Azure EventGrid has first class support for Azure Functions
[https://docs.microsoft.com/en-us/azure/azure-functions/functions-bindings-event-grid]
, Azure Logic Apps [https://azure.microsoft.com/en-in/services/logic-apps/], and
Azure Automation
[https://docs.microsoft.com/en-us/azure/event-grid/ensure-tags-exists-on-new-virtual-machines]
. However, writing your own webhook in ASP.NET Core is a piece