SharePoint Rest API how to get Access Token?

by

To call SharePoint specific APIs you need to get a SPO specific access token. You can “swap” an regular MS Graph refresh token for an SPO specific token by doing the following:

  1. Get a delegated auth token from graph as you normally would
    (https://learn.microsoft.com/en-us/graph/auth-v2-user)
  2. Use the refresh_token you got and exchange it for an SPO access token by calling the auth endpoint again:
POST https://login.microsoftonline.com/{{tenantName}}/oauth2/v2.0/token

With the following form data:

client_id=<APP ID>
client_secret=<APP SECRET>
refresh_token=<REFRESH TOKEN FROM ABOVE>
grant_type=refresh_token
scope=https://<YOUR TENANT NAME>.sharepoint.com/Sites.Read.All
  1. Take the access token and call the SPO API

You must ensure your app is registered with the correct permissions. In the case above the app must have Sites.Read.All for example.

More Related Contents:

  1. Upload file to SharePoint drive using Microsoft Graph
  2. How Can I Identify Cloud Computing Applications? Can I Say Like Facebook Is Cloud Application?
  3. Get the content of a sharepoint folder with Excel VBA
  4. Dated reminders in sharepoint calendars
  5. How to read SharePoint Online (Office365) Excel files in Python with Work or School Account?
  6. Upload a file to SharePoint through the built-in web services
  7. unidentified javascript function [closed]
  8. How to avoid implementing methods repeatedly for identical classes?
  9. how to get data from a sharepoint list using java script and jquery? [closed]
  10. Best way to resolve file path too long exception
  11. How Can I Bypass the X-Frame-Options: SAMEORIGIN HTTP Header?
  12. How do you upload a file to a document library in sharepoint?
  13. No ‘Access-Control-Allow-Origin’ header with Microsoft Online Auth
  14. Which Graph API should be used with Azure AD B2C
  15. Python – Download files from SharePoint site
  16. Tenant does not have a SPO license
  17. What does square bracket [] mean in the below code?
  18. MSI Permissions for Graph API
  19. Open an Excel file from SharePoint site
  20. What happens when I edit web.config?
  21. The HTTP request is unauthorized with client authentication scheme ‘Ntlm’ The authentication header received from the server was ‘NTLM’
  22. When should I use Outlook REST API vs Microsoft Graph API?
  23. Unable to filter messages by recipient in Microsoft Graph Api. One or more invalid nodes
  24. IDX21323 OpenIdConnectProtocolValidationContext.Nonce was null, OpenIdConnectProtocolValidatedIdToken.Payload.Nonce was not null
  25. ThisWorkbook.FullName returns a URL after syncing with OneDrive. I want the file path on disk
  26. Download File From SharePoint 365
  27. How to send email from any one email using Microsoft Graph
  28. e.preventdefault(); not working
  29. Azure AD Custom Claims in JWT
  30. Programmatically Export SSRS report from sharepoint using ReportService2010.asmx

Leave a Comment