I have two tokens: A proxy token I obtained through the OAuth Code Grant Flow for pre-authentication on ADFS and a SAP OAuth access token.

• I want to access a SAP OData Service that is protected through a Web Application Proxy (WAP) with pre-authentication.

  I have two tokens: A proxy token I obtained through the OAuth Code Grant Flow for pre-authentication on ADFS and a SAP OAuth access token.

  As far as I know I have to create a combined token and send it over the WAP to the SAP OData Service.

  { "proxy_token":"zugfze....","access_token":"gzugzugdw..." 

  The WAP will extract and validate the proxy token. If it is valid it will leave just the access token in the request for the (OData) service.

  I assume that I have to encode it in base64 and add it in the authorization header of the request as bearer:

  Authorization: Bearer tdzwftzdqwfz...

  This doesn't seem to work, because I am always redirected to the login page. Any ideas how to do that correctly? I cannot find any documentation about how to submit the combined token to the WAP.

  Thanks,
  GunVar