Microsoft Graph API access token validation failure

Question

I use this URL to get id_token:

https://login.microsoftonline.com/common/oauth2/authorize?
response_type=id_token%20code&
client_id=MY_CLIENT_GUID_ID_IN_         


        

Answer 1

OATH 2.0 requires multiple steps. The first request returns an OAUTH Code. The next step is converting that OATUH code into a Bearer Token. This is the step you are missing here.

I would also recommend using the v2 Endpoint which is a lot easier to work with (particularly with Graph). I wrote a v2 Endpoint Primer that walks through the process and may be helpful as well.