How to use Fetch API to Automatically Update Data with JSON in Chart JS

How to use Fetch API to Automatically Update Data with JSON in Chart JS

In this video we will explore how to use fetch API to automatically update data with JSON in Chart js. Using the fetch API in Chart js means you need to work from your local server else it will not work.

What we will do is extract the values and once we extra the values we will feed them to the chart gradually one at the time. Secondly we need to remove the old feed once we have more than 12 data points. We will use fetch API with async connection and getting it all from a JSON file we have on our server.

Let's explore this right now!

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Creating charts in javascript is very rewarding but extremely challenging. The Chart JS library made it easier to render charts. However the chart js documentation is hard to understand for many. It requires a lot of different moving parts to work along. The canvas tag, javascript, arrays and Chart JS all need to be combined to draw an eye catching bar chart or line chart.

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Chart JS is a javascript library to draw charts in the canvas tag on your site. Presenting data in a visual manner such as charts is more effective and appealing. All the charts are always coded in the latest Chartjs version which is as of this recording Chart JS 3.6.2.

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