Fabric-SSR (based on manray)
Converts Fabric.js JSON data into Image on server side
var fssr = require('fabric-ssr');
var canvasData = {objects: [], background: "white"}; // canvas data from fabric.Canvas.prototype.toJSON()
new fssr.Render(canvasData, {width: 1024,height: 768}, function (buff) {
if(buff.error){
}
if(buff.image) {
}
});