http://blog.davidvassallo.me/2017/10/17/how-to-create-a-heatmap-graph-network-visualization/

graph_3.js

external_nodes = [["1.1.1.1", 0.23],["2.2.2.2", 0.85], ...] //sample data - in reality you'd probably get this from an API

external_nodes.forEach(function(element){
 const label = element[0];
 const confidence = element[1];

 cytoscape_elements.push({
    data: {
       id: label,
       label: label,
       confidence: node_color_scale(confidence)
    }
 });
});