I am new to the concept of web apps deployed in Azure and related authentications.

I have an R Shiny app, hosted as an app service in Azure cloud using Docker containers. I have few Azure user groups that I have created as well. Now, I have enabled the Azure active directory authentication on my web app by connecting the Azure user groups to the app service by assigning different roles to them.

One of the logic in my R shiny app requires username/email/user group of the user, who is authenticating using AAD Single Sign On. Is there a way to grab the user information in R using any R libraries or R code ?

Any inputs in this regard would be very helpful.