Securing Azure Functions using Azure Active Directory

One of the most important Azure Services related to security is Azure Active Directory (Azure AD). Azure AD is a cloud-based identity and access management service that helps developers to authenticate end users before accessing Azure Functions HTTP triggers. Azure Functions provides an easy way to integrate Azure AD with HTTP triggers called EasyAuth.

Thanks to Azure App Service, from which the EasyAuth feature is inherited, we can integrate Azure function HTTP triggers with Azure AD without writing a single line of code.

Getting ready

In this recipe, to make things simple, let's use the default Active Directory that is created when we create an Azure account. In real-time production scenarios, however, we'd ideally have an existing Active Directory that needs to be integrated. I would recommend going over this article for more information: docs.microsoft.com/azure/active-directory-b2c/tutorial-web-app-dotnet...