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

• codesandbox

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"
  daysOfTheWeek={['Sun', 'Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat']}
  textColor="#1F2328"
  startsOnSunday={true}
  includeBoundary={true}
  theme="grass"
  cx={10}
  cy={10}
  cr={2}
  onCellClick={(e, data) => console.log(data)}
  scroll={false}
  style={}
/>

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).

• daysOfTheWeek: Optional. The days of the week, which will be the head column of each row. The array should start from Sunday so that you can use with startsOnSunday option correctly. Defaults to ['Sun', 'Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat'].

• textColor: Optional. The color of indexes. String color code format, defaults to #1F2328.

• startsOnSunday: Optional. Whether to start the calendar on Sunday or not, defaults to true. If set to false, calendar will start on Monday.

• includeBoundary: Optional. Whether 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.

• scroll: Optional. Whether to show scrollbar or not, defaults to false.

• 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 theme={'grass'} />

Light Themes

empty

grass

cherry

cherry_blossom

pink

ocean

sky

halloween

winter

purquoise

mustard

gray

vomit

neonpunk

citypop

coral

emoji_positive

emoji_negative

Dark Themes

dark_empty

dark_grass

dark_cherry

dark_cherry_blossom

dark_pink

dark_ocean

dark_sky

dark_halloween

dark_winter

dark_purquoise

dark_mustard

dark_gray

dark_vomit

dark_neonpunk

dark_citypop

dark_coral

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 theme={customTheme} />
}

Or you can set theme properties directly,

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

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

And say if you'd like to set text theme like emoji, then you could add isTextTheme property as follows:

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

function App() {
  return (
    <ContributionCalendar
      theme={{
        isTextTheme: true, // <--- Must be added if it's a text theme.
        level0: '🙂',
        level1: '🤔',
        level2: '😎',
        level3: 'A',
        level4: 'B',
      }}
    />
  )
}