The google doc below and video will jump start you learning patient facing fhir in cerner.
Google Doc can also be accessed here
Cerner Patient FHIR in 4.5 minutes
The hardest part to getting started with FHIR for patients is setting up a server ... repl.it makes this super easy.
Registering your app in the Cerner Code Console
You need a client_id to make it work.
Editing Launch.html
What you registered needs to line up with what is in launch.html
Launch your app
See data in your app as JSON in pre blocks.