Fabric.js - how to save canvas on server with custom attributes

Question

I\'d like to be able to save the current canvas\' state to a server-side database, probably as a JSON string, and then later restore it with loadFromJSON. Typic

Answer 1

A more simple approach would be to add the properties post-stringify:

var stringJson = JSON.stringify(this.canvas);
var objectJson = JSON.parse(string.Json);

//remove property1 property
delete objectJson.property1;

//add property2 property
delete objectJson.property2;

// stringify the object again
stringJson = JSON.stringify(objectJson);

// at this point stringJson is ready to be sent over to the server
$http.post('http://serverurl/',stringJson);