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server.js
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server.js
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// Express initializes app to be a function handler that you can supply to an HTTP server (as seen in line 2).
var app = require('express')();
var http = require('http').Server(app);
var io = require('socket.io')(http);
var users = [];
var connected = [];
var connectedCounter = 0;
app.get('/', function (req, res) {
res.sendFile(__dirname + '/index.html');
});
// when connected
io.on('connection', function (socket) {
connectedCounter = connectedCounter + 1;
console.log("a user connected");
console.log("connected users: " + connectedCounter);
// when a user is connected, get the "chat message" emit from index.html (its the value of the input in the form) and spit the msg
socket.on('chat message', function (msg) {
io.emit('chat message', msg);
});
// When disconnected
socket.on('disconnect', function () {
connectedCounter = connectedCounter - 1;
console.log("a user disconnected");
console.log("connected users: " + connectedCounter);
})
});
// where the server deploys
localHostPort = 5500;
http.listen(localHostPort, function () {
console.log('Server started on localhost:' + localHostPort);
});