@alexkuz/react-json-tree

react-json-tree

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

Usage

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 } />

Result:

Check out examples directory for more details.

Theming

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 (http://www.monokai.nl)',
  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 } />
</div>

Result (Monokai theme, dark background):

Customization

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:

Customize Rendering

You can pass the following properties to customize rendered labels and values:

<JSONTree
    labelRenderer={raw => <strong>{raw}</strong>}
    valueRenderer={raw => <em>{raw}</em>}
/>

In this example the label and value will be rendered with <strong> and <em> wrappers respectively.

More Options

• Add expandAll property to expand all nodes.
• Add hideRoot={true} to hide a root node.

Credits

• All credits to Dave Vedder ([e-mail]), who wrote the original code as JSONViewer.
• Extracted from redux-devtools, which contained ES6 + inline style port of JSONViewer by Daniele Zannotti ([e-mail])
• Iterable support thanks to Daniel K.
• npm package created by Shu Uesugi ([e-mail]) per this issue.

Similar Libraries

• react-treeview
• react-json-inspector
• react-object-inspector

License

MIT