Chart.js - add gradient instead of solid color - implementing solution

Question

I am using Chart.js and everything is ok, but I want to replace current color background (fillColor : \"rgba(250,174,50,0.5)\") with a gradient. I have solution for replaci

Answer 1

For using in react I did the following way you need to pass an id to your component and then fetch the element using that id

import React, { Component } from 'react'
import { Line } from 'react-chartjs-2'

export default class GraphComponent extends Component{
  constructor(props){
    super(props)
    this.state = {
      chartData: {}
    }
  }

  componentDidMount(){
    //your code
    var ctx = document.getElementById('canvas').getContext("2d")
    var gradient = ctx.createLinearGradient(0, 0, 0, 400)
    gradient.addColorStop(0, 'rgba(229, 239, 255, 1)')
    gradient.addColorStop(1, '#FFFFFF')
    const newData = {
      labels: [1, 1],
      datasets: [
        {
          label: 'usd',
          data: [1,1],
          backgroundColor: gradient,
          borderColor: this.props.border_color,
          pointRadius: 0
        }
      ]

    }
    this.setState({chartData: newData})
  }

  //more of your code

  render(){
    return(
          

    )
  }
}

this is only my second answer so please forgive me if I have made any mistakes in writing