node.js / express socket problem

server.js

var express, app;

express = require("express");

app = express();
app.configure(function() {
  app.use(express.bodyParser())
  app.use(app.router)
});
app.post('/up', function(req, resp) {
  console.log("Got here");
  resp.json({yay: "it worked"});
});
app.listen(13116, function() {
  console.log("listening on 13116");
});

server.js.output

$ node -v
v0.8.10
$ node server.js
listening on 13116
Got here

smallfile.request

test.js

var net, fs, read_stream, client, response_data;

net = require("net");
fs = require("fs");

read_stream = fs.createReadStream("smallfile.request");
client = net.connect(13116);
response_data = "";
client.on('data', function(data){
  response_data += data;
});
client.on('end', function(){
  var response_text, resp;
  if (response_data.length === 0) {
    throw new Error("wtf, it happened.");
  }
  console.log("it worked", response_data);
});
read_stream.pipe(client);

test.js.output

$ node -v
v0.8.10
$ node test.js 

test.js:16
    throw new Error("wtf, it happened.");
          ^
Error: wtf, it happened.
    at Socket.<anonymous> (test.js:16:11)
    at Socket.EventEmitter.emit (events.js:123:20)
    at TCP.onread (net.js:417:51)