Registering an application with the Microsoft identity platform

In the previous section, we covered the differences between the application object and the service principal. We are now going to put this theory into practice and actually register an application inside the Azure AD tenant. For this, we are going to use the Azure AD tenant that we created in the previous chapter.

We are going to register an application using the Azure portal, PowerShell, and the CLI. We will start by registering an app in the Azure portal.

Registering an application using the Azure portal

To register an application using the Azure portal, we have to take the following steps:

1. Open a web browser and navigate to https://portal.azure.com.
2. If you have multiple tenants, use the Directory + subscription filter in the top-right menu to select the tenant where you want to register the application.
3. On the Overview page of Azure, select Azure Active Directory, as shown in Figure 2.1, or...