Optimizing Chart Performance with Lazy Loading
Showcase a technique for implementing lazy loading of data in a TanStack React Chart to improve initial load times and performance.
import { useChart } from 'tanstack-react-chart';
import React, { useState, useEffect } from 'react';
Import necessary hooks from React and the useChart hook from tanstack-react-chart.
const LazyLoadChart = ({ dataEndpoint }) => {
const [data, setData] = useState([]);
const [loading, setLoading] = useState(true);
useEffect(() => {
const fetchData = async () => {
setLoading(true);
const response = await fetch(dataEndpoint);
const result = await response.json();
setData(result);
setLoading(false);
};
fetchData();
}, [dataEndpoint]);
Define a LazyLoadChart component that fetches chart data asynchronously from a specified endpoint only once upon component mount. The data is then stored in a state.
if (loading) return <p>Loading chart data...</p>;
const chart = useChart({
data,
// Define other chart options here
});
return <div>{/* Render your chart with loaded data here */}</div>;
};
export default LazyLoadChart;
Render a loading indicator while fetching data. Once data is fetched, initialize the chart with the `useChart` hook using the loaded data, and render the chart in the component.