Question: How to send Acknowledgment for socket.io event?
in node.js (Server side)
io.sockets.on('connection', function(socket){
/* Message Received from Client*/
socket.on('chat_messsage', function(data, callback){
var responseData = { 'message':data.message, 'received':1};
callback(responseData); //Send Acknowledgment to the client
});
});
Client Side JavaScript
var socket = io.connect('http://localhost:3000');
socket.on('connected', function (data) {
//Send message to Server with callback function
socket.emit('chat_messsage', {message:"this is message"}, function(response){
console.log(response); //console the Acknowledgment
});
});
Question: How to Send additional data on socket connection?
Client side, connect with parameter
var socket = io.connect(chatURL,{ query: "req_from=browser" });
Sever side, Detect the client Connection.
io.on('connection', function (socket) {
console.log(socket.handshake.query['req_from']);
});
Question: How to connect node with http and https?
var fs = require('fs');
var http = require('http');
var https = require('https');
var privateKey = fs.readFileSync('cert/server.key', 'utf8');
var certificate = fs.readFileSync('cert/server.crt', 'utf8');
var credentials = {key: privateKey, cert: certificate};
var express = require('express');
var app = express();
var httpServer = http.createServer(app);
var httpsServer = https.createServer(credentials, app);
//http connect
httpServer.listen(8080);
//https connect
httpsServer.listen(8443);
