Build Microsoft Teams apps with Microsoft Graph

This tutorial teaches you how to build a Microsoft Teams app using ASP.NET Core and the Microsoft Graph API to retrieve calendar information for a user.


If you prefer to just download the completed tutorial, you can download or clone the GitHub repository. See the README file in the demo folder for instructions on configuring the app with an app ID and secret.


Before you start this tutorial, you should have the following installed on your development machine.

You should also have either a personal Microsoft account with a mailbox on, or a Microsoft work or school account. If you don't have a Microsoft account, there are a couple of options to get a free account:


This tutorial was written with .NET Core SDK version 3.1.402. The steps in this guide may work with other versions, but that has not been tested.


Please provide any feedback on this tutorial in the GitHub repository.