socket io tutorial - Installation or Setup - socket io android - socket io client

First, install Socket io module in node.js application.

npm install Socket io --save

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Basic HTTP Setup

The following example attaches Socket io to a plain node.js HTTP server listening on port 3000.

var server = require('http').createServer();

var io = require('Socket io')(server);

io.on('connection', function(socket){

  console.log('user connected with socketId '+socket.id);

  socket.on('event', function(data){
      console.log('event fired');
  });

  socket.on('disconnect', function(){
      console.log('user disconnected');
  });

});

server.listen(3000);

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Setup with Express

Express app can be passed to http server which will be attached to Socket io.

var app = require('express')();                   //express app
var server = require('http').createServer(app);   //passed to http server
var io = require('Socket io')(server);            //http server passed to Socket io

io.on('connection', function(){

  console.log('user connected with socketId '+socket.id);

  socket.on('event', function(data){
      console.log('event fired');
  });

  socket.on('disconnect', function(){
      console.log('user disconnected');
  });

});

server.listen(3000);

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Client Side Setup

Check the Hello World example above for the client side implementation.

Getting started with socket

C++ socket

Getting started with Socket io

Handling users with Socket io

Listen to Events

Broadcast

Fire Custom Events

Getting started with WebSockets

Differences between WebSockets and AJAX

Python TCP socket simple server and client examples

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socket io tutorial - Installation or Setup - socket io android - socket io client

click below button to copy the code. By Socket tutorial team

Basic HTTP Setup

click below button to copy the code. By Socket tutorial team

Setup with Express

click below button to copy the code. By Socket tutorial team

Client Side Setup

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