This post explain how to configure Access Gateway to inject an Access Token to back end web server.
The following call flow represents the token injection process by Access Gateway
Follow the attached document for simple configuration. The documentation provides steps by step process for configuration with logs. This documentation is created as part of the learning process. Please follow the Access Manager documentation for official documentation. (https://www.netiq.com/documentation/access-manager-45/admin/data/b1dj6b2f.html#t40y6o6qwlhe)
You can also check Session 14: OAuth with Access Gateway 1: @ /cyberres/accmgmt/accessmanager/f/nam_discussions/352986/letsoauth---oauth-with-access-manager-sessions