The ODS users generate a Consumer Key and a Consumer Secret for their application instances by ODS application UI (Setings -> OAuth Keys). You can find more information and sample scenario here
To reach a specific ODS resource via the ODS REST API, a user must also specify a API method and associated API parameters.
ODS OAuth standards validate the credentials of an external user by means of the digital signature. If the user signs the request, and the ODS server validates the digital signature, the developer is granted access to the requested resource.
To tool is accessible via http:/host:port/ods/oauth_test.vsp