I saw in the cytoscape.js tutorial that there are ways to represent the graph as image (png, jpg), but there is a way to represent it as regular graph, and if the user would wan
You don't need server side code to save files from the browser anymore.
You can save files using the saveAs()
API in JS. Here's a polyfill: https://github.com/eligrey/FileSaver.js/
If you want the graph data, it would just be
var jsonBlob = new Blob([ JSON.stringify( cy.json() ) ], { type: 'application/javascript;charset=utf-8' });
saveAs( jsonBlob, 'graph.json' );
Or for images
var b64key = 'base64,';
var b64 = cy.png().substring( content.indexOf(b64key) + b64key.length );
var imgBlob = base64ToBlob( b64, 'image/png' );
saveAs( imgBlob, 'graph.png' );
(Refer to other question re. base64toBlob())