This is simple chat on WS and express.js
. I get the error that the browser can't connect to server via websockets
.
client connection:
file: rtc.html
ws = new WebSocket('wss://' + window.location.hostname + '/wr' );
ws.onerror = (error) => { console.log(error); };
ws.onmessage = (message) => {
. . .
Server code:
const express = require('express');
const http = require('http');
const WebSocket = require('ws');
const app = express();
app.get('/rtc', (req, res)=>{
res.sendFile('/home/user/dev/rtc.html');
});
const server = http.createServer(app);
const wss = new WebSocket.Server({ server:server, path: "/wr" });
. . .
app.listen(3000);
UPD: The problem was due to the fact that I was doing chat on webrtc
and tested in Mozilla
and Mozilla
would not connect without https
connection however getUserMedia
ran fine. It was necessary to write so:
var https = require('https');
var serv = https.createServer(serverConfig, app);
Change from:
app.listen(3000);
to:
server.listen(3000);
When you use app.listen()
, it creates a new http server and thus the one you connected socket.io to is never started. To fully understand app.listen()
, the code for it looks like this:
app.listen = function(){
var server = http.createServer(this);
return server.listen.apply(server, arguments);
};
So, you can see it was creating a different http server than the one you attached your webSocket server to and thus that other one was never started.
Alternatively, you could also do this:
const server = app.listen(3000);
const wss = new WebSocket.Server({ server:server, path: "/wr" });
And, not create your own http server at all. app.listen()
returns the new server object that it created.
just make sure you use server.listen().Rest the code speaks itself
var express = require('express'), app = express(), http = require('http'), server = http.createServer(app), WebSocketServer = require('ws').Server, wss = new WebSocketServer({ server }); app.use(express.static(__dirname)); server.listen(process.env.PORT || 3000, function () { // console.log("Node server is running on http://localhost:3000/"); }); wss.on('connection', function (ws) { //console.log("New connection."); ws.on('message', function (message) { //console.log("Message received:", message); });
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