A Webhook is a method for an application to send real-time data or notifications to another system automatically whenever a specific event occurs. Unlike APIs that require the receiver to poll for updates, webhooks push information instantly to a designated URL, enabling seamless integration between applications.
Key Features:
Event-Driven: Triggered automatically by specific actions (e.g., new user registration, payment received).
Real-Time Updates: Sends data immediately without the need for constant polling.
HTTP-Based: Uses standard web protocols (HTTP/HTTPS) to deliver data in formats like JSON or XML.
Integration-Friendly: Connects different applications, platforms, or services efficiently.
Common Uses:
-Sending notifications from a payment gateway when a transaction is completed.
-Triggering workflows in CRM or marketing automation platforms.
-Updating databases or dashboards in real-time.
-Sending alerts from monitoring or IoT systems.
Example:
When a user makes a purchase on an e-commerce site, a webhook can instantly notify the inventory system to update stock levels.
Difference from API:
Webhook: Pushes data automatically when an event occurs.
API: Requires the receiver to request (pull) data from the source.
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