Redux Async Queue

Async queue middleware for Redux.

npm install --save redux-async-queue

If you used ES modules

import ReduxAsyncQueue from 'redux-async-queue' // no changes here 😀

If you use CommonJS

var ReduxAsyncQueue = require('redux-async-queue').default

If you need a UMD version

var ReduxAsyncQueue = window.ReduxAsyncQueue.default

What is it?

ReduxAsyncQueue middleware makes queueing redux actions painless. This allows you to fire multiple actions simultaneously and have them execute asynchronously in order.

For example, let's say we are making burgers (because they're delicious!). We can only make one burger at a time, but our friends keep coming up and saying they want one. You have 10 requests, but can only make one at a time. Here is how we'd write that delicious example out with the ReduxAsyncQueue middleware.

const MAKE_BURGER = 'MAKE_BURGER';

function makeBurger(ingredients) {
  return {
    type: MAKE_BURGER,
    payload: ingredients,
  };
}

function queueMakeBurger(style) {
  return {
    queue: MAKE_BURGER,
    callback: (next, dispatch, getState) => {
      getIncredients(style).then(incredients => {
        dispatch(makeBurger(ingredients));
        next();
      }, 1000);
    }
  }
}

You'll notice the next() call within callback. That is the key to letting ReduxAsyncQueue know that you are ready to start making the next burger. The queue key specifies to which queue this callback belongs. You may have several different queues for any given application.

Installation

npm install --save redux-async-queue

To enable ReduxAsyncQueue, use applyMiddleware():

import { createStore, applyMiddleware } from 'redux';
import ReduxAsyncQueue from 'redux-async-queue';
import reducer from './reducers/index';

const store = createStore(
  reducer,
  applyMiddleware(ReduxAsyncQueue)
);

License

MIT