Rendering Chart from External JSON File using AJAX - CanvasJS JavaScript Charts

Rendering Chart from External JSON File using AJAX - CanvasJS JavaScript Charts

by canvasjs

HTML

<script src="https://canvasjs.com/assets/script/canvasjs.min.js"></script>
<br><br>
<div id="chartContainer" style="height: 360px; width: 100%;"></div>

JavaScript

$(document).ready(function() {
  var dataPointsA = []
  var dataPointsB = []

  var chart = new CanvasJS.Chart("chartContainer", {
    title: {
      text: "JSON from External File"
    },
    data: [{
      type: "line",
      name: "line1",
      xValueType: "dateTime",
      dataPoints: dataPointsA
    }, {
      type: "line",
      name: "line2",
      xValueType: "dateTime",
      dataPoints: dataPointsB
    }, ]
  });
  
  $.ajax({
    type: 'GET',
    url: 'https://api.npoint.io/f723eaf4b58c57f7c1a5',
    dataType: 'json',
    success: function(field) {
      for (var i = 0; i < field.length; i++) {
        dataPointsA.push({
          x: new Date(field[i].time),
          y: field[i].xxx
        });
        dataPointsB.push({
          x: new Date(field[i].time),
          y: field[i].yyy
        });
      }
      chart.render();
    }
  });
})