User Timing middleware for Redux
npm install redux-user-timing> User Timing middleware for profiling redux application
Measuring performance is crucial for optimizing the application. Using with User Timing API, You can inspect performance about each dispatched redux action. For more details, check out Carl Vitullo's Blog: Performance Profiling a Redux App.
- Performance Analysis in Chrome DevTools
!Performance Analysis Example in Chrome DevTools
``shell`
$ npm i redux-user-timing
Alternatively, using yarn:
`shell`
$ yarn add redux-user-timing
Then enable redux-user-timing with applyMiddleware()
`js
import { createStore, applyMiddleware } from 'redux';
import userTiming from 'redux-user-timing';
import rootReducer from './reducers';
const store = createStore(rootReducer, applyMiddleware(userTiming));
`
Please, use this middleware only for development environment.
- configureStore.js
`js
import { createStore, applyMiddleware } from 'redux';
import userTiming from 'redux-user-timing';
import rootReducer from './reducers';
const configureStore = initialState => {
const middlewares = [
/ Some other middlewares /
];
if (process.env.NODE_ENV !== 'production') {
// Recommend to add redux-user-timing as a last middleware.
middlewares.push(userTiming);
}
const store = createStore(
rootReducer,
initialState,
applyMiddleware(...middlewares),
);
return store;
};
export default configureStore;
``
This idea is inspired by clarkbw. and thanks for Carl Vitullo about kind blog explanation.
MIT © Taehwan Noh