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React JSON Viewer Component, Extracted from redux-devtools

License: MIT License

JavaScript 100.00%

react-json-tree's Introduction


React JSON Viewer Component, Extracted from redux-devtools. Supports iterable objects, such as Immutable.js.


import JSONTree from 'react-json-tree'
// If you're using Immutable.js: `npm i --save immutable`
import { Map } from 'immutable'

// Inside a React component:
const json = {
  array: [1, 2, 3],
  bool: true,
  object: {
    foo: 'bar'
  immutable: Map({ key: 'value' })

<JSONTree data={ json } />


Check out examples directory for more details.


You can pass a theme prop containing base16 theme data to change the theme. The example theme data can be found here.

(The theme data is also used by redux-devtools, and extracting it to a separate npm package is a TODO).

const theme = {
  scheme: 'monokai',
  author: 'wimer hazenberg (',
  base00: '#272822',
  base01: '#383830',
  base02: '#49483e',
  base03: '#75715e',
  base04: '#a59f85',
  base05: '#f8f8f2',
  base06: '#f5f4f1',
  base07: '#f9f8f5',
  base08: '#f92672',
  base09: '#fd971f',
  base0A: '#f4bf75',
  base0B: '#a6e22e',
  base0C: '#a1efe4',
  base0D: '#66d9ef',
  base0E: '#ae81ff',
  base0F: '#cc6633'

<div style={{ backgroundColor: theme.base00 }}>
  <JSONTree data={ data } theme={ theme } />

Result (Monokai theme, dark background):


Customize CSS

You can pass the following properties to customize styling (all optional):

<JSONTree getArrowStyle={(type, expanded) => ({})}
    getItemStringStyle={(type, expanded) => ({})}
    getListStyle={(type, expanded) => ({})}
    getLabelStyle={(type, expanded) => ({})}
    getValueStyle={(type, expanded) => ({})} />

Here type is a string representing type of data, expanded is a current state for expandable items. Each function returns a style object, which extends corresponding default style.

For example, if you pass the following function:

const getStyle = (type, expanded) =>
  (expanded ? { textTransform: 'uppercase' } :
              { textTransform: 'lowercase' });

Then expanded nodes will all be in uppercase:

Customize Labels for Arrays, Objects, and Iterables

You can pass getItemString to customize the way arrays, objects, and iterable nodes are displayed (optional).

By default, it'll be:

<JSONTree getArrowStyle={(type, data, itemType, itemString)
  => <span>{itemType} {itemString}</span>}

But if you pass the following:

const getItemString = (type, data, itemType, itemString)
  => (<span> // {type}</span>);

Then the preview of child elements now look like this:


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