var chartColors = {
	red: 'rgb(255, 99, 132)',
	blue: 'rgb(54, 162, 235)'
};

var color = Chart.helpers.color;
var config = {
	type: 'bar',
	data: {
		datasets: [{
			type: 'line',
			yAxisID: 'temperature',
			backgroundColor: 'transparent',
			borderColor: chartColors.red,
			pointBackgroundColor: chartColors.red,
			tension: 0,
			fill: false
		}, {
			yAxisID: 'precipitation',
			backgroundColor: color(chartColors.blue).alpha(0.5).rgbString(),
			borderColor: 'transparent'
		}]
	},
	plugins: [ChartDataSource],
	options: {
		title: {
			display: true,
			text: 'JSON Lines data source (index) sample'
		},
		scales: {
			xAxes: [{
				scaleLabel: {
					display: true,
					labelString: 'Month'
				}
			}],
			yAxes: [{
				id: 'temperature',
				gridLines: {
					drawOnChartArea: false
				},
				scaleLabel: {
					display: true,
					labelString: 'Temperature (°C)'
				}
			}, {
				id: 'precipitation',
				position: 'right',
				gridLines: {
					drawOnChartArea: false
				},
				scaleLabel: {
					display: true,
					labelString: 'Precipitation (mm)'
				}
			}]
		},
		plugins: {
			datasource: {
				type: 'jsonl',
				url: 'sample-index.jsonl',
				rowMapping: 'index',
				indexLabels: '*.label',
				data: '*.data.*'
			}
		}
	}
};

window.onload = function() {
	var ctx = document.getElementById('myChart').getContext('2d');
	window.myChart = new Chart(ctx, config);
};
{"label": "January", "data": {"Temperature": 7, "Precipitation": 8.1}}
{"label": "February", "data": {"Temperature": 7, "Precipitation": 14.9}}
{"label": "March", "data": {"Temperature": 10, "Precipitation": 41.0}}
{"label": "April", "data": {"Temperature": 15, "Precipitation": 31.4}}
{"label": "May", "data": {"Temperature": 20, "Precipitation": 42.6}}
{"label": "June", "data": {"Temperature": 23, "Precipitation": 57.5}}
{"label": "July", "data": {"Temperature": 26, "Precipitation": 36.0}}
<head>
	<script src="https://cdn.jsdelivr.net/npm/chart.js@2.8.0"></script>
	<script src="https://cdn.jsdelivr.net/npm/chartjs-plugin-datasource@0.1.0"></script>
</head>
<body>
	<div>
		<canvas id="myChart"></canvas>
	</div>
</body>