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Coffeekraken redux-web-worker

Redux middleware that let you use web worker with ease to handle your expensive (or not) actions

Table of content

1. Install
2. Get Started
3. Requirements
4. Browsers support
5. Contribute
6. Who are Coffeekraken?
7. Licence

Install

npm install coffeekraken-redux-web-worker --save

Get Started

Suppose we have container that trigger a FETCH_TODOS action like so:

TodoContainer.js

import { registerWorker } from 'coffeekraken-redux-web-worker'
import tasksWorker from './tasks.worker'
import { FETCH_TODOS } from './constants'
class TodoContainer extends React.Component {
  componentDidMount() {
    registerWorker(tasksWorker)
    const { dispatch } = this.props
    dispatch({
      type: FETCH_TODOS,
      payload: 'something'
    })
  }
}

Note that we have imported and registered the worker before dispatching the action.

Now that we have an action dispatched and our worker registered, let's see the tasks.worker.js content:

tasks.worker.js

import axios from 'axios'
import { expose } from '../../middlewares/webworker'
import { FETCH_TODOS, TODOS_FETCHED } from './constants'
 
export default expose({
  [FETCH_TODOS]: async ({ dispatch, action, state }) => {
    const todos = await axios.get(
      'https://my-json-server.typicode.com/coffeekraken/react-boilerplate/todos'
    )
    dispatch({
      type: TODOS_FETCHED,
      todos: todos.data
    })
  }
}, self)

The last step if to apply the middleware as you would do for any other redux middleware. Here's how:

store.js

import { createStore, applyMiddleware } from 'redux'
import webworkerMiddleware from 'coffeekraken-redux-web-worker'
 
import reducer from './reducers'
 
// create the store with our middleware
const store = createStore(
  reducer,
  applyMiddleware(webworkerMiddleware)
)
 
// render the application

Requirements

In order for this middleware to work, you'll need to install the worker-loader webpack loader.

npm install worker-loader --save-dev

Here's an example of webpack configuration:

webpack.config.js

module.exports = {
  //...
  module: {
    rules: [{
      test: /\.worker\.js$/,
      use: {
        loader: 'worker-loader',
        options: {
          inline: true,
          fallback: false
        }
      }
    }]
  }
}

Browsers support

IE / Edge	Firefox	Chrome	Safari
IE11+	last 2 versions	last 2 versions	last 2 versions

As browsers are automatically updated, we will keep as reference the last two versions of each but this component can work on older ones as well.

Contribute

This is an open source project and will ever be! You are more that welcomed to contribute to his development and make it more awesome every day. To do so, you have several possibilities:

1. Share the love ❤️
2. Declare issues
3. Fix issues
4. Add features
5. Build web component

Who are Coffeekraken

We try to be some cool guys that build some cool tools to make our (and yours hopefully) every day life better.

More on who we are

License

The code is available under the MIT license. This mean that you can use, modify, or do whatever you want with it. This mean also that it is shipped to you for free, so don't be a hater and if you find some issues, etc... feel free to contribute instead of sharing your frustrations on social networks like an asshole...