Hello Rune,
Greetings!
Thank you for posting your query here. With regards to your query, hope that you want your Office 365 apps get authenticate by OpenID Connect.
OpenID Connect and
OAuth 2.0 support in Azure Active Directory. While OAuth requests an auth code, OpenID Connect requests an identity token. This token enables single sign-on and other elements of the sign-on flow, such as matching
identity claims with user profile information.
Office 365 API Tools for Visual Studio provides all you need to enable single sign-on flow. Add references to OpenID Connect, and the Open Web Interface for .NET (OWIN) framework. Request permissions for user resources through the Add -> Connected Service
dialog. A related code sample to explore the tooling required may be found on
GitHub.
For more information you may post your query in
Office 365 forum and also you may refer
Have your app appear in the Office 365 app launcher
Hope this helps!
Best Regards
Kamalakar
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