To see Microsoft Identity Web in action, or to learn how to sign-in users with a web app and call a protected web API, use this incremental tutorial on ASP .NET Core web apps which signs-in users (including in your org, many orgs, orgs + personal accounts, sovereign clouds) and calls web APIs (including Microsoft Graph), while leveraging Microsoft Identity Web. See the incremental tutorial.

• Web app which signs in users
• Web app which signs in users and calls Graph
• Web app which signs in users and calls multiple web APIs
• See the incremental tutorial for even more samples, including B2C.
• Azure Storage sample. See in particular the controller, as well as the TokenAcquisitionTokenCredential class which adapts a ITokenAcquisition to an Azure SDK TokenCredential.
• Microsoft Graph Web hooks sample (for ASP.NET Core)

If you are interested in web APIs, see Web-API-Samples