Finally finished up a small voting SPA with django & react.
demo - http://bit.ly/2pUohKr ,
info - http://bit.ly/2pjqk98 .
Writing tests and pushing everything to Heroku took the most time.
I decided to create the backend on Django + Django Rest Framework. This combination give a lot of flexibility and additional perks like Django Admin & DRF Browserable API. Thought to use Vue instead of React, but decided to go with React for possible React Native addition later on.