chartjs react code example

Example 1: react chart js 2

npm install --save react-chartjs-2 chart.js

Example 2: react chartjs 2

npm install --save react-chartjs-2 chart.js

Example 3: react js charts

import React, { Component } from "react";
import Chart from "react-apexcharts";

class App extends Component {
  constructor(props) {
    super(props);

    this.state = {
      options: {
        chart: {
          id: "basic-bar"
        },
        xaxis: {
          categories: [1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998]
        }
      },
      series: [
        {
          name: "series-1",
          data: [30, 40, 45, 50, 49, 60, 70, 91]
        }
      ]
    };
  }

  render() {
    return (
      <div className="app">
        <div className="row">
          <div className="mixed-chart">
            <Chart
              options={this.state.options}
              series={this.state.series}
              type="bar"
              width="500"
            />
          </div>
        </div>
      </div>
    );
  }
}

export default App;

Example 4: 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;