Redux-idle-middleware NPM

Redux Idle

Redux middleware and reducer to update your store when your user goes idle.

Installation

npm i redux-idle-middleware

redux-idle-middleware has a peer dependency over redux. You will get a warning if it's not already installed in your node nodules.

Quickstart

import { combineReducers, createStore, applyMiddleware } from 'redux';
import { idleMiddleware, idleReducer } from 'redux-idle-middleware';

/**
 * Use the provided reducer to quickly update some part of your state.
 */
const rootReducer = combineReducers({
  isUserIdle: idleReducer(),
});

/**
 * Configure the provided middleware.
 */
const loadedIdleMiddleware = idleMiddleware({ timeToWaitBeforeIdleness: 5000 });

/**
 * Create your store with your middlewares.
 */
const store = createStore(rootReducer, applyMiddleware(loadedIdleMiddleware));

API

The following are part of the public API and can be imported from redux-idle-middleware.

`idleReducer`

This provided reducer factory can be plugged into your state and automatically update some part of it out of the box. You choose to which part of the state it gets plugged in, isUserIdle is just for the example.

Usage

import { combineReducers } from 'redux';
import { idleReducer } from 'redux-idle-middleware';

const rootReducer = combineReducers({
  isUserIdle: idleReducer(),
});

`idleMiddleware`

This provided middleware factory can be configured and used when creating the redux store. The following options can be provided:

{
  /**
   * How much time must enlapse before `redux-idle-middleware` considers the current user to be idle. The value is in **milliseconds**
   */
  timeToWaitBeforeIdleness: number;
}

Usage

import { createStore, applyMiddleware } from 'redux';
import { idleMiddleware } from 'redux-idle-middleware';

const rootReducer = ...;
const loadedIdleMiddleware = idleMiddleware({
  timeToWaitBeforeIdleness: 5000 // 5 seconds.
})

const store = createStore(rootReducer, applyMiddleware(loadedIdleMiddleware));

`REDUX_IDLE_ACTION_TYPE`

This is the action type that's being dispatched by the idle middleware. Usually, if you use the provided reducer you are not going to need this. Although, for some cases if you need to react on this action in some other reducer, you can use it.

Usage

import { REDUX_IDLE_ACTION_TYPE } from 'redux-idle-middleware';

const bannerReducer = (state, action) => {
  if (action.type === REDUX_IDLE_ACTION_TYPE) {
    return { ...state, shouldShowIdleBanner: action.isIdle };
  }

  return state;
};

Contribute

Contributions are welcome! Please open issues when you found a bug. If you wish to fix a bug, a pull request is necessary. The PR is required to pass the tests and the linter before being merged. If you wish to work on a new feature, open an issue and we'll talk about it.

Run tests:

npm t

Build

npm run build

Misc

This aims to be a simple middleware you can plug into your store and gives you a boolean if your user is considered idle or not. It doesn't do more than that.