node js - I am having some trouble with JSON.parse()

Question

I have been playing around with the youtube API and node.js, so far I have been able to get a response from the API and console.log it onto the terminal.

When I try to get the response and use JSON.parse, I get a weird error:

Got response: 200

undefined:1
http://www.w3.or
^
SyntaxError: Unexpected token u
    at Object.parse (native)
    at IncomingMessage.<anonymous> (/home/ubuntu/node_temp4/index.js:19:10)
    at IncomingMessage.emit (events.js:88:20)
    at HTTPParser.onMessageComplete (http.js:137:23)
    at Socket.ondata (http.js:1137:24)
    at TCP.onread (net.js:354:27)

This is my script:

var http = require("http");

var searchQuery = "cats";
var queryResponse;

var options = {
  host: 'gdata.youtube.com',
  path: "/feeds/api/videos?q=" + searchQuery + "&max-results=1&v=2&alt=json"
};

http.get(options, function(response) {
  console.log("Got response: " + response.statusCode);

  response.on('data', function(chunk){
    queryResponse += chunk;
  });

  response.on('end', function(){
    JSON.parse(queryResponse);
    console.log('end');
  });
}).end();

Answer 1

The variable queryResponse is set to undefined and you are doing queryResponse += chunk in the 'data' envent handler which means queryResponse = queryResponse + chunk so you get

undefined{"youtube":["Api", "response"]}

you can fix it by instantiating queryResponse as an empty string var queryResponse = ''