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| |chartRef|function|Access to the chart ref to use Chart API function defined in the official Docs|

SeriesObject

SeriesObject is an object with the following fields:

• options: the series-specific options. Please see the reference for the different serie types:
  • candlestickSeries
  • barSeries
  • lineSeries
  • areaSeries
  • histogramSeries
• 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.