jiti-meet/react/features/base/redux/middleware.js

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/* @flow */
import _ from 'lodash';
import { persistState } from './functions';
import MiddlewareRegistry from './MiddlewareRegistry';
import { toState } from '../redux';
/**
* The delay that passes between the last state change and the state to be
* persisted in the storage.
*/
const PERSIST_DELAY = 2000;
/**
* A throttled function to avoid repetitive state persisting.
*/
const throttledFunc = _.throttle(state => {
persistState(state);
}, PERSIST_DELAY);
/**
* A master MiddleWare to selectively persist state. Please use the
* {@link persisterconfig.json} to set which subtrees of the Redux state
* should be persisted.
*
* @param {Store} store - The redux store.
* @returns {Function}
*/
MiddlewareRegistry.register(store => next => action => {
const result = next(action);
throttledFunc(toState(store));
return result;
});