Microsoft Graph Api - upload file and invalidRequest

Question

Hi,
I have a problem uploading files to sharepoint using the graph api.
With the token downloaded from https://developer.microsoft.com/en-us/graph/graph-explorer everything works fine. I get a response with a status of 200.

However, when I want to upload a file with a token received from AD I get an invalid request.

In the scope of my token there is: "Files.ReadWrite Files.ReadWrite.All Group.Read.All Group.ReadWrite.All GroupMember.Read.All GroupMember.ReadWrite.All openid profile Sites.Read.All Sites.ReadWrite.All User.Read email".

Reading the file list works without any problems

Below is the code on how I generate the token to Graph Api

Answer 1

Hi @tymon130 ,

According to my research and testing, you can use the following API to generate the access_token to Graph API, and then upload file:

https://login.microsoftonline.com/tenant-id/oauth2/token  

Then, you can use the access_token , and upload file to SharePoint, here is my test result:

More information for reference: https://dzone.com/articles/getting-access-token-for-microsoft-graph-using-oau

Hope it can help you. Thanks for your understanding.

Note: Microsoft is providing this information as a convenience to you. The sites are not controlled by Microsoft. Microsoft cannot make any representations regarding the quality, safety, or suitability of any software or information found there. Please make sure that you completely understand the risk before retrieving any suggestions from the above link.

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Answer 2

My case involves uploading files on behalf of a user. The way you have shown is through the application. Unfortunately I don't get such permissions.