Can nodes be added programatically?

[nutmix]

we have a very complex data structure we pull from various APIs. We want to traverse this structure and create nodes and sub nodes etc. Also, if he user tries to open a particular node, we will need a callback which will inject further nodes after making various api calls and processing the data. I see various methods to get nodes, but none to "add" them?

[vakata]

You probably need to set core.data to a callback function and make your requests / api calls on the server and return as needed. You can also use create_node(), but from what I understand you will be better suited to lazy loading the tree.