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JavaScript Node.js Basics (2014) Building a Command Line Application Parsing JSON

Posted by worawut wattana
worawut wattana
7,989 Points

I cannot parsing JSON on this work space

-------------------error----------------- at Object.parse (native)
at IncomingMessage.<anonymous> (/home/treehouse/workspace/app.js:19:24)
at emitNone (events.js:72:20)
at IncomingMessage.emit (events.js:166:7)
at endReadableNT (_stream_readable.js:905:12)
at nextTickCallbackWith2Args (node.js:441:9)
at process._tickCallback (node.js:355:17)
----------------my code-------------------- //Problem: We need a simple way to look at a 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 http = require("http"); var username = "chalkers";

function printMessage(username, badgeCount, points) { var message = username + " has " + badgeCount + " total badge(s) and " + points + " points in JavaScript"; console.log(message); }

//Connect to the API URL (https://teamtreehouse.com/username.json) var request = http.get("http://teamtreehouse.com/" + username + ".json", function(response){ var body = ""; //Read the data response.on('data', function (chunk) { body += chunk; }); response.on('end', function(){ var profile = JSON.parse(body); printMessage(username, profile.badges.length, profile.points.JavaScript) }); //Parse the data //Print the data });

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

1 Answer

Marek Chwala
Marek Chwala
9,258 Points

2 Things to help you and anyone else out in the future. TeamTreeHouse has moved all its user profiles to a more secure protocol "https". So you will need to change any reference to http to be https. you can read more about this in the teachers notes here. What is causing you error is that you are not actually getting any JSON to be parsed due to this change.

secondly when posting code in the forum please use proper markdown to make it look a little more readable like so. 

var https = request("https");
var request = https.get("https://teamtreehouse.com/" + username + ".json", function(response) {
  //your code here
)};

When typing you message on the forum you should see. "Reference this Markdown Cheatsheet for syntax examples for formatting your post." just above the "post" button.