Webhooks

Webhooks are automated HTTP callbacks triggered by specific events in one application to send real-time data or updates to another system. Unlike APIs, which require frequent polling for data, webhooks provide a push-based communication model, ensuring efficiency and timeliness.

When an event occurs—such as a payment confirmation, new user registration, or form submission—the webhook URL registered by the receiving application is invoked. This URL receives a payload (usually in JSON format) containing relevant data about the event. Webhooks simplify integration by enabling applications to respond to real-time events without constantly checking for updates.

Key use cases for webhooks include integrating payment gateways (e.g., Stripe), updating CRM systems, triggering CI/CD pipelines in DevOps, and connecting marketing automation tools. They are lightweight, cost-efficient, and widely used in modern web and mobile applications to create seamless workflows across systems.

Despite their advantages, webhooks require secure implementations. Best practices include validating payload signatures, using HTTPS for encrypted communication, and setting retry mechanisms for failed deliveries.