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https://github.com/reduxjs/redux-devtools.git
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59 lines
3.2 KiB
Markdown
59 lines
3.2 KiB
Markdown
Redux DevTools Instrumentation
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==============================
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Redux enhancer used along with [Redux DevTools](https://github.com/reduxjs/redux-devtools) or [Remote Redux DevTools](https://github.com/zalmoxisus/remote-redux-devtools).
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### Installation
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```
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npm install --save-dev redux-devtools-instrument
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```
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### Usage
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Add the store enhancer:
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##### `store/configureStore.js`
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```js
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import { createStore, applyMiddleware, compose } from 'redux';
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import thunk from 'redux-thunk';
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import devTools from 'remote-redux-devtools';
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import reducer from '../reducers';
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// Usually you import the reducer from the monitor
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// or apply with createDevTools as explained in Redux DevTools
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const monitorReducer = (state = {}, action) => state;
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export default function configureStore(initialState) {
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const enhancer = compose(
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applyMiddleware(...middlewares),
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// other enhancers and applyMiddleware should be added before the instrumentation
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instrument(monitorReducer, { maxAge: 50 })
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);
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// Note: passing enhancer as last argument requires redux@>=3.1.0
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return createStore(reducer, initialState, enhancer);
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}
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```
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### API
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`instrument(monitorReducer, [options])`
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- arguments
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- **monitorReducer** *function* called whenever an action is dispatched ([see the example of a monitor reducer](https://github.com/gaearon/redux-devtools-log-monitor/blob/master/src/reducers.js#L13)).
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- **options** *object*
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- **maxAge** *number* or *function*(currentLiftedAction, previousLiftedState) - maximum allowed actions to be stored on the history tree, the oldest actions are removed once `maxAge` is reached. Can be generated dynamically with a function getting current action as argument.
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- **shouldCatchErrors** *boolean* - if specified as `true`, whenever there's an exception in reducers, the monitors will show the error message, and next actions will not be dispatched.
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- **shouldRecordChanges** *boolean* - if specified as `false`, it will not record the changes till `pauseRecording(false)` is dispatched. Default is `true`.
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- **pauseActionType** *string* - if specified, whenever `pauseRecording(false)` lifted action is dispatched and there are actions in the history log, will add this action type. If not specified, will commit when paused.
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- **shouldStartLocked** *boolean* - if specified as `true`, it will not allow any non-monitor actions to be dispatched till `lockChanges(false)` is dispatched. Default is `false`.
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- **shouldHotReload** *boolean* - if set to `false`, will not recompute the states on hot reloading (or on replacing the reducers). Default to `true`.
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- **trace** *boolean* or *function* - if set to `true`, will include stack trace for every dispatched action. You can use a function (with action object as argument) which should return `new Error().stack` string, getting the stack outside of reducers. Default to `false`.
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- **traceLimit** *number* - maximum stack trace frames to be stored (in case `trace` option was provided as `true`). By default it's `10`. If `trace` option is a function, `traceLimit` will have no effect, that should be handled there like so: `trace: () => new Error().stack.split('\n').slice(0, limit+1).join('\n')` (`+1` is needed for Chrome where's an extra 1st frame for `Error\n`).
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### License
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MIT
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