Bidirectional upnode

client.js

var upnode = require('upnode')
var dnode = require('dnode')
var assert = require('assert')

var PORT = 5000

var client = upnode(function(remote, connection) {
  connection.on('remote', function(remote) {
    remote.testServer(function(err, value) {
      assert.ok(!err)
      assert.equal(value, 'server success')
      console.log(value)
    })
  })

  this.testClient = function(callback) {
    callback(null, 'client success')
  }
}).connect(PORT)

server.js

var upnode = require('upnode')
var dnode = require('dnode')
var assert = require('assert')

var PORT = 5000

var server = dnode(function(remote, connection) {
  connection.on('remote', function(remote) {
    remote.testClient(function(err, value) {
      assert.ok(!err)
      assert.equal(value, 'client success')
      console.log(value)
    })
  })
  this.testServer = function(callback) {
    callback(null, 'server success')
  }
  console.log(arguments)
}).use(upnode.ping).listen(PORT)