Exporting chart as base64 encoded Image using toDataurl - CanvasJS JavaScript Charts

Exporting chart as base64 encoded Image using toDataurl - CanvasJS JavaScript Charts

by canvasjs

HTML

<script src="https://canvasjs.com/assets/script/canvasjs.min.js"></script>
<script src="https://getfirebug.com/firebug-lite-debug.js"></script>
<br/><!-- Just so that JSFiddle's Result label doesn't overlap the Chart -->

<div id="chartContainer" style="height: 360px; width: 100%;"></div>
<a href="#" id="btn-download" download="chart.jpg" target="_blank">Get Base64 Image</a>

JavaScript

var chart = new CanvasJS.Chart("chartContainer",
{
		title: {
			text: "Exporting chart using toDataurl"
		},
		data: [
		{
			type: "spline",
			dataPoints: [ 
				{ x: 10, y: 4 }, 
				{ x: 20, y: 7 },
				{ x: 30, y: 2 },
				{ x: 40, y: 3 },
				{ x: 50, y: 5 }
			]
		}
		]
});

chart.render();

$("#btn-download").click(function () {
    
    var canvas = $(".canvasjs-chart-canvas").get(0);
    var dataURL = canvas.toDataURL('image/jpeg');
    console.log(dataURL);

    $("#btn-download").attr("href", dataURL);

});