redux-devtools/packages/redux-devtools-inspector-monitor/README.md
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# redux-devtools-inspector-monitor
[![npm version](https://badge.fury.io/js/redux-devtools-inspector.svg)](https://badge.fury.io/js/redux-devtools-inspector)
A state monitor for [Redux DevTools](https://github.com/reduxjs/redux-devtools) that provides a convenient way to inspect "real world" app states that could be complicated and deeply nested. Created by [@alexkuz](https://github.com/alexkuz) and merged from [`alexkuz/redux-devtools-inspector`](https://github.com/alexkuz/redux-devtools-inspector) into [`reduxjs/redux-devtools` monorepo](https://github.com/reduxjs/redux-devtools).
![](https://raw.githubusercontent.com/alexkuz/redux-devtools-inspector/master/demo.gif)
### Installation
```
yarn add --dev redux-devtools-inspector-monitor
```
### Usage
You can use `Inspector` as the only monitor in your app:
##### `containers/DevTools.js`
```js
import React from 'react';
import { createDevTools } from 'redux-devtools';
import Inspector from 'redux-devtools-inspector-monitor';
export default createDevTools(<Inspector />);
```
Then you can render `<DevTools>` to any place inside app or even into a separate popup window.
Alternative, you can use it together with [`DockMonitor`](https://github.com/gaearon/redux-devtools-dock-monitor) to make it dockable.
Consult the [`DockMonitor` README](https://github.com/gaearon/redux-devtools-dock-monitor) for details of this approach.
[Read how to start using Redux DevTools.](https://github.com/gaearon/redux-devtools)
### Features
The inspector displays a list of actions and a preview panel which shows the state after the selected action and a diff with the previous state. If no actions are selected, the last state is shown.
You may pin a certain part of the state to only track its changes.
### Props
| Name | Type | Description |
| -------------------- | ----------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| `theme` | Object or string | Contains either [base16](https://github.com/chriskempson/base16) theme name or object, that can be `base16` colors map or object containing classnames or styles. |
| `invertTheme` | Boolean | Inverts theme color luminance, making light theme out of dark theme and vice versa. |
| `supportImmutable` | Boolean | Better `Immutable` rendering in `Diff` (can affect performance if state has huge objects/arrays). `false` by default. |
| `tabs` | Array or function | Overrides list of tabs (see below) |
| `diffObjectHash` | Function | Optional callback for better array handling in diffs (see [jsondiffpatch docs](https://github.com/benjamine/jsondiffpatch/blob/master/docs/arrays.md)) |
| `diffPropertyFilter` | Function | Optional callback for ignoring particular props in diff (see [jsondiffpatch docs](https://github.com/benjamine/jsondiffpatch#options)) |
If `tabs` is a function, it receives a list of default tabs and should return updated list, for example:
```
defaultTabs => [...defaultTabs, { name: 'My Tab', component: MyTab }]
```
If `tabs` is an array, only provided tabs are rendered.
`component` is provided with `action` and other props, see [`ActionPreview.jsx`](src/ActionPreview.jsx#L42) for reference.
Usage example: [`redux-devtools-inspector-monitor-test-tab`](https://github.com/reduxjs/redux-devtools/tree/master/packages/redux-devtools-inspector-monitor-test-tab#containersdevtoolsjs).
### License
MIT