Data is an amazing story teller, and React charting libraries can help your present it in clear and captivating way on your React app.
Chart.js is one such library, that boosts versatility when it comes to developing custom chart designs resulting in rich data visualizations on-the-fly. Using React and Chart.js concurrently, it allows developers to take advantage of these strengths; accomplishing dynamic chart displays that positively impact engagement and increase conversion.
In this article, we will cover how you can install Chart.js into React, dive into the principles of Chart.js, and learn how to use React components to create various sorts of charts such as line, bar, pie, and more.
We will also learn how to make charts look more appealing and fit your application’s style and design, and how to use React to add animations and interactivity to your charts. So, let's get started and learn how to use Chart.js in React to create stunning data visualizations!
Before you start integrating Chart.js into React projects, it’s important to ensure that we have the essential tools installed.
Open your terminal and run the command to install these libraries.
React-chartjs-2 is a React wrapper for Chart.js 2.0 and 3.0 that allows us to use Chart.js elements as React components.
In this post, we will use improvised data to create three different charts that depict the amount of users gained in an organisation.
We will generate various React components for charts for the sake of convenience and explore some examples of charts.
The first step when seeking to create a line chart in your React application is generating a fresh directory named as "components."
Next, create a file located within this folder titled "LineChart.js." Use import with Chart.js and react-chartjs-2 in your LineChart.js file soon.
A line chart requires labels to name each data point along the x-axis and y-axis. These labels are usually provided as props to the chart component. In addition to the labels, line charts also require data as props to display the information on the graph.
The data prop contains datasets that holds various properties of the chart, such as the height, width, and color of the lines. You can edit these datasets to customize the appearance of the line chart, including changing the backgroundColor and borderColor. Here’s an example:
The example code showcased above is an instance of a simple line chart that can be subsumed within a React application through its corresponding file - LineChart.js.
It's essential here that you receive accurate chart interpretations due entirely upon keen attention being applied in passing data via properly formatted props prior to utilizing our LineChart component.
Similarly, we can work with a Bar Chart in Chart.js. Here’s an example:
Pie chart implementation is no different, and we may use a comparable method to do so. Let’s understand the implementation using an example:
Incorporating a pie chart that depicts static data for top-liked React libraries is possible by updating your PieChart.js file's data object with this code:
Building upon our ability to demonstrate static data on visual aids, let us proceed towards understanding how we may incorporate real-time updates into charts.
Assume that we desire producing a line chart illustrating hourly signups for new website users. Utilizing libraries such as socket.io, connecting them with servers allows us to receive real-time statistics which immediately displays on charts via tools such as the Chart.js API .
The code below uses functions like setInterval() to update the data every minute. This keeps the information fresh and the users interested. You can see an example of using soccket.io() and Chart.js() for this.
This example displays how we connect to a server using socket.io-client , responding to every occurrence of a newUser event by modifying our state with new user counts. But in the provided code, the reading is captured at a time interval of 1 minute (60,000 milliseconds).
Here, integration makes use of two different instances where we invoke hooks:
Chart.js is a popular React Charting library, that helps in creating customizable and interactive charts and graphs in web applications. It has many helpful APIs for React, that makes it easy to create and change charts in components.
This tool can make different charts like scatterplots, bar, lines, or pies charts. You can use these charts to compare, correlate, distribute, or show the composition of your data. The good thing about Chart.js is, it works for both static and dynamic data.
Before we wind up, here are some reasons you should consider Charts.js to create interactive charts:
You can also refer to the code we have shared, to create different types of charts with Charts.js.