We've a customer requirement to authenticate to sharepoint online using sharepoint app-only model.Obtained access token by posting a request to Microsoft Azure ACS," https://accounts.accesscontrol.windows.net/cde6fa59-abb3-4971-be01-2443c417abcd/tokens/OAuth/2" with client_credentials in request body using postman tool.
As access token expires, how to get refresh token?
From the above request, we only get access token. Do we've a separate endpoint to retrieve refresh token.
Please help.