What is Webhook?
Web hook is a general concept for http based events, which
will provide remote event mechanisms.
Say for example, you have a built a custom application
separately which has some specific product related content. Whenever there is a
data change on the product repository, your data on the custom application
should also be updated. For this scenario, will you be keep on checking the
product repository for the changes? The answer should be No. Instead of your
application keep on poll the product for changes, product should notify or push
the changes to your application.
What is SharePoint Webhook?
Previously for working with event based processes, we were
using the server side event receivers and remote events receivers. Such
processes can be replaced with the webhooks.
