Webhook

A webhook is an HTTP callback that automatically sends data from one application to another when a specific event occurs. Unlike [APIs](/glossary/api) where you poll for updates, webhooks push data in real time as events happen. The receiving application listens at a specified URL endpoint and processes the incoming data immediately upon arrival. Webhooks follow a publisher-subscriber model — the source application (publisher) fires an HTTP POST request to a pre-registered URL whenever a triggering event takes place, and the subscriber processes the payload without ever needing to ask for it.

Webhooks eliminate the need for manual data transfers or constant polling between systems. For digital publishers, this means captured leads, sales transactions, and viewer activity can flow automatically into CRMs, email platforms, or internal databases the moment they happen. This reduces delays from minutes or hours to milliseconds, eliminates manual export-import work, and ensures your business systems always have current data. Without webhooks, teams either check dashboards manually or build scheduled batch processes that run behind real-time events.

FlipLink's [automation and integrations](/features/automation-and-integrations) feature supports webhooks that fire when key events occur. You can configure webhook endpoints to receive data when a new lead is captured, a document is viewed, or a sale is completed through Stripe. Each webhook sends a structured JSON payload containing the event details to your specified URL. This lets you connect FlipLink to virtually any system, including tools like Zapier, Make, or custom backends. Combined with the [Google Sheets integration](/features/automation-and-integrations), webhooks give publishers a flexible way to automate their entire publication workflow without writing code.