How to get the user IP address in Meteor server?

Question

I would like to get the user IP address in my meteor application, on the server side, so that I can log the IP address with a bunch of things (for example: non-registered users subscribing to a mailing list, or just doing anything important).

I know that the IP address 'seen' by the server can be different than the real source address when there are reverse proxies involved. In such situations, X-Forwarded-For header should be parsed to get the real public IP address of the user. Note that parsing X-Forwarded-For should not be automatic (see http://www.openinfo.co.uk/apache/index.html for a discussion of potential security issues).

External reference: This question came up on the meteor-talk mailing list in august 2012 (no solution offered).

Answer 1

Similar to the TimDog answer but works with newer versions of Meteor:

var Fiber = Npm.require('fibers');  __meteor_bootstrap__.app   .use(function(req, res, next) {     Fiber(function () {       console.info(req.connection.remoteAddress);       next();     }).run();   }); 

This needs to be in your top-level server code (not in Meteor.startup)

Answer 2

1 - Without a http request, in the functions you should be able to get the clientIP with:

clientIP = this.connection.clientAddress; //EX: you declare a submitForm function with Meteor.methods and  //you call it from the client with Meteor.call(). //In submitForm function you will have access to the client address as above 

2 - With a http request and using iron-router and its Router.map function:

In the action function of the targeted route use:

clientIp = this.request.connection.remoteAddress; 

3 - using Meteor.onConnection function:

Meteor.onConnection(function(conn) {     console.log(conn.clientAddress); });