Do you have an Azure Function that you want to upgrade from v2 to v3? Don't panic, it's just a matter of few steps!
Azure Functions are one of the best examples of serverless applications. By default you can't use Dependency injection: here's how you can configure it by adding the Startup class.
Maybe you are used to ping a service to check whether it responds or not. It works well using a local console, but within the Azure portal you must use another command: tcpping.