If you plan to use Django as an API server, you might be interested in Lightweight Django (http://shop.oreilly.com/product/0636920032502.do), which shows you how to design and build an API server using Django, Django Rest Framework (another great Django related project) and Backbone on the front-end.
I don't get it: why does moving to microservices mean ditching Django? Couldn't you take your Django monolith and break it into separate (still-Django) microservices? I get that Django is seen as "too heavyweight" to do such a thing, though there are literally books (http://shop.oreilly.com/product/0636920032502.do) written about how to slim down Django.
I get that monolith to microservice is all the rage these days, I just don't understand (and the article doesn't really say) why you have to "ditch Django" to do that.
and the Lightweight Django book: http://shop.oreilly.com/product/0636920032502.do