Login in Office 365 in non UI environment

Question

Hi,
I winder if it is possible to login under user using graph REST API in non UI environment.
What I want to achieve is as follows.
I have a Linux server machine which does not have any UI. And I would like to have a possibility to interact with OneDrive API using graph.
After search through the graph api I was able to test authorization flow using simple webengine view but this still involve UI which I would like to avoid if possible.
Thank you

Answer 1

If you want a fully non-interactive experience, use the client credentials flow: https://learn.microsoft.com/en-us/azure/active-directory/develop/v2-oauth2-client-creds-grant-flow
If you need to run in the context of a user, the ROPC flow is the only non-UI one, but it's not recommended: https://learn.microsoft.com/en-us/azure/active-directory/develop/v2-oauth-ropc
Instead, consider using the device code or similar flows.