I am searching for a JavaScript library that is capable of creating line charts and making calls to a REST API every few seconds (such as 5s or 3s) in order to update the line chart dynamically. I have found some libraries that support live chart updating via JSON, but they only draw data from the initial JSON response. I need a solution that continues drawing new data as it becomes available. Any help would be greatly appreciated. Thank you very much.
If you're looking to incorporate Charts into your project, consider checking out Chartjs. This library offers a wide range of charts like Line, Bar, Pie, and more.
Creating a chart is simple, for example:
var ctx = document.getElementById('myChart').getContext('2d');
var myChart = new Chart(ctx, {
type: 'line',
data: {
labels: ['Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat', 'Sun'],
datasets: [{
label: 'apples',
data: [12, 19, 3, 17, 6, 3, 7],
backgroundColor: "rgba(153,255,51,0.4)"
}, {
label: 'oranges',
data: [2, 29, 5, 5, 2, 3, 10],
backgroundColor: "rgba(255,153,0,0.4)"
}]
}
});
For more examples, you can explore this introduction to Chart.js.
To dynamically update your Charts, refer directly to the Updating Charts documentation on this page. Here's an example from the link:
function addData(chart, label, data) {
chart.data.labels.push(label);
chart.data.datasets.forEach((dataset) => {
dataset.data.push(data);
});
chart.update();
}
function removeData(chart) {
chart.data.labels.pop();
chart.data.datasets.forEach((dataset) => {
dataset.data.pop();
});
chart.update();
}
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