/qognicafinance-react-lightweight-charts

A simple react wrapper for the tradingview lightweight charts module by Qognica Finance. Forked from Kaktana.

Primary LanguageJavaScriptMIT LicenseMIT

React.js wrapper for Lightweight Charts to build interactive financial charts in react.

Based on Kaktana react lightweight charts, modified by Qognica Finance

npm version npm downloads

Download and Installation

Installing via npm
npm install --save @qognicafinance/react-lightweight-charts
Installing via yarn
yarn add @qognicafinance/react-lightweight-charts

Usage

import Chart from '@qognicafinance/react-lightweight-charts'

To create a basic candlestick chart, write as follows:

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

    this.state = {
      options: {
        alignLabels: true,
        timeScale: {
          rightOffset: 12,
          barSpacing: 3,
          fixLeftEdge: true,
          lockVisibleTimeRangeOnResize: true,
          rightBarStaysOnScroll: true,
          borderVisible: false,
          borderColor: "#fff000",
          visible: true,
          timeVisible: true,
          secondsVisible: false
        }
      },
      candlestickSeries: [{
        data: [
          { time: '2018-10-19', open: 180.34, high: 180.99, low: 178.57, close: 179.85 },
          { time: '2018-10-22', open: 180.82, high: 181.40, low: 177.56, close: 178.75 },
          { time: '2018-10-23', open: 175.77, high: 179.49, low: 175.44, close: 178.53 },
          { time: '2018-10-24', open: 178.58, high: 182.37, low: 176.31, close: 176.97 },
          { time: '2018-10-25', open: 177.52, high: 180.50, low: 176.83, close: 179.07 },
          { time: '2018-10-26', open: 176.88, high: 177.34, low: 170.91, close: 172.23 },
          { time: '2018-10-29', open: 173.74, high: 175.99, low: 170.95, close: 173.20 },
          { time: '2018-10-30', open: 173.16, high: 176.43, low: 172.64, close: 176.24 },
          { time: '2018-10-31', open: 177.98, high: 178.85, low: 175.59, close: 175.88 },
          { time: '2018-11-01', open: 176.84, high: 180.86, low: 175.90, close: 180.46 },
          { time: '2018-11-02', open: 182.47, high: 183.01, low: 177.39, close: 179.93 },
          { time: '2018-11-05', open: 181.02, high: 182.41, low: 179.30, close: 182.19 }
        ]
      }]
    }
  }

  render() {
    return (
      <Chart options={this.state.options} candlestickSeries={this.state.candlestickSeries} autoWidth height={320} />
    )
  }
}

Wrapper props

Name Type Description
options object Defines the global options of the chart. Refer to the official Docs
autoWidth boolean If true, the chart resizes automatically to 100% of its container width
autoHeight boolean If true, the chart resizes automatically to 100% of its container height
width number if autoWidth is false, defines the width of the chart in px
height number if autoHeight is false, defines the height of the chart in px
legend string Display a global legend on the top-left corner of the chart (can be considered as a title)
candlestickSeries SeriesObject list List of candlestick series to be displayed
barSeries SeriesObject list List of bar series to be displayed
lineSeries SeriesObject list List of line series to be displayed
areaSeries SeriesObject list List of area series to be displayed
histogramSeries SeriesObject list List of histogram series to be displayed
onClick MouseEventHandler Subscribe to click events. The callback function is defined in the official Docs
onCrosshairMove MouseEventHandler Subscribe to crosshair move events. The callback function is defined in the official Docs
onTimeRangeMove TimeRangeChangeEventHandler Subscribe to time range change events. The callback function is defined in the official Docs
from Date Sets visible range from the specified date. Date object is defined in the official Docs
to Date Sets visible range to the specified date. Date object is defined in the official Docs
darkTheme boolean If true, a custom dark theme palette is applied to the chart

SeriesObject

SeriesObject is an object with the following fields:

  • options: the series-specific options. Please see the reference for the different serie types:
  • data: the series data. please refer to the official Docs
  • markers: List of Marker to be displayed on the series.
  • priceLines: List of PriceLine to be displayed on the series.
  • legend: the series legend to be displayed on the top-left corner of the chart. The value of the series at the selected time is displayed beside the text legend.
  • linearInterpolation: A number in seconds to auto-fill series data if no data has been provided between two data points for more than the provided time range.

License

@qognicafinance/react-lightweight-charts is released under MIT license. You are free to use, modify and distribute this software, as long as the copyright header is left intact.