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JavaScript Node.js Basics (2014) Building a Command Line Application Handling Parsing and Status Code Errors

Aaron Hill
Aaron Hill
9,732 Points

Getting TypeError when trying to create status code errors.

I'm on the part where we add to the "if" statement in the event of a status code error. This is my code:

//Problem: We need a simple way to look at user's badge count and javascript points.
//Solution: Use Node.JS to connect to treehouses api.
var https = require("https");
var username = "aaronhill34";

//Print out message
function printError(error){

function printMessage(username, badgecount, points) {
  var message = username + " has " + badgecount + " total badge(s) and " + points + " points "

//Print out error messages

//Connect to API Url
var request = https.get("https://teamtreehouse.com/" + username + ".json", function(response){
  var body = "";
  //Read the data from the response
  response.on('data', function(chunk) {
    body += chunk;
  response.on("end", function(){
   if(response.statusCode === 200) {
      try {
      var profile = JSON.parse(body);
      printMessage(username, profile.badges.length, profile.points.JavaScript)
      } catch(error) {
        //Parse Error
   } else {
     //Status Code Error
     printError({message: "There was an error getting the profile for " + username + ". (" + https.STATUS_CODES[response.statusCode] + ")"});

  //parse data
  //print the data out


//Connection Error
request.on("error", printError);

It throws an error in the console but instead of a nice string I get the following:

treehouse:~/workspace$ node app.js                         

or getting the profile for " + username + ". (" + https.STA

TypeError: Cannot read property '404' of undefined         
    at IncomingMessage.<anonymous> (/home/treehouse/workspa
    at IncomingMessage.emit (events.js:117:20)             
    at _stream_readable.js:944:16                          
    at process._tickCallback (node.js:442:13)    

Is it because I'm using https instead of http? I thought I had to use https because when I use http I get a different error. I appreciate any help you can offer.

5 Answers

Aaron Hill
Aaron Hill
9,732 Points

I found a workaround,

I guess you can't use .STATUS_CODES when accessing the https object. So that's why I was getting the typeError. To fix it I changed the object to http.STATUS_CODES and made sure to require http in addition to https at the top of my code.

"Great job, me!" "Thanks, me!"

yeah there is no https.STATUS_CODES object thats why you are getting a type error of undefined (basically telling you that https.STATUS_CODES doesn't exist).

R Halabi
R Halabi
587 Points

Thanks, guys! This was the perfect fix.

Jamie Tuffen
Jamie Tuffen
8,042 Points

Yeah worked well for me. Thanks.