WebHooks are HTTP callbacks and work on a Publisher/Subscriber model. We register a WebHook which is a URL of our Web API on any notification service, such as VSTS, DropBox, GitHub, PayPal, Salesforce, Slack, Trello, Wordpress, and many more. Once an event occurs as per the configuration, it will make an HTTP POST request to our Web API (URL specified during the WebHook registration), and send us the data. On the other hand, we can also use the WebHook pattern in our Web API project to push the HTTP POST callback to the subscribers registered on our application.

Any WebJob hosted on Azure provides a WebHook link, which can be used by any third-party application to trigger.