1.4.0 • Public • Published



If you are using npm:

npm install quickchart-js-standalone

QuickChart is a service that generates images of charts from a URL. Because these charts are simple images, they are very easy to embed in non-dynamic environments such as email, SMS, chat rooms, and so on.

See it in action

The QuickChart-Js-Standalone contains all dependency to generate charts with quickchart in a single pacakge.

Here's an example

As you can see, the Javascript or JSON object contained in the URL defines the chart:

Configuring your chart

const QuickChartJs = require("quickchart-js-standalone")
const path = require('path')
const QuickChartJsInstance = new QuickChartJs()

  type: 'bar',
  data: {
    labels: ['January', 'February', 'March', 'April', 'May'],
    datasets: [{
      label: 'Dogs',
      data: [50, 60, 70, 180, 190]
    }, {
      label: 'Cats',
      data: [100, 200, 300, 400, 500]

const FILE_NAME = "./test.png"

Bar Chart Output

The chart configuration object is based on the popular Chart.js API. Check out the Chart.js documentation for more information on how to customize your chart, or see QuickChart documentation for API options.

QuickChart includes many Chart.js plugins that allow you to add chart annotations, data labels, and more: chartjs-plugin-datalabels, chartjs-plugin-annotation, chartjs-plugin-piechart-outlabels, chartjs-chart-radial-gauge, chartjs-chart-box-and-violin-plot , chartjs-plugin-doughnutlabel, and chartjs-plugin-colorschemes.

Go to the full QuickChart documentation to learn more. See gallery for examples.

Chart.js versions

Chart.js v3 and v4 are supported via the version parameter (documentation to read more about parameters). Custom chart plugins such as annotations and outlabels currently not available for >= 3.0.0.

Each QuickChart instance should use 1 specific version of the Chart.js library. Mixing and matching versions (e.g., rendering a v2 chart followed by a v3 chart) is not well supported.

Dependencies and Installation

Chart generation requires several system dependencies: Cairo, Pango, libjpeg, and libgif. Run ./scripts/setup.sh for a fresh install on Linux machines (note that this also installs yarn, node, and monit).

To install system dependencies on Mac OSX, you probably just need to brew install cairo pango libffi. You may have to export PKG_CONFIG_PATH="/usr/local/opt/libffi/lib/pkgconfig" before installing node packages.

Once you have system dependencies installed, run yarn install or npm install to install the node dependencies.

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npm i quickchart-js-standalone

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  • bilaltahseen