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JavaScript

Posted by Eric Park
Eric Park
1,063 Points

Why is response not defined?

I am running node app.js, but I keep getting an error: 

ReferenceError: response is not defined                 
    at Object.<anonymous> (/home/treehouse/workspace/app
.js:21:1)                                               
    at Module._compile (module.js:410:26)               
    at Object.Module._extensions..js (module.js:417:10) 
    at Module.load (module.js:344:32)                   
    at Function.Module._load (module.js:301:12)         
    at Function.Module.runMain (module.js:442:10)       
    at startup (node.js:136:18)                         
    at node.js:966:3

Here is my actual code:

//Problem: We need a simple way to look at user's badge count and Javascript points
//Solution: Use node.js to connect to Treehouse's API to get profile information to print out 
var https = require("https");
var username = 'ericpark';

function PrintMessage(username, badgeCount, points) {
  var message = username + " has " + badgeCount + " total badges and " + points + " total points in Javascript."; 
  console.log(message);
}

//Connect to the API URL (http://teamtreeouse.com/username.json)
var request = https.get("https://teamtreehouse.com/" + username +".json", function(response){
console.log(response.statusCode);
});

request.on("error", function(error){
  console.error(error.message);
});

//Read the data
response.on('data', function (chunk) {
    console.log('BODY: ' + chunk)
  });
//Parse the data
//Print the data out

3 Answers

grahammowat2
grahammowat2
6,038 Points

You have made one simple mistake took me a while to notice it myself. You have put the response on it's own i.e. 

response.on('data', function(chunk){ 
         console.log('BODY: ' + chunk); 
});

Where you should actually have this response inside your request like so: 

var request = https.get("https://teamtreehouse.com/" + username + ".json", function(response){
console.log(response.statusCode);

response.on('data', function (chunk) {
    console.log('BODY: ' + chunk)
  });
});

I hope this makes sense for you. Response is not defined for because you have declared the response outside of your https.get function.

Steven Parker
Steven Parker
243,215 Points
Steven Parker
Steven Parker
243,215 Points

:point_right: On line 21, you call response.on at the outer level, but you haven't defined response in the outer context. It's only defined within the context of the anonymous function inside the https.get.

There's a similar call to request.on at line 16, but that was already defined on line 12.

You also seem to have had a blockquoting issue with quote marks, but I'm assuming that's not the issue.

Eric Park
Eric Park
1,063 Points
Eric Park
Eric Park
1,063 Points

Coolio thanks!