I'm new to JSS, I need to use JSS Layout service to send personalized content to a Mobile App(API-Only Mode).
From Jss Documentation
Via Layout Service
Layout Service requests are tracked on the server-side as a 'page view' just like a traditional Sitecore site would. This includes any goals, events, etc configured to be triggered by the route item. Because Sitecore's session tracking is cookie-based, it is important to pass browser cookies to Layout Service requests (this is done by default).
Since the requests are not from a browser but from a mobile app, how to make the tracking work while requesting the layout service.