Chart js react

yarn add react-chartjs-2 chart.js // npm install  react-chartjs-2 chart.js

React chart.js

import { useState, useEffect, useRef } from "react";
import { Chart as ChartJS, ArcElement, Tooltip, Legend } from "chart.js";
import { Pie } from "react-chartjs-2";

ChartJS.register(ArcElement, Tooltip, Legend);

export const data = {
  labels: ["Case on Hold", "Submitted", "In Production", "Shipped"],
  datasets: [
    {
      label: "# of Votes",
      data: [12, 19, 3, 5],
      backgroundColor: ["#F2CC59", "#BA68C8", "#407BFF", "#E6E5E6"],
      borderColor: ["#F2CC59", "#BA68C8", "#407BFF", "#E6E5E6"],
      borderWidth: 1,
    },
  ],
};

const pieOptions = {
  plugins: {
    legend: {
      display: false,
      labels: {
        font: {
          size: 12,
        },
      },
    },
  },
};

export default function ChartView() {
  const [charView, setChatView] = useState<any>([]);
  const summaryRef: any = useRef(null);

  useEffect(() => {
    setChatView(summaryRef?.current?.legend?.legendItems);
  }, []);

  return (
    <div>
		<Pie data={data} options={pieOptions} ref={summaryRef} />    
        {charView?.map((data: any, i: number) => (
          <Box display="flex" sx={{ mt: 2 }} key={i}>
                        <Box
              sx={{
                  height: 16,
                  width: 16,
                  background: `${data?.fillStyle}`,
                  borderRadius: 5,
                  mr: 0.5,
                  }}
              />
              	<Typography variant="body2"> {data?.text}</Typography>
              </Box>
		))}
    </div>
  );
}

React chart js 2 api data

import React, { Component } from 'react';
import './App.css';
import axios from 'axios'
import Chart from './components/Chart';

class App extends Component {
  constructor(){
    super();
    this.state = {
      chartData:{}
    }
  }

  componentDidMount() {
    this.getChartData();
  }

  getChartData() {
    axios.get("http://www.json-generator.com/api/json/get/coXIyroYAy?indent=2").then(res => {
        const coin = res.data;
        let labels = [];
        let data = [];
        coin.forEach(element => {
        labels.push(element.labels);
        data.push(element.data);

          });

       console.log(coin)
        this.setState({
          chartData: {
            labels:labels,
            datasets: [
              {
                label: "Population",
                data: data,
                backgroundColor: [
                  "rgba(255, 99, 132, 0.6)",
                  "rgba(54, 162, 235, 0.6)",
                  "rgba(255, 99, 132, 0.6)"
                ],
              }
            ]
          }
        });
      });
    }

  render(){

        return (
          <div className="App">
          {Object.keys(this.state.chartData).length &&
            <Chart
              chartData={this.state.chartData}
              location="Massachusetts"
              legendPosition="bottom"
            />
          }
          </div>
        );

    }     
}

export default App;

Source: stackoverflow.com

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