traceroute-lite

A simple traceroute module for NodeJS apps.

Install

npm install traceroute-lite

-or-

npm install ben-bradley/traceroute-lite

Test

npm test

-or-

mocha -R spec

Usage

var Traceroute = require('traceroute-lite');
 
var traceroute = new Traceroute('8.8.8.8');
 
traceroute.on('hop', function(hop) {
  console.log(hop); // { counter: 1, ip: '1.2.3.4', ms: 12 }
});
 
traceroute.start(function(err, hops) {
  console.log(hops);
  /* [
   *  { counter: 1, ip: '1.2.3.4', ms: 12 },
   *  { counter: 2, ip: '1.2.3.5', ms: 34 },
   *  ...,
   *  { counter: n, ip: '8.8.8.8', ms: 10 }
   * ]
   */
});

Hop

A 'hop' is a unique IP that your trace crosses. They are represented as objects using this schema:

{
  counter: Number, // A number representing which hop this is in sequence.
  ip: String, // The IP address of the interface on the remote device.
  ms: Number, // The milliseconds it takes to reach that IP
}

If a hop fails to respond, the ip and ms are null.

Events

• hop = When an individual hop is detected, responds with ({ counter: 1, ip: '1.2.3.4', ms: 12 }).
• done = When the trace is complete, responds with (error, hops). The done event occurs before the callback is executed.

Methods

• Traceroute.start(callback) accepts an optional callback that returns (error, hops). The done event occurs before the callback is executed.

Examples

Using a callback:

var Traceroute = require('traceroute-lite');
 
var traceroute = new Traceroute('8.8.8.8');
 
traceroute.start(function(err, hops) {
  console.log(hops);
  /* [
   *  { counter: 1, ip: '1.2.3.4', ms: 12 },
   *  { counter: 2, ip: '1.2.3.5', ms: 34 },
   *  ...,
   *  { counter: n, ip: '8.8.8.8', ms: 10 }
   * ]
   */
});

Using Events:

var Traceroute = require('traceroute-lite');
 
var traceroute = new Traceroute('8.8.8.8');
 
traceroute.on('hop', function(hop) {
  console.log(hop); // { counter: 1, ip: '1.2.3.4', ms: 12 }
});
 
traceroute.on('done', function(err, hops) {
  console.log(hops);
  /* [
   *  { counter: 1, ip: '1.2.3.4', ms: 12 },
   *  { counter: 2, ip: '1.2.3.5', ms: 34 },
   *  ...,
   *  { counter: n, ip: '8.8.8.8', ms: 10 }
   * ]
   */
});
 
traceroute.start();