It makes me feel like an idiot when I use an anon func and attempt to return a JSON like () => {"data": true} .

I agree with the other comments... this is really bad advice. If I'm doing an interview and somebody starts to BS instead of looking for more detail or admitting ignorance it shows a complete overconfidence in programming.

I'd recommend creating a template for future projects based on the current project. Starting from scratch often times creates extremely redundant programming efforts on your part. I use my own personal Node/React/SQL template that has sessions from the get-go so I don't have to worry about it every time I build a full-stack website.