Webhook

A webhook is an automated message sent from one application to another when a specific event occurs, using an HTTP request. Think of it as an “event-driven API” where the source application pushes data to a specific URL (the endpoint) of the destination application, rather than the destination application having to continuously “poll” or ask for updates. This allows for real-time communication and automation between different services, such as a code repository triggering a build or a payment processor notifying a CRM about a new customer.