Product : Microsoft Corp, Azure Stack/1903, IaaS + PaaS
Feature : Serverless, Compute, Platform Services
Content Owner:  Bhagyashri (Shri) Bhagvat
Summary
App Service (available in PaaS offering) provides Azure Functions which executes event-driven serverless workloads
Details
https://docs.microsoft.com/en-us/azure/azure-stack/azure-stack-app-service-overview