Arbor js – how to hold the data in the backend and how to import graph from file

I’m building a web where I want to display small graphs with arobr js. In the back end I have a huge graph which I’m building offline. I want to be able to send requests/queries from the web to the back end and get back small parts of this graph.

So I have 2 questions in mind:

1. How should I store the data? Even though the graph is huge (about 30000 nodes) it is still easy to hold it in the memory.

2. How can I send arbor js a graph back which it can read and display?

I looked around and haven’t seen any way to import graphs with arobr js. Another point I have trouble with is that the whole back end is written in python.