are essential in scenarios requiring asynchronous communication, like handling long-running tasks, monitoring system events, or enabling real-time data synchronization between distributed systems.