channeljs

Establish a channel between the main thread and the worker, can send information using promise-based methods, the promise gets resolved when the recipient responds.

support Node.js and Browser.

problem

Generally use postMessage to send messages, and use onmessage to get messages, but they have no corresponding relationship, you are not sure whether the obtained message is what you need.

worker.postMessage('1 + 1'); // When do you get results?

window.onmessage = ({ data }) => {
  // `data` is it a `1 + 1` result ?
}

resolve

Add a unique id when sending a message, Check id when getting message, execute callback.

This library works like this.

install

npm i @mantou/channel

usage

main thread:

const channel = new Channel(woker);

channel
  .sendMessage('ping')
  // Received reply
  .then(data => console.log('Received worker thread message:', data))
  .catch(console.error);

worker thread:

const channel = new Channel(self);

channel.onMessage.addListener(data => {
  console.log('Received main thread message:', data);
  // Reply sender
  return 'pong';
});