The socket.request object is shared between namespaces

[thetutlage]

Is it by design that the socket.request object is shared between namespaces and socket.id is different? Example code

Server code

import { Server } from 'socket.io'
const io = new Server(httpServer)

io.on('connection', (socket) => {
  socket.request['foo'] = 'true'
  console.log({
    '/': {
      id: socket.id,
      foo: socket.request['foo']
    }
  })
})

io.of('/chat').on('connection', (socket) => {
  // I was not expecting `foo` to exist here
  console.log({
    '/chat': {
      id: socket.id,
      foo: socket.request['foo']
    }
  })
})

Client code

const socket = io()
socket.on('connect', () => {
  io('/chat')
})

Actual output

{ '/': { id: 'WWaLxpX9kdLRwC0LAAAM', foo: 'true' } }
{ '/chat': { id: '65FRA7EYdm2SKFvmAAAN', foo: 'true' } }

Expected output

{ '/': { id: 'WWaLxpX9kdLRwC0LAAAM', foo: 'true' } }
{ '/chat': { id: '65FRA7EYdm2SKFvmAAAN', foo: undefined } }

[darrachequesne]

Yes, it is by design. The request attribute is a reference to the first HTTP request of the Socket.IO session.

[thetutlage]

Thanks for answering 👍