how to install socket.io to node js
$ npm install socket.iohow to install socket.io to node js
$ npm install socket.iosocket.io client send data node js server
var socket = io.connect('http://localhost');
socket.emit('my other event', { my: 'data' });
//server side
io.sockets.on('connection', function (socket) {
socket.on('my other event', function (data) {
console.log(data);
});
});
//sending data from the user via a socket.io
socket.on("test", function (data) {
data.forEach(obj => {
console.log("Yer : " + obj.yer + ", Lat : " + obj.lat + ", Long : " + obj.lng);
})
});socket io script
<script src="/socket.io/socket.io.js"></script>
<script>
const socket = io();
</script>socket io connect to namespace
var io = require('socket.io')(http, { path: '/myapp/socket.io'});
io
.of('/my-namespace')
.on('connection', function(socket){
console.log('a user connected with id %s', socket.id);
socket.on('my-message', function (data) {
io.of('my-namespace').emit('my-message', data);
// or socket.emit(...)
console.log('broadcasting my-message', data);
});
});socket io express
const app = require("express")();const httpServer = require("http").createServer(app);const options = { /* ... */ };const io = require("socket.io")(httpServer, options);io.on("connection", socket => { /* ... */ });httpServer.listen(3000);// WARNING !!! app.listen(3000); will not work here, as it creates a new HTTP serverCopyright © 2021 Codeinu
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