I have a Moodle LMS site and now looking to provide access to the students right on their mobiles. I know, there is a phonegap based app but I am looking to design & develop a native Android app. I have already implemented the design and now need some inputs to kick start integration with online LMS. I have enabled my online site for mobile access. My curiosity is how to Connect and Authenticate the users from app? I am looking for Rest or Soap based Login API to authenticate. Can someone give me inputs?