How to access User drive(s) via Graph API?

Question

I am trying to access an organisations User drive(s)

I am getting this error:

Error code: BadRequest
Error message: Unable to retrieve user's mysite URL.
GET https://graph.microsoft.com/v1.0/users/{user-id}/drives

The documentation states

To access a user's OneDrive or OneDrive for Business, your app must request the drive relationship on the User resource.

Can someone explain what this means to me please? I am unable to do this on the AD Applications Permissions UI. How can i request the "drive" relationship on a User resource?

https://learn.microsoft.com/en-us/onedrive/developer/rest-api/api/drive_get?view=odsp-graph-online#get-a-users-onedrive

Answer 1

Hi @Adz

Hope you're doing well.

As you are using Client Credentials Flow, please verify the below:

• Check if the user is enabled with valid license
• If user has a license to use OneDrive, is not provisioned
• If a user's OneDrive is not provisioned but the user has a license to use OneDrive, this request will automatically provision the user's drive, when using delegated authentication

Note: Guest users won't have a dedicated OneDrive.
Also, please use GET /users/{idOrUserPrincipalName}/drive instead of /drives

Documentation Reference: Get User's OneDrive

Hope this helps.

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Answer 2

Hi @Adz ,

I agree with HarmeetSinghMSFT-7172's answer, if you want to Get a user's OneDrive, please note the following:

Also, please make sure the user-id is entered correctly. In my test, the same error will occur if you enter the wrong user-id.

Please reference to this document: Get a user's OneDrive

My test result:

Hope it can help you. Thanks for your understanding.

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