Follow-up: Executing SharePoint Online REST API without User Interaction

This article is a repost of an entry originally posted on Hatena Blog on May 25, 2016.

This is a continuation of my previous article.

https://zenn.dev/karamem0/articles/2016_05_19_080000

During a session at de:code 2016, Mr. Tsuyoshi Matsuzaki from Microsoft Japan mentioned that it is possible to obtain an access token without user interaction by using a certificate. After doing some research, I found the corresponding article.

https://tsmatz.wordpress.com/2015/04/09/azure-ad-backend-server-side-deamon-service

I have confirmed that I can obtain an access token by following the steps described in the article. Please note that this method operates with the permissions of the application itself, rather than those of a specific user.