I would use rails for the API and react on the front end. Rails 5.1 makes it super easy to do this and Rails 5.2 which is coming out soon (5.2.rc1 I'd already a

I would use rails for the API and react on the front end. Rails 5.1 makes it super easy to do this and Rails 5.2 which is coming out soon (5.2.rc1 I'd already available) also adds some neat features. Database I usually pick is postgres.