react-contribution-calendar

react-contribution-calendar

A GitHub-like contribution calendar component for React, built with Vite and TypeScript. This provides a visual representation of contribution activity, similar to the contribution graph seen on a GitHub profile.

Installation

$ npm i react-contribution-calendar

Note
Add --save if you are using npm < 5.0.0

Demo

Live Demo

Usage

import { ContributionCalendar } from 'react-contribution-calendar'

const data = [
  {
    '2020-04-20': {
      level: 2,
    }
  },
  {
    '2023-07-08': {
      level: 1,
    },
  },
  {
    '2023-07-09': {
      level: 4,
      data: {},
    },
  },
  {
    '2023-03-31': {
      level: 3,
      data: {
        myKey: 'my data',
      },
    },
  },
]

<ContributionCalendar
  data={data}
  start="2020-04-04"
  end="2023-05-19"
  textColor="#000000"
  includeBoundary={true}
  theme="grass"
  cx={10}
  cy={10}
  cr={2}
  onCellClick={(e, data) => console.log(data)}
/>

APIs

ContributionCalendar

ContributionCalendar is the main component of this library. It takes a data property, which is an array of objects representing the contribution data, and a theme property to customize its appearance.

• data: An array of objects, where each object has a date string(YYYY-MM-DD format) as key, and an InputDataProps object as value. Defaults to [].

  • An example data is as follows:

    const data = [
      {
        '2023-07-08': {
          level: 3,
          data: {
            myKey: 'my data',
          },
        },
      },
      {
        '2023-07-09': {
          level: 1, // `data` attribute could be omitted
        },
      },
    ]
    

• start: Optional. The starting date for the calendar to start, defaults to current year's January 1st(YYYY-MM-DD format).

• end: Optional. The ending date for the calendar to end, defaults to current year's December 31st(YYYY-MM-DD format).

• textColor: Optional. The color of indexes. String color code format.

• includeBoundary: Optional. Whethere to include the boundary cells in the starting or ending date column, defaults to true.

• theme: Optional. A string that represents a predefined theme name, or an object with custom theme colors. Defaults to grass.

• cx: Optional. The pixel size of width of each cell, defaults to 10.

• cy: Optional. The pixel size of height of each cell, defaults to 10.

• cr: Optional. The pixel size of border radius of each cell, defaults to 2.

• onCellClick: Optional. An onClick mouse event on each table cell.

createTheme

createTheme is a helper function to create custom themes. It takes a string representing a predefined theme name or an object containing custom theme colors. This returns a theme object(ThemeProps).

Themes

You can customize the appearance of the <ContributionCalendar /> with the theme property. We provide several built-in themes.

// Replace `theme` attribute with belows
<ContributionCalendar data={[]} theme={'grass'} />

Light Themes

grass

pink

halloween

winter

cherry

cherry_blossom

sky

purquoise

blue_pop

mustard

Dark Themes

dark_grass

dark_pink

dark_halloween

dark_winter

dark_blue

dark_ocean

dark_vomit

Custom Theme

import { ContributionCalendar, createTheme } from 'react-contribution-calendar'

function App() {
  /* Define your custom theme */
  const customTheme = createTheme({
    level0: '#ebedf0',
    level1: '#9be9a8',
    level2: '#40c463',
    level3: '#30a14e',
    level4: '#216e39',
  })

  return <ContributionCalendar data={[]} theme={customTheme} />
}

Or you can set theme properties directly,

import { ContributionCalendar } from 'react-contribution-calendar'

function App() {
  return (
    <ContributionCalendar
      data={[]}
      theme={{
        /* Assign theme properties directly */
        level0: '#ebedf0',
        level1: '#9be9a8',
        level2: '#40c463',
        level3: '#30a14e',
        level4: '#216e39',
      }}
    />
  )
}