Serverless architecture evolves cloud platforms toward pure cloud-native code by abstracting code from the infrastructure that it needs to run. Azure Functions is a serverless compute option that supports functions, small pieces of code that do single things.
This page gathers a lot of resources to start with Azure Serverless
Source: Image classification on Azure
You’ll find a lot of servless architecture here: Serverless Functions reference architectures
This section lists a lot of resources to start with Azure Serverless