I'd love to hear about your experiences with building APIs for single-page-apps between Rails and Django. Were you using rails-api or just straight-up Rails? Is there an equivalent API-focused "flavor" of Django, or if not, to what extent did you find it easy to choose not to use server-rendering functionality? I've used Django for more standard apps, and Rails for both, but I'm curious about the pros and cons of using Django for this sort of thing, because I have no experience with it.