JavaScript Singleton to connect to WebSocket (originally for React project)

webSocket.js

// Thank you Ranatchai Chernbamrung for sample socketIO singleton pattern
// This code is originally for my React project, but should work with any ES6 project that support `import` statement

// How it works
// 1. Create webSocket.js to establish the connection and retrieve the connection
// 2. In main file, import webSocket.js to establish the connection
// 3. In other component files, import webSocket.js to retrieve the connection

// webSocket.js
let client

export const initws = (mesg) => {
  client = new WebSocket('ws://localhost:4237')
  return client
}

export const getws = () => {
  return client
}

// App.js
import { initws } from './webSocket'
let ws = initws('Hi')
ws.send(...)
ws.onmessage = ev => { console.log(ev.data) }

// SomeComponent.js
import { getws } from './../webSocket'
let ws = getws()

I have used this library for re-connection sockets when server disconnected, but what i want is when server is disconnected and reconnected then i want to send the previous request in order to get the current screen response(last ws.send function response), if you find any thing regarding this please let me know.

Websocket Reconnect

Thanks for sharing this!
For your case of submitting the previous request, you might be able to use try { } catch { } blocks to record the failed request so that you can send them again.