如何使socket.io仅监听一条特定的路由？

Question

I'm only wanting socket.io to listen on my /home route but it seems to be listening on every route? Is there a way to get it only to listen to my /home route? This is what I have:

const server = require('http').Server(app);
const io = require('socket.io')(server);

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

This is what I've tried, but this just displays a JSON file on the home path

const io = require('socket.io')(3000, {
  path: '/home',
  serveClient: true,
  // below are engine.IO options
  pingInterval: 10000,
  pingTimeout: 5000,
  cookie: false
});

Answer 1

I'm only wanting socket.io to listen on my /home route but it seems to be listening on every route? Is there a way to get it only to listen to my /home route?

A client's Javascript either connects to the socket.io server or it doesn't - it's binary. There's no use for multiple routes like there are with http requests. socket.io supports connecting and listening for a particular namespace if you wanted multiple separate connection "channels" for multiple connections.

Ok so it just listens to everything on the site when the site is loaded? How do I only change things on one of my pages if it is listening to the whole site? Or does that not slow things down?

A socket.io server just listens for incoming connections. It is not associated with a route.

To have only some of your pages connect on socket.io, you either use different Javascript in some of your pages or you have your common Javascript check the path of the page and only connect on socket.io for specific page paths.

For example, you could have this in your web page Javascript:

var socket;
if (window.location.pathname === "/home") {
     socket = io();
     socket.on(...);
}

This would allow your common Javascript (that is present in many pages) to only create a socket.io connection in your /home page.