Thanks for pointing that out! Just added a note to the chapter.
Wording under the get.js insert is a little confusing. It says, " The major difference here is that we are doing a dynamoDb.get(params) to get a note object given the noteId (still hardcoded) and userId that is passed in through the request.". The noteId is actually passed and the userId is hardcoded.
P.S. not sure if this is the right platform to suggest edits… but if not maybe reply with where I could do that 
Ah good point. Yeah you can hit Edit this page on these chapters to make a change using GitHub.