Hi there,
Our use case is

user launches our Joomla web site from a mobile browser
user logs into our Joomla web site
User click on a menu item
At this point we need to make a rest call to your module, with the current signed user, so as to get so profile details.
With the profile details, we will launch our Mobile app.

Question-

1. How can I use your REST API within my joomla site as part of my menu action
before we launch the mobile app

ideally we need the current logged in session in our web site and use that to make a rest api call to get the profile details and pass it onto our mobile app.

NOTE: we dont want to prompt for username and password from our user