Webhook
An automated HTTP callback that sends real-time data to other applications when specific events occur.
Definition
Webhooks enable event-driven integrations between applications. When configured events occur—a payment processes, a form submits, inventory changes—webhooks immediately notify subscribed systems.
Unlike polling where applications repeatedly check for changes, webhooks push updates instantly. This approach reduces latency and server load while enabling real-time workflows.
Why It Matters
Webhooks power modern application integrations and automations. Understanding webhook patterns helps teams build responsive, connected systems.
For marketing operations, webhooks enable instant responses to customer actions across platforms.
Examples in Practice
A Stripe webhook notifies your application immediately when a payment succeeds, triggering fulfillment. A CRM webhook alerts sales when prospects visit pricing pages.
Zapier and similar automation tools rely heavily on webhooks to connect thousands of applications without custom development.