Socket.io with Adonis.js

Question

I am using Adonis 4.1.0 and Adonis-websocket is only been available for v3. Can anyone tell me workaround for using socket.io with Adonis 4.1.0?

Taki · Answer 1 · 2018-03-21T19:05:51.170

apparently they have been working on this not long ago, it was based on socket.io but because of some issues like memory leaks and others, they decided to use websockets directly instead, check these discussions :
https://github.com/adonisjs/discussion/issues/51
https://forum.adonisjs.com/t/integrating-socket-io-with-adonis-4/519

have you tried using socket.io without relying on Adonis ? , something like :

var app = require('express')();
var http = require('http').Server(app);
var io = require('socket.io')(http);

app.get('/', function(req, res){
  res.sendFile(__dirname + '/index.html');
});

io.on('connection', function(socket){
  console.log('a user connected');
});

http.listen(3000, function(){
  console.log('listening on *:3000');
});

But you should be able to do this with Adonis by now according to : https://github.com/adonisjs/adonis-websocket-protocol

Example :

const filereader = require('simple-filereader')
const msgpack = require('msgpack-lite')
const packets = require('@adonisjs/websocket-packets')

const client = new WebSocket('ws://localhost:3000/adonis-ws')

client.onopen = function () {
  // TCP connection created
}

client.onerror = function () {
  // TCP connection error
}

client.onmessage = function (message) {
  filereader(message, function (error, payload) {
    const packet = msgpack.decode(payload)
    handlePacket(packet)
  })
}

function handlePacket (packet) {
  if (packets.isOpenPacket(packet)) {
    console.log('Server ack connection. Make channel subscriptions now')
  }

  if (packets.isJoinAck(packet)) {
    console.log('subscription created for %s', packet.d.topic)
  }
}

check this for broadcast examples using WS : https://github.com/websockets/ws#broadcast-example

yeah i tried to do according to Socket.io framework. But the issues I've been getting is I cannot emit a message when a record is inserted in Database which I think is given default in Sails.js or Adonis 3.2 version — Tijan Manandhar, Mar 21 '18 at 16:28
and thank you so much for the reply. the community for adonis js is so small, though the framework is very smooth. — Tijan Manandhar, Mar 21 '18 at 16:29
you're welcome :) , i don't know how you're trying to do it but you should do a `Broadcast` in the callback of the function that inserts in the database, as i mentioned above, you can use `ws` with `adonis` and these are examples on how to `broadcast` a message : https://github.com/websockets/ws#broadcast-example , i hope this helps. — Taki, Mar 21 '18 at 19:02

score 1 · Answer 2 · answered Apr 16 '18 at 21:45

1

Create start/socket.js file and paste following code inside it.

const Server = use('Server')
const io = use('socket.io')(Server.getInstance())

io.on('connection', function (socket) {
console.log(socket.id)
})

From Virk Himself in this forum:https://forum.adonisjs.com/t/integrating-socket-io-with-adonis-4/519

answered Apr 16 '18 at 21:45

Tiago Mendes

11
1

You are a life saver, as the forum is no longer available and this is nowhere to be found anymore. – Owehbeh Apr 12 '21 at 20:45

score 0 · Answer 3 · answered Dec 17 '19 at 14:22

create a standalone socket io configuration file in start/socket.js

const io = require('socket.io')();
io.listen(3000);
io.on('connection', function (socket) {
  console.log(socket.id)
})

to start your socket io server you can configure your server.js as below

new Ignitor(require('@adonisjs/fold'))
  .appRoot(__dirname)
  .preLoad('start/socket') //path of socket.js
  .fireHttpServer()
  .catch(console.error)

now when you start your server then it will start along with socket io

Socket.io with Adonis.js

3 Answers3