JSFiddle - React, Tailwind, and code Playground

HTML

<script src="https://canvasjs.com/assets/script/canvasjs.min.js"></script>
<br/><!-- Just so that JSFiddle's Result label doesn't overlap the Chart -->
<div id="chartContainer" style="height: 360px; width: 100%;"></div>

JavaScript

var data_arr = []; //global array
function getData() {
  $.when($.getJSON(
    'https://api.thingspeak.com/channels/312667/feeds.json?timezone=Australia/Brisbane&days=1&timescale=240',
    function(json_data) {
      console.log(json_data);
      json_data.feeds.forEach(function(data) {
        data_arr.push({
          x: new Date(data.created_at),
          y: parseFloat(data.field1)
        });
      });

      console.log("data_arr: ", data_arr);
    })).then(function(){
    	chart.render();
    });
};

var chart = new CanvasJS.Chart("chartContainer", {
  title: {
    text: "Temperature"
  },
  axisX: {
    valueFormatString: "HH:mm TT",
    // labelAngle: -50
  },
  data: [{
    xValueType: "dateTime",
    type: "line",
    dataPoints: data_arr,
  }]
});

getData();