C# Winforms Authenticate with Microsoft Onedrive

Question

Is is possible to login to Microsoft's OneDrive API without having to use a Browser-based OAuth mechanism?

I have a server application in C# that I would like to connect to a OneDrive account and manage files. Every code sample and piece of information I find always requires a browser-based authentication process. Is there way to utilize the Application secure keys or password to bypass this nuisance?

-Jeff

Answer 1

Yes, you can do that with application identity (no user login is needed).

Here are the steps that you have to do in your Azure portal:

1. Register Application in azure portal
2. Add required scopes like Files.ReadWrite.All etc..
3. Generate secrete Key for Identity

Or here is a Shortcut provided by MS Docs, where you can create Client Id and Secret with a single click.

Use Client ID , Tenant Id , Secret Key to authenticate any calls without user login.