This video demonstrates how to use the OAuth2 module to get an access token and use that access token to access protected resources of FHIR module.
Slides : https://goo.gl/u89Em0
Mid-Term Presentation : https://talk.openmrs.org/t/gsoc-2015-oauth2-support-for-web-services-apis-midterm-presentation/2284
Github : https://github.com/maany/openmrs-module-oauth2-prototype/tree/oauth2-openmrs-1.11.x
Talk Post : https://talk.openmrs.org/t/compatibility-issues-while-integrating-spring-security-oauth-project/2320/
Design Forum Notes(July 6, 2015) : http://notes.openmrs.org/Design-Forum-2015-07-06