I would like tp create an addin for Sharepoint online which uses c# code and libraries. I am following the tutorial mentioned in: https://docs.microsoft.com/en-us/sharepoint/dev/sp-add-ins/get-started-creating-sharepoint-hosted-sh...
I have deployed the addin created from default template in Visual Studio 2019, and now I wish to include and execute a C# file for generating an access token from this framework.
I am confused how to call this file from .aspx page and make it work on the sharepoint addin page. Please help.