Let's change this to send the notes post to another method that is responsible for only posting a note.  These are two separate that activities, is there any reason to conflate them in a single end-point?

Can we have the view call the API endpoint directly and use that to save the note?  Or if note, becuase packaging is needed, can we have the view call an endpoint that is an adapter which does whatever packaging needed and then calls the API endpoint?  That way the logic for saving notes stays in a single place.