Get the client's IP address in socket.io

Question

When using socket.IO in a Node.js server, is there an easy way to get the IP address of an incoming connection? I know you can get it from a standard HTTP connection, but socket.io is a bit of a different beast.

Answer 1

Latest version works with:

console.log(socket.handshake.address);

Answer 2

on socket.io 1.3.4 you have the following possibilities.

socket.handshake.address,

socket.conn.remoteAddress or

socket.request.client._peername.address

Answer 3

use socket.request.connection.remoteAddress

Answer 4

In socket.io 2.0: you can use:

socket.conn.transport.socket._socket.remoteAddress

works with transports: ['websocket']

Answer 5

Version 0.7.7 of Socket.IO now claims to return the client's IP address. I've had success with:

var socket = io.listen(server);
socket.on('connection', function (client) {
  var ip_address = client.connection.remoteAddress;
}